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docs: add the blog post "How 3.13.0 got faster"
A post for the documentation (Home > Blog) on how 3.13.0 became faster: eight themes with the pull requests behind them, the ideas taken from other libraries, what did not work, how the fast paths are tested, and the compile-time cost. Every number comes from a run on 2026-10-27 (3.12.0 against develop plus the open non-draft PRs, Apple M1 Max) or from the linked PR. - docs/mkdocs/docs/home/blog/how_3_13_0_got_faster.md: the post. - docs/mkdocs/scripts/figures/perf_blog.py: draws its 12 figures (overview, eight timeline panels, the SWAR test, the cliffs, json_view throughput) as inline SVGs in the nj-charts style; data/perf_timeline.csv holds the timeline. - tests/benchmarks/history: history.cpp and history.py time one fixed program against the header of every commit that changed it, interleaved, and write one CSV row per commit with its PR. The timeline of the post comes from it. Signed-off-by: Niels Lohmann <mail@nlohmann.me>
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index,commit,date,pr,subject,parse_twitter,parse_citm,parse_canada,parse_citm_compact,parse_twitter_ifstream,accept_twitter,dump_twitter,dump_citm,dump_canada,dump4_citm,from_cbor_twitter,to_cbor_twitter,copy_destroy_citm,equal_citm,view_parse_twitter,view_parse_citm,view_parse_canada
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0,55f93686c0,2025-04-11,,Merge branch 'release/3.12.0',3571.487,8219.609,17049.073,4366.792,3846.006,2394.213,1441.213,1375.446,7510.989,1917.809,3463.281,695.524,1643.327,1956.891,,,
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1,1705bfe914,2025-04-11,4727,:bookmark: set version to 3.12.0 (#4727),3589.331,8245.422,17079.250,4422.711,3894.787,2397.597,1440.546,1377.745,7514.698,1922.371,3498.997,695.559,1655.240,1967.301,,,
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2,4cca3b9cb2,2025-04-13,4738,Fix warning and add emscripten CI step (#4738),3559.657,8195.105,17066.291,4373.011,3794.269,2388.900,1419.182,1355.724,7420.703,1912.038,3468.667,664.214,1631.610,1939.475,,,
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3,96c1b52f1c,2025-04-15,4742,Fix conversion to std::optional (#4742),3573.838,8157.276,16993.208,4383.656,3858.927,2395.092,1438.169,1372.208,7497.776,1925.481,3482.185,667.895,1633.619,1946.687,,,
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4,88c92e605c,2025-04-16,4744,Fix compilation failure and warnings with NVHPC (#4744),3563.149,8039.911,16922.739,4381.927,3768.560,2385.086,1407.564,1345.578,7370.063,1897.474,3462.010,662.955,1623.286,1925.804,,,
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5,c67d538274,2025-04-17,4749,Fix C4702 warning and extend MSVC CI job (#4749),3585.422,8251.057,17050.448,4400.542,3896.586,2390.655,1440.391,1371.722,7453.474,1921.277,3478.523,667.911,1636.206,1939.531,,,
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6,756ca22ec5,2025-04-23,4736,Provide fallback for missing `char8_t` support (#4736),3559.146,8139.703,17085.114,4387.658,3856.745,2392.849,1424.997,1370.599,7477.537,1907.661,3484.427,665.541,1634.156,1957.401,,,
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7,6b9199382b,2025-04-27,4763,Add missing header (#4763),3541.323,8077.761,17011.636,4359.183,3842.380,2396.686,1421.116,1363.737,7431.375,1902.909,3474.250,664.442,1625.644,1934.732,,,
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8,3b02afb9d9,2025-04-28,4760,Specialize char_traits for std::byte to fix from_msgpack (fixes #4756) (#4760),3583.070,8198.146,17134.698,4381.743,3899.872,2409.185,1440.233,1380.810,7504.838,1921.781,3500.125,666.078,1657.207,1966.036,,,
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9,eef76c200e,2025-04-28,4764,Make library work with C++20 modules (#4764),3528.529,8080.458,16936.656,4330.570,3764.287,2363.848,1407.851,1358.079,7356.239,1897.423,3455.287,665.194,1632.255,1937.675,,,
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10,dff2b4756c,2025-04-29,4765,fix: BJData size calculation overflow (#4765),3553.706,8141.375,17047.511,4360.144,3797.070,2389.756,1417.737,1364.718,7454.313,1921.962,3479.878,666.456,1644.760,1944.696,,,
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11,9110918cf8,2025-05-04,4748,Fix typos (#4748),3563.682,8176.427,17239.354,4398.055,3891.669,2399.782,1441.669,1387.133,7516.073,1925.323,3483.271,669.348,1647.760,1957.747,,,
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12,46e7cd3dc2,2025-05-16,4775,Replace deprecated std::is_trivial in C++26 (#4775),3565.242,8195.396,17135.646,4373.479,3851.604,2392.258,1418.425,1370.958,7464.854,1909.844,3485.046,665.606,1643.155,1952.329,,,
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13,828c891427,2025-05-16,4786,Extend type_name() to invalid type (#4786),3549.573,8103.761,17066.198,4359.911,3804.849,2389.121,1428.584,1366.405,7424.838,1914.434,3452.497,667.452,1632.750,1928.324,,,
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14,4b17f90f65,2025-05-22,4609,Add `ignore_trailing_commas` option (#4609),3544.662,8132.052,16997.375,4344.592,3825.765,2382.755,1408.435,1367.468,7460.448,1924.522,3434.062,733.089,1631.356,1891.572,,,
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15,b19f058465,2025-06-01,4802,Encode infinity and NaN as float for MsgPack and CBOR (#4802),3550.020,8126.438,17350.885,4327.596,3825.419,2389.356,1409.422,1376.649,7363.802,1921.226,3441.081,683.190,1624.144,1886.388,,,
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16,cf16c5ab9f,2025-06-02,4805,Use binary_t::value_type (#4805),3551.735,8143.521,17153.291,4309.477,3829.229,2387.640,1428.550,1385.585,7415.271,1932.347,3425.838,657.735,1631.586,1888.954,,,
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17,d70e46bc65,2025-06-25,4830,:bug: add missing header to input_adapters.hpp (#4830),3546.448,8157.469,17062.364,4335.300,3805.221,2382.796,1422.863,1382.581,7411.401,1928.676,3433.190,691.842,1632.972,1892.453,,,
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18,30d27df61c,2025-07-31,4871,Fix CI (#4871),3570.015,8150.859,17070.625,4330.078,3806.505,2400.329,1434.947,1381.065,7425.718,1931.556,3429.632,656.545,1633.515,1892.916,,,
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19,efcf9efb4f,2025-08-02,4873,Fixes #4854 Explicitly handle nullptr in sax_parse (#4873),3520.381,8050.719,16883.042,4331.820,3861.906,2368.069,1408.435,1375.954,7363.651,1898.466,3432.992,653.988,1634.141,1894.948,,,
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20,4106af8d92,2025-08-20,4896,":rotating_light: suppress cppcoreguidelines-c-copy-assignment-signature,misc-unconventional-assign-operator (#4896)",3540.599,8175.265,17010.438,4345.182,3866.833,2393.935,1435.100,1389.496,7453.724,1945.791,3433.169,657.446,1638.434,1900.360,,,
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21,a63795caf1,2025-10-22,4791,:rotating_light: avoid deprecation warning (#4791),3550.057,8174.646,16983.177,4363.521,3888.336,2393.305,1423.434,1376.334,7469.407,1936.013,3447.279,666.706,1645.354,1903.707,,,
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22,1cc56b2dcd,2025-10-23,4957,Address CWG issue 2521 (#4957),3557.396,8119.651,17072.730,4351.881,3834.739,2386.097,1442.100,1393.245,7474.463,1932.315,3446.883,660.187,1638.983,1896.000,,,
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23,54be9b04f0,2025-10-23,4960,:page_facing_up: update REUSE (#4960),3554.625,8098.287,17115.219,4324.578,3809.950,2390.791,1424.488,1376.715,7422.828,1913.208,3424.693,659.030,1623.405,1892.756,,,
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24,29913ca760,2025-10-25,4963,Add char8_t* overload for _json and _json_pointer (#4963),3544.899,8169.203,17007.844,4353.594,3797.630,2392.108,1423.032,1375.216,7349.787,1909.897,3428.771,655.625,1635.273,1891.018,,,
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25,515d994acb,2026-01-01,5044,:page_facing_up: adjust year (#5044),3524.610,8059.521,16949.416,4313.508,3773.750,2364.742,1410.427,1372.988,7382.438,1915.502,3403.159,643.968,1618.972,1884.213,,,
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26,8f75700141,2026-01-11,4958,support types convertible to string_view as JSON keys (#4958),3546.757,8142.599,17103.386,4327.739,3825.990,2388.540,1420.515,1379.309,7413.062,1924.540,3433.677,658.266,1628.079,1890.759,,,
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27,457bc283ff,2026-01-12,5039,fix(cbor): reject overflowing negative integers (#5039),3508.883,8077.291,16930.011,4305.982,3785.698,2378.693,1425.526,1366.111,7407.042,1929.142,3478.909,657.722,1636.304,1944.681,,,
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28,e3014f162a,2026-01-13,5052,Fix conversion to std::optional (#5052),3547.995,8140.052,17010.031,4321.914,3797.807,2385.856,1430.414,1386.202,7407.260,1930.403,3462.213,657.829,1629.579,1932.066,,,
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29,5ed07097fa,2026-01-13,5050,Fix -Wtautological-constant-out-of-range-compare in serializer (#5050),3544.136,8180.208,17033.209,4339.591,3799.779,2391.940,1427.870,1387.871,7368.765,1922.321,3454.938,659.367,1630.707,1959.722,,,
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30,25f48639c7,2026-01-23,5016,Reference tuple from json (#5016),3563.180,8209.037,17030.969,4388.675,3895.086,2392.088,1430.666,1393.853,7528.567,1934.347,3481.351,677.234,1645.418,1957.591,,,
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31,f8eee1bb79,2026-02-07,5071,Annotate unreachable comment-scanner switch paths to satisfy C26819 (#5071),3508.000,8128.750,16958.959,4315.235,3797.237,2371.963,1425.146,1374.867,7453.381,1930.211,3456.508,658.568,1629.188,1909.736,,,
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32,fd17b0889e,2026-05-08,5139,Remove nullptr safety check from sax_parse functions (#5139),3544.101,8033.021,16963.292,4334.102,3800.736,2382.583,1419.050,1361.745,7357.073,1907.153,3429.315,657.041,1618.815,1937.829,,,
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33,62f3b41b30,2026-05-08,5090,fix: treat single-element brace-init as copy/move instead of wrapping in array (#5074) (#5090),3550.323,8168.713,17060.031,4349.417,3794.110,2380.583,1416.822,1361.182,7369.651,1897.717,3466.731,659.297,1631.463,1941.905,,,
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34,4fad446897,2026-05-10,5162,docs: add IDs to @requirement tags to fix Doxygen autolinking (#5162),3545.440,8031.891,17069.448,4324.698,3802.862,2383.513,1422.768,1384.602,7325.776,1917.606,3469.787,659.011,1631.296,1940.370,,,
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35,a0a4e7cc0b,2026-05-13,5152,Add front methods to json_pointers (implements #4889) (#5152),3582.898,8215.010,17034.448,4345.515,3891.513,2396.572,1432.733,1395.714,7554.119,1934.008,3484.859,659.298,1642.314,1957.356,,,
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36,93e49decbd,2026-05-14,5167,Fix incomplete-type error in set_parents with ordered_json (#5167),3555.224,8147.771,17017.073,4320.846,3831.318,2386.750,1435.840,1385.578,7436.864,1927.483,3466.508,658.409,1632.724,1939.528,,,
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37,7192763f15,2026-05-14,5163,Fix compile error when using nlohmann ordered_map with WITH_DEFAULT macros (#5163),3520.675,8039.145,16892.291,4303.448,3769.198,2363.337,1410.030,1364.679,7380.797,1913.285,3437.278,660.130,1630.738,1943.235,,,
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38,5a05627b1f,2026-05-14,5169,:rotating_light: fix warning (#5169),3600.555,8160.854,16979.031,4324.070,3887.823,2389.157,1430.983,1387.106,7509.984,1912.601,3473.713,663.279,1652.982,1958.774,,,
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39,bb5404bb86,2026-05-15,5164,Fix GCC C++20 modules compilation #5103 (#5164),3543.823,8120.266,17015.395,4349.300,3794.880,2364.178,1414.408,1374.548,7484.218,1920.495,3444.266,699.326,1626.241,1954.688,,,
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40,b1bb9fce0c,2026-05-15,3929,Fix for printing long doubles bug in dump_float (#3929),3549.378,8089.891,16934.927,4313.310,3824.802,2386.958,1412.164,1385.425,7417.869,1930.513,3461.151,651.557,1618.735,1944.450,,,
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41,cba5dc0ed8,2026-05-16,4563,New macros for the named JSON convertor generation (#4563),3544.657,8168.182,16990.886,4327.688,3806.963,2370.975,1421.629,1390.206,7454.151,1919.284,3452.456,677.413,1623.622,1941.921,,,
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42,47202c804a,2026-05-18,5171,Add missing overload to ordered_map::find (#5171),3527.542,8168.312,17141.989,4409.456,3887.378,2397.007,1428.765,1387.033,7495.604,1935.710,3485.088,660.155,1648.977,1951.430,,,
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43,58cfecf7f7,2026-05-18,5151,Serialize enum (#5151),3521.302,8100.104,16805.489,4288.463,3763.971,2381.494,1408.713,1383.059,7328.261,1915.202,3440.372,648.726,1617.661,1922.608,,,
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44,584e6b1cfb,2026-05-22,5187,Fix: update() parent pointers not updated after recursive merge with JSON_DIAGNOSTICS (#5187),3550.639,8083.463,17055.198,4326.833,3804.257,2381.519,1432.039,1381.986,7377.844,1915.159,3460.750,656.873,1631.527,1940.953,,,
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45,02dfbea39d,2026-06-17,5209,added explicit instantiations of 'has_from_json' and 'has_to_json' for std_fs::path (#5209),3552.209,8215.474,17167.760,4338.404,3845.144,2398.026,1425.012,1387.629,7458.614,1931.388,3475.343,658.183,1644.329,1958.324,,,
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46,fc1df0b7db,2026-06-23,5172,:recycle: remove unnecessary if (#5172),3562.088,8175.531,17044.042,4336.583,3863.651,2404.695,1425.872,1389.434,7523.855,1914.128,3481.000,653.259,1639.515,1957.649,,,
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47,c5b2b26fdc,2026-06-29,5217,:memo: fix docs (#5217),3526.825,8052.307,17000.011,4343.963,3793.412,2388.194,1416.706,1374.177,7361.646,1904.008,3463.919,658.322,1627.765,1921.887,,,
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48,b7566c6293,2026-06-30,5161,Harden JSON_HAS_RANGES detection for incomplete C++20 ranges implementations (#5161),3538.995,8071.787,17120.751,4318.797,3772.445,2384.008,1421.440,1385.239,7419.292,1898.929,3431.466,647.948,1602.258,1928.644,,,
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49,adf78d3a76,2026-06-30,5215,Minor: unique_ptr template resolution workaround for MSVC (#5215),3550.380,8138.026,17036.802,4366.062,3842.430,2389.536,1426.658,1385.609,7428.787,1915.233,3467.188,658.332,1636.158,1942.556,,,
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50,272411c5e6,2026-06-30,5218,Overwork project infrastructure (#5218),3547.487,8087.250,16962.198,4341.969,3793.831,2387.509,1420.888,1381.072,7450.078,1930.003,3466.193,659.676,1631.329,1943.043,,,
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51,730b57775d,2026-07-01,5222,:bug: avoid assertion in patch (#5222),3539.912,8169.771,17027.229,4345.151,3790.753,2376.552,1421.263,1386.717,7399.985,1923.237,3455.722,653.609,1630.914,1934.028,,,
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52,ca49ab6123,2026-07-02,5223,Extend value to arrays when using JSON pointers (#5223),3550.341,8113.787,16951.313,4346.805,3793.097,2391.224,1409.695,1380.075,7374.073,1926.401,3458.438,659.382,1629.387,1941.306,,,
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53,8d7e0046f4,2026-07-02,5224,Add std::format and fmt support (#5224),3546.935,8170.406,16968.927,4346.906,3814.956,2387.612,1424.861,1386.542,7350.765,1900.376,3461.177,662.476,1633.858,1930.434,,,
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54,31dd15b258,2026-07-02,5221,Fix ambiguous static_cast (#5221),3551.945,8213.000,17131.271,4373.620,3845.763,2393.074,1438.633,1385.769,7471.146,1927.804,3486.568,662.015,1631.810,1958.901,,,
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55,eed1587000,2026-07-05,5234,Reconstruct lexer diagnostics lazily for seekable input (#120) (#5234),3145.909,5311.094,15381.843,4292.961,3851.260,1966.833,1422.598,1365.461,7443.276,1920.467,3467.060,702.832,1637.587,1905.758,,,
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56,83c87cb9e0,2026-07-05,5233,Read binary strings/blobs in bulk chunks with a memcpy fast path (#5233),3141.867,5259.485,15454.959,4326.664,3797.198,1987.623,1406.492,1372.765,7424.729,1899.726,2363.895,667.502,1630.097,1888.392,,,
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57,acf076a677,2026-07-06,5238,Fix ADL leak of nlohmann::detail through basic_json's default base class (#5238),3152.153,5277.073,15291.407,4338.828,3839.331,1995.524,1429.960,1365.917,7456.776,1907.928,2398.016,670.257,1627.590,1897.997,,,
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58,c05c5e229b,2026-07-07,5241,Add missing copyright notices to SBOM (#5241),3147.485,5268.865,15319.584,4321.823,3796.972,1981.167,1432.689,1371.264,7465.416,1918.083,2388.154,667.119,1630.745,1891.583,,,
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59,366f3d26e5,2026-07-08,5235,Replace snprintf with a branch-free writer for \uXXXX escapes (#5235),3127.641,5272.302,15425.239,4340.459,3850.357,1997.957,1459.603,1356.461,7509.703,1899.916,2366.966,668.383,1624.981,1889.145,,,
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60,f8e99e856c,2026-07-09,5248,Fix nvcc CUDA 12.0/12.1 C++20 ranges parse error (#3907) (#5248),3132.099,5226.375,15164.510,4301.901,3769.651,1967.647,1456.759,1365.810,7530.724,1908.635,2381.610,683.815,1616.699,1879.795,,,
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61,855f511db4,2026-07-09,5250,Fix stale Clang -Weverything suppression comments; drop -Wno-missing-noreturn (#5250),3126.792,5208.338,15352.520,4293.596,3800.544,1969.497,1458.601,1329.851,7372.849,1876.404,2368.894,662.173,1603.881,1874.673,,,
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62,d0a43141ea,2026-07-09,5253,Fix #3868: Remove operator!= to enable P2468R2 rewritten candidate synthesis (#5253),3165.182,5270.458,15479.031,4302.729,3845.646,1989.231,1474.135,1343.312,7443.282,1887.909,2392.523,670.395,1634.871,1894.474,,,
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63,b630f5e9c7,2026-07-10,5260,Fix container input_adapter SFINAE for lvalue-only ADL begin/end (#5260),3128.117,5263.807,15375.677,4330.544,3819.953,1982.196,1454.088,1339.062,7364.683,1877.699,2361.482,666.486,1616.514,1920.626,,,
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64,c60217e801,2026-07-11,5205,fix: support constructing json from C++20 range views (#4916) (#5205),3117.539,5206.552,15308.166,4320.513,3798.713,1983.458,1447.072,1350.950,7357.213,1875.632,2340.731,662.905,1633.357,1934.261,,,
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65,fe2bcc080f,2026-07-11,5266,Custom BinaryType direct assignment (#5266),3174.528,5284.562,15383.645,4328.120,3895.086,1996.913,1478.427,1355.569,7512.115,1899.236,2398.490,672.118,1642.910,1967.660,,,
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66,ca76c37650,2026-07-11,5265,Add iterator+sentinel tests and docs for binary deserializers (#5265),3134.265,5218.021,15352.521,4306.284,3791.612,1967.824,1451.953,1358.685,7508.828,1891.697,2377.848,665.474,1631.495,1934.907,,,
|
||||
67,c197feff81,2026-07-12,5268,Extend memcpy fast path to sized sentinels (e.g. std::counted_iterator) (#5268),3116.271,5207.146,15415.771,4272.443,3815.851,1984.966,1451.103,1341.093,7328.037,1865.385,2383.169,664.494,1617.967,1915.428,,,
|
||||
68,1c5a953de5,2026-07-19,5276,reject unpaired UTF-16 surrogates in wide-string input (#5276),3155.360,5299.631,15419.812,4302.089,3853.104,1987.259,1468.653,1349.665,7549.432,1911.365,2457.555,680.311,1653.282,1955.673,,,
|
||||
69,3565f40229,2026-07-20,5284,reject negative UBJSON/BJData string length (#5284),3170.456,5301.698,15404.416,4351.226,3893.594,1997.034,1470.907,1358.245,7491.480,1909.601,2401.384,671.260,1639.865,1963.899,,,
|
||||
70,9a3ebb9456,2026-07-23,5287,validate BSON document size against the bytes read (#5287),3157.646,5264.062,15305.271,4338.672,3839.643,1987.196,1461.356,1351.630,7444.791,1890.626,2398.503,665.262,1655.798,1930.268,,,
|
||||
71,8ec98e2c9e,2026-07-27,5313,adding cleanups to bson writer (#5313),3150.448,5268.948,15445.927,4308.612,3805.005,1989.643,1466.348,1349.591,7326.453,1895.842,2393.278,708.164,1644.025,1946.652,,,
|
||||
72,2e23687092,2026-07-28,5314,to_bson() silently emits corrupt documents when a length exceeds INT32_MAX (#5314),3146.534,5254.547,15445.250,4304.008,3798.620,1986.260,1459.735,1345.534,7517.651,1903.996,2395.155,674.344,1644.565,1952.682,,,
|
||||
73,868506dcc0,2026-07-30,5335,Fix CBOR half-float assertion bounds (#5335),3167.086,5267.068,15397.979,4351.011,3883.135,2003.345,1468.939,1360.483,7455.230,1909.055,2406.305,679.942,1643.646,1945.639,,,
|
||||
74,dd24e2dffd,2026-07-30,5332,check all BSON reads and add an EOF check for booleans (#5332),3138.315,5284.833,15399.166,4310.513,3847.630,1980.682,1464.104,1344.108,7445.146,1901.512,2400.532,670.850,1635.196,1900.946,,,
|
||||
75,fd72ecfc8c,2026-07-31,5301,validate ndarray element types in write_bjdata_ndarray (#5301),3164.662,5262.141,15399.010,4287.271,3849.318,1988.186,1460.688,1353.767,7458.380,1893.669,2398.485,668.466,1644.018,1921.615,,,
|
||||
76,bc48951128,2026-07-31,5323,Fix UBJSON high-precision floating-point overflow handling (#5323),3155.628,5289.864,15474.375,4324.253,3888.966,2015.068,1477.846,1354.622,7480.730,1905.566,2415.428,668.997,1641.776,1911.819,,,
|
||||
77,d94cbd99dc,2026-07-31,5274,reject CBOR array/map length equal to the indefinite-length marker (#5274),3144.041,5272.193,15466.980,4338.735,3848.849,1999.231,1459.129,1358.119,7507.307,1901.807,2394.972,667.016,1635.960,1899.878,,,
|
||||
78,2222d386c9,2026-07-31,5339,fix: check CBOR tagged subtype reads (#5339),3095.768,5137.792,15064.146,4258.977,3755.229,1965.900,1454.890,1338.066,7399.068,1883.624,2358.193,660.190,1618.172,1939.713,,,
|
||||
79,585929bff9,2026-08-03,5289,Fix Clang deprecation warning for json_pointer operator== with ordered_json (#5289),3142.341,5259.360,15258.271,4275.479,3807.672,1969.704,1453.688,1337.633,7451.037,1879.447,2364.966,661.560,1635.617,1945.709,,,
|
||||
80,5f121d8c50,2026-08-03,5336,avoid sign extension in char_traits<signed char>::to_int_type (#5336),3145.000,5264.880,15441.521,4269.632,3796.781,1983.497,1440.810,1325.232,7427.750,1880.047,2361.899,663.772,1621.595,1912.378,,,
|
||||
81,68f0722a19,2026-08-03,5342,remove discarded array from parent object in end_array (#5342),3161.273,5269.907,15312.469,4335.433,3840.510,1995.965,1465.745,1355.934,7474.901,1895.483,2401.197,657.397,1634.791,1901.902,,,
|
||||
82,dca9d49a33,2026-08-05,5348,reject out-of-range code points in UTF-32 wide-string input (#5348),3119.753,5210.979,15209.260,4273.984,3799.034,1995.297,1459.456,1342.982,7431.646,1891.478,2370.364,653.618,1633.585,1882.753,,,
|
||||
83,9a091d2b82,2026-08-05,5362,Do not write BJData ndarrays whose size overflows std::size_t (#5362),3137.381,5257.312,15286.084,4308.500,3805.325,1995.140,1468.138,1354.729,7510.088,1893.036,2384.577,659.394,1628.260,1890.245,,,
|
||||
84,d5647e6a3b,2026-08-05,5355,Resolve the TODO(niels) in get_ubjson_string (#5355),3121.278,5249.927,15246.011,4292.737,3800.490,1967.087,1443.762,1333.226,7368.953,1862.131,2347.852,644.647,1623.909,1889.958,,,
|
||||
85,bacdabd176,2026-08-05,5361,Fix start_pos() for strings containing escape sequences (#5361),3114.653,5251.619,15253.907,4331.818,3786.156,1960.676,1442.388,1330.247,7354.724,1863.306,2351.588,650.781,1623.543,1886.671,,,
|
||||
86,1c136a66c4,2026-08-06,5363,Move the CBOR doc block to the function it describes (#5363),3124.274,5209.615,15411.897,4293.320,3812.156,1982.854,1457.653,1345.680,7422.343,1884.848,2387.050,656.076,1627.620,1878.737,,,
|
||||
87,6285225fd0,2026-08-12,5211,Fix integer comparison bug (#5211),3159.557,5291.323,15395.395,4329.836,3867.200,1989.476,1456.052,1359.795,7526.860,1879.642,2396.137,659.077,1638.176,1900.416,,,
|
||||
88,b5378e8deb,2026-08-19,5331,Fix CBOR tag handlers not recognizing tags 0-5 and 21-23 (#5331),3172.476,5239.812,15479.917,4295.539,3871.289,2003.439,1473.447,1343.742,7516.875,1888.412,2400.572,645.588,1641.621,1886.531,,,
|
||||
89,2f025f401e,2026-08-25,5380,Throw other_error.502 when UBJSON use_type is set without use_size (#5380),3155.873,5190.312,15144.406,4286.388,3793.805,1968.199,1442.240,1340.929,7373.610,1860.543,2370.570,648.906,1631.207,1893.750,,,
|
||||
90,35705d79d8,2026-08-28,5414,Fix update(merge_objects=true) throwing on primitive-to-object merge (#5414),3169.029,5252.578,15387.292,4340.690,3893.646,1979.616,1472.286,1361.543,7491.302,1903.909,2401.404,659.396,1641.697,1912.409,,,
|
||||
91,137a40b9aa,2026-09-05,5459,Compare integers with floats exactly instead of widening the integer (#5459),3134.229,5259.349,15404.541,4300.146,3846.646,1992.155,1467.919,1351.774,7467.146,1887.255,2391.467,660.347,1631.735,1891.751,,,
|
||||
92,3c875683a5,2026-09-05,5461,Make diff() linear when an array shrinks (#5461),3141.068,5259.000,15271.166,4319.659,3797.088,1983.450,1455.354,1354.676,7444.860,1891.687,2389.333,657.163,1632.998,1887.016,,,
|
||||
93,09b6b6b5ba,2026-09-05,5455,Fix to_bjdata() emitting unparsable output when _ArraySize_ is not an array (#5455),3161.542,5253.047,15311.718,4291.388,3834.264,1992.744,1472.685,1357.680,7409.479,1889.287,2389.501,698.680,1628.237,1888.705,,,
|
||||
94,faa35cc647,2026-09-09,5484,Skip integer conversion in accept()/SAX validation when the value is unused (#5484),3103.654,5222.453,15458.573,4215.765,3804.320,1935.161,1468.660,1353.499,7452.052,1883.191,2383.524,654.441,1631.700,1885.664,,,
|
||||
95,6d86cc0f6b,2026-09-09,5490,Speed up whitespace skipping in the lexer (#5490),3181.328,5276.318,15307.312,4262.771,3877.401,1977.062,1465.196,1356.119,7594.177,1906.814,2388.615,684.926,1636.950,1893.526,,,
|
||||
96,c05347dd54,2026-09-09,5475,Undefine the four JSON_HEDLEY_* macros that leak after including json.hpp (#5475),3147.932,5156.625,15347.990,4217.505,3871.812,1982.807,1458.787,1354.934,7639.328,1879.823,2370.342,674.625,1637.257,1903.903,,,
|
||||
97,d6660cf718,2026-09-09,5485,Route hand-rolled diagnostic pragmas through Hedley (#5485),3116.151,5215.531,15257.499,4189.979,3835.023,1974.111,1459.363,1342.996,7553.802,1887.698,2379.999,669.934,1635.350,1877.492,,,
|
||||
98,c9477ccf91,2026-09-09,5496,Throw when JSON Patch remove's target path resolves through a primitive or null parent (#5496),3138.841,5258.401,15315.417,4201.008,3874.682,1967.630,1446.393,1335.060,7542.708,1870.111,2390.141,668.484,1634.138,1886.981,,,
|
||||
99,8c38e270b5,2026-09-09,5497,Reject JSON Patch move when from is a proper prefix of path (#5497),3183.820,5280.000,15346.969,4222.164,3839.596,1970.753,1470.428,1351.838,7515.344,1895.809,2389.731,673.696,1633.247,1889.546,,,
|
||||
100,a316738cfa,2026-09-09,5471,Add JSON_HEDLEY_WARN_UNUSED_RESULT to the current accept() overloads (#5471),3175.891,5281.302,15397.062,4240.576,3934.333,1981.765,1475.890,1353.387,7625.104,1896.181,2401.097,669.729,1646.133,1895.638,,,
|
||||
101,c9f1d2d646,2026-09-09,5477,Broaden JSON_HEDLEY_WARN_UNUSED_RESULT coverage to pure query functions (#5477),3171.706,5286.880,15430.844,4264.242,3880.943,1979.990,1472.289,1357.283,7569.854,1904.026,2407.487,671.673,1641.521,1889.053,,,
|
||||
102,8e26b9d4b3,2026-09-09,5495,Make contains(json_pointer) return false instead of throwing on unrepresentable array-index tokens (#5495),3163.789,5240.755,15337.698,4226.154,3880.956,1971.912,1475.322,1357.125,7632.281,1904.060,2401.190,678.863,1638.371,1903.385,,,
|
||||
103,b17c272f46,2026-09-09,5472,Reserve capacity in from_json() object conversion when the target container supports it (#5472),3152.899,5257.645,15401.000,4210.846,3885.123,1989.159,1476.637,1359.851,7639.396,1898.981,2408.243,670.075,1633.528,1894.086,,,
|
||||
104,3e2de32226,2026-09-10,5516,Remove unused iomanip include (#5516),3141.349,5253.657,15364.074,4203.969,3847.620,1968.422,1455.035,1352.754,7582.494,1882.051,2371.814,663.504,1630.172,1870.223,,,
|
||||
105,d69fb8654d,2026-09-10,5501,Return the parsed value by move from from_cbor() and friends (#5501),3133.485,5231.662,15309.926,4183.200,3835.662,1971.125,1462.447,1349.563,7479.136,1904.202,1595.991,661.519,1630.278,1883.994,,,
|
||||
106,4a93aa4e2f,2026-09-10,5283,"Speed up parsing of contiguous input (numbers, strings, UTF-8) (#5283)",1963.879,4221.308,11609.531,3278.497,3857.880,927.779,1483.726,1357.793,7483.343,1906.916,1481.419,676.438,1643.746,1895.551,,,
|
||||
107,bfb07786cd,2026-09-10,5473,Fix to_bjdata() silently truncating out-of-range _ArrayData_ elements (#5473),1941.894,4204.971,11726.688,3264.055,3808.784,923.797,1453.071,1351.760,7458.125,1891.470,1473.508,662.164,1633.043,1888.548,,,
|
||||
108,ff80ed3295,2026-09-11,5285,"Speed up dump(), and keep it from overflowing the stack (#5285)",1939.289,4175.541,11781.291,3233.302,3816.101,914.071,441.200,540.473,6895.041,852.214,1478.197,656.635,1632.675,1885.303,,,
|
||||
109,da42a627dc,2026-09-11,5449,Stop dump() from heap-allocating its output adapter per call (#5449),1937.658,4200.966,11639.198,3235.493,3827.695,909.901,448.948,537.008,6909.036,839.027,1479.968,659.210,1643.621,1878.065,,,
|
||||
110,1dc1d09fc6,2026-09-11,5457,Do not search a container for the value the callback rejected (#5457),1937.459,4140.078,11576.803,3271.838,3845.193,924.316,450.148,539.031,6848.776,844.624,1470.333,671.563,1645.624,1900.347,,,
|
||||
111,fae364db24,2026-09-11,5458,Move the scanned string into the value instead of copying it (#5458),1986.146,4110.787,11757.157,3150.932,3830.550,918.517,442.629,539.606,6913.104,843.920,1417.037,655.259,1628.224,1892.991,,,
|
||||
112,dd50f0eb16,2026-09-11,5502,Stop CBOR indefinite-length strings from recursing per chunk (#5502),1987.853,4033.182,11613.834,3116.378,3841.164,915.943,442.366,539.480,6864.130,836.458,1431.035,656.146,1599.574,1885.858,,,
|
||||
113,4bb2de8cc5,2026-09-11,5503,Reject a nested BJData ndarray dimension vector where it is read (#5503),1981.298,4086.276,11569.240,3141.539,3829.870,923.087,444.038,539.863,6800.724,835.434,1429.637,655.448,1628.999,1879.300,,,
|
||||
114,44f8ec30e9,2026-09-11,5504,Bound UBJSON optimized arrays of a valueless type (#5504),2005.265,4092.265,11730.198,3130.635,3863.992,925.033,448.222,542.323,6893.078,849.901,1437.855,662.171,1638.306,1896.324,,,
|
||||
115,0dd8ca9023,2026-09-11,5505,Read MessagePack containers without recursing per nesting level (#5505),2019.983,4105.305,11862.979,3142.581,3891.601,927.092,447.942,543.936,6939.963,845.634,1442.889,656.578,1637.512,1897.815,,,
|
||||
116,91ab3e81f5,2026-09-11,5506,Read CBOR containers and tags without recursing per nesting level (#5506),1986.334,4039.961,11554.094,3118.761,3783.101,912.504,440.410,534.894,6831.943,834.661,1439.061,655.287,1615.619,1869.912,,,
|
||||
117,a14619b354,2026-09-11,5507,Read UBJSON and BJData containers without recursing per nesting level (#5507),2011.959,4095.868,11782.688,3135.264,3873.604,926.014,447.638,541.304,6905.838,846.051,1468.512,664.161,1629.083,1898.772,,,
|
||||
118,0452641c18,2026-09-11,5508,Read BSON documents without recursing per nesting level (#5508),1974.160,4043.887,11662.938,3095.011,3832.744,916.007,439.914,534.149,6904.453,835.615,1450.792,648.298,1616.917,1874.133,,,
|
||||
119,aa391dc0a5,2026-09-11,5520,Fix two develop CI regressions: dump() nodiscard warning and binary-reader const-correctness (#5520),2003.010,4068.010,11771.364,3137.266,3825.247,924.668,442.416,539.478,6847.083,841.996,1460.659,649.378,1633.738,1885.897,,,
|
||||
120,a50c2537eb,2026-09-12,5476,Reserve capped array capacity in json_sax_dom_parser::start_array() for definite-length binary arrays (#5476),1986.488,4063.883,11588.333,3077.995,3827.479,908.419,440.959,539.114,6806.177,833.555,1452.851,662.422,1627.995,1915.388,,,
|
||||
121,c0b2878a44,2026-09-13,5493,Swap diagnostic positions in basic_json::swap() (#5493),2010.881,4081.057,11734.730,3130.919,3882.258,925.490,450.092,542.953,6925.188,848.486,1480.051,698.636,1643.508,1933.941,,,
|
||||
122,1da2f68992,2026-09-14,5522,Only reserve array capacity if the array type supports it (#5522),1972.122,4048.622,11775.062,3107.938,3803.528,909.385,441.204,535.885,6793.927,842.843,1446.330,658.787,1619.239,1899.164,,,
|
||||
123,6487678bc5,2026-09-15,5464,Fix swap(array_t&)/swap(object_t&) to update parent pointers under JSON_DIAGNOSTICS (#5464),2023.028,4116.169,11737.438,3165.172,3893.266,924.912,448.959,541.529,6970.438,852.039,1483.231,689.631,1635.240,1937.356,,,
|
||||
124,c72f37a40d,2026-09-15,5443,Support custom object/array types and improve template parameter handling (#5443),2001.617,4076.547,11666.583,3109.756,3918.206,923.197,450.592,542.266,6901.703,846.558,1468.284,660.116,1641.586,1905.840,,,
|
||||
125,502e9d66f6,2026-09-16,5479,Fix to_bjdata() emitting the Draft-3-only 'B' marker in default Draft-2 mode (#5479),1970.935,4018.060,11445.500,3079.409,3809.050,910.459,444.217,539.291,6851.407,833.755,1444.697,698.040,1626.601,1889.024,,,
|
||||
126,c41152e620,2026-09-16,5494,Fall back to plain-object encoding when to_bjdata()'s _ArrayType_ annotation is not a string (#5494),1979.481,4054.688,11734.292,3085.542,3819.351,916.992,445.126,539.870,6853.005,833.190,1457.166,665.391,1629.586,1888.734,,,
|
||||
127,e564136c22,2026-09-22,5465,Make diff() account for member order in ordered_json objects (#5465),1970.519,4063.744,11605.198,3087.497,3848.867,915.695,447.051,539.711,6835.172,841.402,1452.004,664.560,1640.751,1890.473,,,
|
||||
128,e485441123,2026-09-22,5466,Restore a duplicate key's prior value when the callback rejects its new value (#5466),2012.920,4099.265,11796.895,3156.818,3913.812,931.464,451.403,541.419,6981.041,846.536,1469.521,704.138,1633.327,1905.709,,,
|
||||
129,a2b19d6158,2026-09-22,5467,Honor allow_exceptions=false for excessive array/object size (out_of_range.408) (#5467),1996.478,4084.422,11734.208,3129.099,3850.854,923.499,446.555,539.379,6949.427,842.029,1453.166,694.200,1631.133,1888.865,,,
|
||||
130,d2c1a6a272,2026-09-22,5468,"Reject array insert(pos, first, last) iterators not pointing into an array (#5468)",1983.767,4066.651,11618.667,3128.505,3848.427,914.900,447.603,541.973,6915.265,844.307,1458.762,677.699,1638.789,1892.443,,,
|
||||
131,0b20b7e622,2026-09-22,5469,Reject MessagePack/BSON binary subtypes that don't fit their wire format (#5469),2010.548,4097.476,11681.218,3121.010,3866.146,925.619,448.533,540.786,6957.000,843.349,1463.518,658.302,1630.857,1902.522,,,
|
||||
132,1054b2097e,2026-09-23,5286,Speed up binary writing: value-type output sink + byte-swap number encoding (#5286),1989.739,4101.393,12034.438,3157.240,3853.987,910.115,449.084,555.970,6884.386,864.526,1471.905,656.635,1661.806,1926.233,,,
|
||||
133,ed513715a8,2026-09-24,5534,Document that a NUL byte in the input is treated as end of input (#5534),2016.236,4104.763,11906.323,3141.138,3936.240,916.611,455.397,562.053,6987.917,871.110,1475.622,657.877,1676.934,1936.557,,,
|
||||
134,56b3ee566c,2026-09-24,5389,Fix stack overflow when copying a deeply nested value (#5387) (#5389),1998.356,4051.206,11660.865,3101.107,3834.672,910.072,452.943,544.464,6908.974,849.212,1460.691,638.644,1650.749,1914.423,,,
|
||||
135,918da64657,2026-09-24,5542,Keep BJData ndarray annotations that would not survive a round trip as objects (#5542),2003.009,4042.969,11517.375,3095.122,3815.360,908.444,448.415,539.423,6911.041,840.044,1449.543,671.530,1651.709,1908.408,,,
|
||||
136,8699de3064,2026-09-24,5555,Stop allocating the BJData excluded-marker list per container (#5555),2001.718,4071.333,11686.427,3122.065,3796.757,900.895,447.123,539.918,6860.765,844.752,1444.435,646.608,1644.943,1879.295,,,
|
||||
137,2e91641de2,2026-09-24,5544,"Test JSON_BRACE_INIT_COPY_SEMANTICS for real, and fix one-element tuples under it (#5544)",2004.785,4083.914,11662.270,3119.602,3917.914,922.465,454.869,547.631,6987.234,853.010,1469.612,649.946,1672.246,1913.098,,,
|
||||
138,7c90ec2323,2026-09-24,5546,Hash deeply nested values without recursing per nesting level (#5546),1952.912,4071.159,11594.927,3117.497,3793.052,900.729,444.245,539.787,6854.406,841.264,1457.530,643.139,1638.578,1890.482,,,
|
||||
139,4daca40d7b,2026-09-24,5547,Merge deeply nested objects without recursing per nesting level (#5547),2008.226,4104.399,11619.542,3148.604,3918.175,921.207,457.191,547.553,6942.265,855.352,1464.974,651.924,1665.232,1915.869,,,
|
||||
140,01b53c8c15,2026-09-25,5552,Keep JSON_DIAGNOSTICS parent pointers of ordered_json members after erase() and update() (#5552),1979.354,4061.378,11603.480,3098.586,3875.258,919.125,455.911,546.269,6940.026,849.511,1461.751,648.841,1660.978,1917.254,,,
|
||||
141,abbe52d6de,2026-09-25,5344,Add JSON_PRECISE_STREAM_POSITION to leave the character that terminates a number in the stream (#5344),2001.170,4081.617,11653.531,3131.331,3876.208,915.153,453.436,546.720,6971.864,848.900,1463.182,647.946,1662.943,1906.246,,,
|
||||
142,02dd3e67f2,2026-09-25,5390,Fix stack overflow and exponential runtime when comparing nested values (#5390),1987.861,4074.039,11596.000,3161.284,3901.497,919.541,447.553,543.948,6910.162,845.668,1455.759,664.224,1652.074,1930.575,,,
|
||||
143,465407f3ce,2026-09-25,2818,Improve error message for const fields (#2818),1975.274,4118.565,11863.448,3130.541,3880.764,910.767,452.904,545.363,6906.890,843.118,1459.728,645.770,1654.265,1934.900,,,
|
||||
144,632a5812a8,2026-09-25,5272,Support zero-member types in NLOHMANN_DEFINE_TYPE_* macros (#4041) (#5272),1963.323,4021.526,11747.959,3102.006,3784.896,904.545,444.355,543.748,6840.604,841.416,1438.306,639.223,1649.816,1930.274,,,
|
||||
145,d19f7f5dce,2026-09-25,5185,Fix BSON conformance issue (#5185),1958.606,4048.536,11541.011,3086.805,3817.875,900.452,446.001,544.071,6824.323,837.078,1971.245,641.271,1651.209,1934.647,,,
|
||||
146,c60a0bc336,2026-09-25,5573,Allocate the deep copy's key scratch space with the provided allocator (#5573),1965.216,4021.459,11630.855,3074.078,3807.258,902.782,444.394,542.562,6919.969,840.942,1975.668,645.827,1637.429,1918.607,,,
|
||||
147,1e44262091,2026-09-25,5560,Make JSON_STRICT_NUL_HANDLING part of the ABI tag (#5560),1961.862,4069.617,11594.083,3117.500,3817.758,909.186,448.820,544.420,6845.802,844.016,1977.909,645.864,1651.269,1937.217,,,
|
||||
148,95e9a5931c,2026-09-25,5553,"Write BSON in linear time, without recursing per nesting level (#5553)",1965.832,4033.394,11589.364,3120.422,3792.091,905.110,446.984,543.328,6794.244,844.943,1991.659,640.188,1647.675,1928.562,,,
|
||||
149,fe4a544c7e,2026-09-27,5515,handled when size exceed uint32 (#5515),1998.244,4047.208,11755.209,3091.776,3815.000,908.733,447.990,546.295,6903.084,850.946,1993.351,645.487,1654.343,1933.385,,,
|
||||
150,4fa95d9810,2026-09-27,5583,Remove unreachable branches from the binary writer (#5583),1983.323,4038.331,11666.480,3092.841,3844.935,910.149,449.697,541.110,6840.583,830.604,1979.750,653.542,1650.670,1928.883,,,
|
||||
151,6178982b8d,2026-09-27,5582,Compare unordered objects by key below the nesting bound (#5582),1971.706,4073.498,11600.646,3132.700,3830.323,910.231,448.982,538.812,6836.770,846.149,2007.607,657.180,1653.089,1934.675,,,
|
||||
152,f7972970a4,2026-09-27,5584,Throw instead of writing MessagePack lengths beyond UINT32_MAX (#5584),1969.417,4013.021,11602.447,3083.552,3842.495,904.223,447.444,542.170,6862.735,839.628,2000.766,655.034,1653.006,1939.922,,,
|
||||
153,6bd106893a,2026-09-27,5559,Fix CBOR tag handling in cbor_tag_handler_t::store for non-binary items (#5559),1969.250,4034.693,11691.500,3119.171,3827.860,916.053,455.026,542.577,6886.360,839.718,2012.919,653.031,1651.090,1931.698,,,
|
||||
154,1e101ecac1,2026-09-27,2998,Add BON8 support (#2998),1975.804,4082.375,11658.542,3192.828,3758.141,907.029,444.920,556.470,6844.698,849.276,1977.153,649.181,1645.306,1920.836,,,
|
||||
155,9e1a09eec0,2026-09-28,5594,Name the key type when rejecting non-string CBOR/MessagePack map keys (#5594),2006.582,4151.784,11788.532,3156.156,3845.052,915.647,454.027,557.846,6814.282,864.094,2021.072,654.095,1663.051,1947.078,,,
|
||||
156,fc03b9912e,2026-09-28,5597,"Look up the locale decimal point at conversion time, not lexer construction (#5597)",2020.431,4172.916,12716.958,3196.958,3909.774,910.001,449.314,547.334,6900.968,852.306,2048.019,665.843,1696.937,1982.586,,,
|
||||
157,5b9ffae8bb,2026-09-30,5616,Move the float conversion chain out of the lexer (#5616),1992.332,4167.328,12638.573,3212.515,3842.885,906.649,446.941,539.674,6952.672,839.042,2021.057,695.813,1684.689,1967.216,,,
|
||||
158,d268eaa693,2026-09-30,5617,Convert floats with Eisel-Lemire when std::from_chars is unavailable (#5617),1987.608,4086.125,11507.062,3170.013,3830.425,898.856,445.077,542.854,6919.568,839.210,2021.918,666.925,1701.466,1951.211,,,
|
||||
159,65af260117,2026-09-30,5609,Move instead of deep-copy ordered_json values when an object grows (#5609),1998.981,4134.057,11592.855,3192.779,3863.005,904.702,446.575,539.685,6850.886,840.845,2035.646,680.331,1682.755,1968.744,,,
|
||||
160,6a8a7735ed,2026-09-30,5614,Do not throw in contains() for an empty array reference token (#5614),2008.447,4144.024,11612.176,3165.468,3842.060,905.045,443.941,539.755,6846.042,846.248,1998.713,669.752,1684.717,1953.487,,,
|
||||
161,0050d0f7a4,2026-09-30,5637,Share one nesting depth limit between all bounded descents (#5637),2021.078,4170.581,11589.886,3224.963,3937.021,906.411,448.033,541.177,6911.391,848.641,2040.978,670.005,1703.593,1984.639,,,
|
||||
162,68beba727c,2026-09-30,5679,Fix from_json() for enums with underlying type bool (#5679),1986.468,4139.033,11632.833,3201.351,3798.006,888.464,438.471,535.903,6843.110,836.030,1996.109,685.053,1672.430,1940.598,,,
|
||||
163,fc4c9c3446,2026-09-30,5680,Fix clear() to also reset the subtype of a binary value (#5680),1972.561,4094.867,11540.157,3155.722,3833.925,893.243,445.764,539.739,6848.562,843.068,2016.293,664.788,1685.759,1965.342,,,
|
||||
164,678fd3017b,2026-09-30,5681,Fix element path for map/unordered_map JSON_DIAGNOSTICS errors (#5681),2014.783,4164.471,11563.614,3219.865,3891.917,892.727,445.945,542.044,6900.807,844.422,2034.323,669.901,1688.051,1981.601,,,
|
||||
165,6d7845d207,2026-09-30,5683,Fix deprecated json_pointer/string operator== warning in value() (#5683),1965.197,4105.789,11501.364,3157.544,3800.289,898.122,445.399,539.685,6900.433,834.541,2000.133,652.354,1670.945,1960.876,,,
|
||||
166,42f89e3130,2026-09-30,5684,Let to_json(std::optional<T>) propagate exceptions from T's to_json (#5684),2016.899,4156.430,11476.489,3216.315,3895.245,908.714,444.300,541.764,6923.422,839.459,2018.934,672.859,1689.306,1987.428,,,
|
||||
167,6218aa212b,2026-09-30,5687,Throw std::length_error for operator[](SIZE_MAX) instead of corrupting the array (#5687),1989.158,4149.156,11547.229,3193.015,3845.187,905.308,446.389,541.290,6853.266,843.028,2037.245,661.213,1681.390,1966.649,,,
|
||||
168,1151826508,2026-09-30,5691,Take diff()'s fast path unless the object type reorders members (#5691),1991.280,4147.341,11570.312,3171.182,3847.333,904.510,441.250,539.803,6885.776,836.303,2018.693,665.307,1685.990,1970.057,,,
|
||||
169,e444a66276,2026-09-30,5693,Copy values before inserting an initializer list into an array (#5693),2000.774,4175.507,11546.979,3189.357,3841.169,897.455,442.384,539.493,6839.688,836.213,2014.519,667.390,1685.418,1968.991,,,
|
||||
170,bfea6f36d3,2026-09-30,5694,Fix to_msgpack() reading the inactive number union member (#5694),1997.465,4144.279,11549.781,3224.287,3855.120,899.475,441.995,539.924,6903.776,839.550,2019.396,664.487,1688.249,1954.211,,,
|
||||
171,5b11a0282c,2026-09-30,5697,Exchange the CustomBaseClass subobject in basic_json::swap() (#5697),1987.983,4074.349,11483.114,3174.632,3841.604,893.256,438.279,535.885,6866.641,834.328,1996.396,660.828,1676.300,1936.210,,,
|
||||
172,44a88d85be,2026-09-30,5698,Fix NLOHMANN_JSON_SERIALIZE_ENUM_STRICT's from_json message (#5698),1972.237,4125.945,11373.917,3158.716,3810.039,890.097,438.075,534.577,6867.432,842.045,2028.150,664.206,1681.353,1936.231,,,
|
||||
173,bfe0f32d71,2026-09-30,5699,Fix std::terminate and null pointer access in input_stream_adapter (#5699),2014.371,4159.779,11667.416,3200.425,3876.135,911.716,448.788,543.198,6932.657,852.397,2056.197,668.764,1699.573,1984.479,,,
|
||||
174,4bb1b14b06,2026-09-30,5702,Trim the compiler-appended NUL from wide/UTF string literals too (#5702),1979.723,4105.685,11603.562,3180.932,3846.698,906.188,443.969,534.534,6837.479,840.588,2006.043,654.851,1672.289,1965.408,,,
|
||||
175,5bd766aa50,2026-09-30,5703,Move to_bson's binary subtype check into calc_bson_sizes (#5703),1999.606,4183.386,11588.646,3192.771,3844.425,900.169,446.795,541.406,6888.114,847.107,2022.637,663.480,1686.702,1974.777,,,
|
||||
176,6ae17630a4,2026-09-30,5705,"Reject integral keys for contains(), find(), and count() at compile time (#5705)",2000.405,4157.120,11551.656,3197.417,3891.646,903.558,448.544,541.553,6914.203,848.561,2042.578,663.661,1691.910,1974.341,,,
|
||||
177,7fd6895788,2026-09-30,5706,Hide a discarded container's content from the parser callback (#5706),1971.987,4075.362,11463.219,3164.909,3797.453,889.534,443.974,535.026,6857.323,835.793,2025.343,651.970,1687.670,1951.428,,,
|
||||
178,66877675b1,2026-09-30,5719,"Check the iterator range for binary values in basic_json(first, last) (#5719)",1970.369,4104.886,11534.635,3168.601,3796.291,897.271,444.655,538.917,6826.990,842.445,2016.962,650.099,1673.940,1953.693,,,
|
||||
179,2ea6d8c127,2026-09-30,5720,Require the found key to equal the looked-up key when comparing objects (#5720),2015.556,4188.886,11567.125,3251.890,3863.818,903.970,448.691,540.422,6912.255,843.774,2044.479,653.832,1676.634,1951.959,,,
|
||||
180,67435c9c7e,2026-09-30,5721,Give a deep copy its type only after its container exists (#5721),1994.257,4160.658,11600.553,3218.367,3880.128,900.769,449.260,541.607,6899.448,841.635,2043.909,666.759,1694.646,1974.861,,,
|
||||
181,6fc0d501f3,2026-09-30,5610,Move the user-defined string literals to <nlohmann/json_literals.hpp> and add JSON_NO_AUTOMATIC_UDLS (#5610),2021.715,4187.888,11647.594,3209.388,3925.060,911.591,450.961,544.303,6975.265,845.109,2049.853,670.295,1697.019,1987.428,,,
|
||||
182,fdcc569eee,2026-09-30,5692,Use only documented StringType members in json_pointer (#5692),1965.264,4147.273,11378.188,3159.364,3787.758,889.399,447.397,535.062,6809.698,835.116,2015.202,656.241,1689.072,1955.238,,,
|
||||
183,6a073dbae4,2026-09-30,5695,Give operator>> a strong exception-safety guarantee (#5695),2010.979,4211.982,11698.218,3205.401,3897.172,898.499,445.961,545.225,6898.870,847.042,2051.316,664.716,1706.401,1981.247,,,
|
||||
184,3b6ae43c53,2026-09-30,5598,Add JSON_DISABLE_TUPLE_REFERENCE_CONVERSION to fix std::tuple conversions (#5598),2025.122,4195.468,11682.199,3204.529,3924.068,904.766,448.209,544.669,7041.276,849.103,2047.488,665.592,1695.987,1984.755,,,
|
||||
185,7d7055ec50,2026-09-30,5723,Fix stack overflow converting deep values between specializations (#5723),1985.310,4117.099,11457.052,3157.591,3832.175,895.910,442.225,535.237,6864.375,833.653,2001.760,679.826,1674.819,1956.998,,,
|
||||
186,35802e78d6,2026-09-30,5735,Remove dead Makefile targets; document macro_builder; tidy serve_header (#5735),2004.498,4163.065,11590.594,3184.810,3902.229,906.494,447.394,539.542,6923.969,845.596,2044.457,666.187,1692.019,1977.030,,,
|
||||
187,c261578431,2026-09-30,5730,Deduplicate binary reader/writer helpers and fix stale comments (#5730),1968.723,4154.789,11441.718,3160.367,3870.578,889.545,443.139,535.314,6850.886,837.281,2024.650,660.842,1691.628,1978.000,,,
|
||||
188,1d675cdb46,2026-09-30,5733,Fix CI jobs that check less than they claim; move arm64 to GitHub (#5733),1995.704,4206.185,11691.125,3227.622,3966.104,909.748,449.770,541.566,6951.938,852.506,2009.592,663.701,1686.265,1983.285,,,
|
||||
189,a32f61eb98,2026-09-30,5678,Fix update() and merge_patch() when the argument is *this or one of its members (#5678),2014.810,4157.101,11636.135,3210.326,3924.659,899.344,448.133,541.371,6913.401,841.487,2038.263,667.515,1697.503,1980.686,,,
|
||||
190,18dd5663b0,2026-10-01,5548,Diff deeply nested values without recursing per nesting level (#5548),1990.931,4152.500,11469.697,3204.740,3985.593,903.248,448.981,540.974,6929.740,847.493,2040.504,665.352,1698.903,1981.438,,,
|
||||
191,3926fcaac3,2026-10-01,5729,"Deduplicate serializer dump code; fix stale includes, docs, and lint (#5729)",1999.556,4178.489,11581.000,3208.657,3876.755,891.669,452.445,538.525,6893.078,846.721,2042.010,662.154,1689.653,1975.503,,,
|
||||
192,cff0a61369,2026-10-01,5731,Share DOM SAX position handling; fix stale parser and lexer comments (#5731),2017.231,4112.604,11588.291,3157.047,3890.343,902.329,458.713,539.539,7020.568,847.995,2073.873,654.562,1696.823,1978.381,,,
|
||||
193,e400780533,2026-10-01,5745,Re-amalgamate single_include (#5745),1980.338,4100.659,11418.854,3166.896,3835.432,885.298,452.886,538.053,6888.203,824.666,2031.410,650.846,1668.952,1949.107,,,
|
||||
194,6aec1a085f,2026-10-02,5677,Report BON8 input that ends after a UTF-8 lead byte as truncated (#5677),2003.321,4099.066,11614.364,3159.029,3849.857,899.995,459.542,539.436,6904.474,843.221,2071.503,652.303,1685.702,1972.556,,,
|
||||
195,4d46bce4e1,2026-10-02,5750,Fix CI on develop (#5750),1962.685,4025.677,11277.718,3103.052,3785.213,894.610,448.583,533.887,6870.062,834.856,2020.231,658.339,1674.874,1954.242,,,
|
||||
196,63c10a51fc,2026-10-02,5638,"Review and extend the documentation, and check it in CI (#5638)",1968.954,4036.851,11425.135,3104.359,3797.852,902.519,451.067,537.668,6910.375,852.438,2043.889,674.938,1701.314,1971.711,,,
|
||||
197,6d0867a85f,2026-10-02,5751,Make comparisons with scalars noexcept only when the conversion is (#5751),2008.360,4091.453,11376.562,3144.575,3820.110,903.850,455.980,538.035,6851.885,841.549,2010.128,667.182,1690.586,1970.957,,,
|
||||
198,d11e89471b,2026-10-04,5606,Assert on missing array indices in const operator[] and document the JSON pointer case (#5606),2000.121,4075.695,11475.520,3139.456,3837.211,900.437,453.703,538.895,6921.432,845.064,2027.417,663.969,1679.148,1964.082,,,
|
||||
199,df27cc3d4c,2026-10-04,5682,Add scalar-on-left overloads for legacy discarded comparisons in C++20 (#5682),2010.838,4092.432,11495.625,3125.726,3873.167,911.281,456.807,538.386,6911.630,844.451,2033.630,688.219,1691.407,1971.697,,,
|
||||
200,6f2048cd5d,2026-10-04,5685,Accept lvalues in ordered_map::emplace's value parameter (#5685),1999.816,4095.006,11445.740,3136.685,3924.146,918.692,458.336,542.423,6968.520,848.783,2037.096,667.772,1708.274,2002.449,,,
|
||||
201,0d01d6ae90,2026-10-04,5686,Classify leaves with operator<=> itself past the nesting bound (#5686),1983.320,4116.981,11466.250,3192.969,3923.208,914.596,456.625,539.558,6975.537,849.252,2056.035,701.221,1716.493,1983.908,,,
|
||||
202,b730946432,2026-10-04,5689,Fix key types convertible to std::string_view breaking lookups (#5689),1990.288,4060.487,11377.709,3107.537,3803.857,892.191,451.727,538.045,6896.480,844.989,2018.884,658.649,1676.566,2023.638,,,
|
||||
203,49cd427196,2026-10-04,5690,"Copy-construct the base class of a deep copy's elements, not assign it (#5690)",1983.320,4033.156,11333.843,3138.547,3882.878,894.785,454.473,538.337,6918.619,841.205,2072.151,655.193,1693.871,1977.288,,,
|
||||
204,756b28c2b8,2026-10-04,5696,Keep a NUL byte ending a // comment as the end of input (#5696),1985.931,4099.331,11579.875,3148.560,3872.422,896.276,451.436,536.774,6901.156,845.631,2014.820,648.054,1685.199,1971.762,,,
|
||||
205,1edf0ef041,2026-10-04,5700,"Fix value(json_pointer, default) aborting under JSON_NOEXCEPTION (#5700)",1987.233,4076.133,11442.625,3124.099,3888.688,898.266,454.349,539.423,6950.140,852.803,2030.279,654.586,1691.751,1978.197,,,
|
||||
206,a212d3b2e4,2026-10-04,5722,Preserve the object comparator's state in a deep copy past the nesting bound (#5722),2000.138,4113.471,11391.854,3151.006,3866.904,905.695,455.384,539.504,6929.818,842.213,2029.619,674.438,1697.044,1983.856,,,
|
||||
207,1df1e8a845,2026-10-04,5591,Make cross-string-type basic_json conversion explicit without implicit conversions (#5591),2000.533,4107.994,11370.989,3160.854,3881.635,897.877,455.201,540.307,6927.167,840.130,2053.458,664.118,1697.618,1982.876,,,
|
||||
208,38a2db260c,2026-10-04,5728,Remove dead metaprogramming and duplicated code in traits and pointers (#5728),1971.450,4040.828,11319.270,3109.521,3819.505,903.606,451.137,538.725,6825.640,843.951,2016.652,663.160,1684.596,1958.896,,,
|
||||
209,c5650eaa3c,2026-10-04,5704,Reject malformed UTF-16/UTF-32 units in wide-string input (#5704),2006.689,4133.594,11469.209,3180.930,3881.633,902.924,456.572,540.557,6992.385,850.474,2025.267,652.367,1680.025,1957.468,,,
|
||||
210,40021f38fb,2026-10-04,5589,Add basic_json::as_base_class and document name conflicts with custom base classes (#5589),2012.673,4147.193,11453.250,3167.448,3892.542,910.149,457.238,541.642,6998.084,852.247,2049.759,652.868,1688.229,1972.508,,,
|
||||
211,73e9eae3c1,2026-10-04,5746,Add an error_handler parameter for UTF-8 to the binary readers and writers (#5746),2013.845,4130.237,11456.041,3135.688,3818.956,892.111,449.408,538.308,6825.213,835.872,1495.468,697.054,1679.760,1970.285,,,
|
||||
212,d8d47be4a5,2026-10-04,5754,Fix CI on develop after merging the ready-to-merge PRs (#5754),2013.191,4119.948,11573.656,3173.029,3941.703,912.201,459.208,541.264,7013.364,848.908,1514.681,699.273,1685.391,1984.652,,,
|
||||
213,6b4b825af2,2026-10-04,5607,Handle numbers that do not fit narrow number types in the binary readers (#5607),2009.190,4044.127,11362.677,3127.688,3827.841,892.131,449.386,534.731,6915.360,829.562,1487.640,697.206,1688.237,1952.157,,,
|
||||
214,8c1f60a45e,2026-10-04,5600,Store maps with enum keys as objects (opt-in) (#5600),2008.560,4128.059,11523.011,3187.763,3843.177,912.520,456.427,537.514,6859.010,839.685,1501.515,696.508,1688.848,1968.910,,,
|
||||
215,c5a7a4b46d,2026-10-04,5688,"Add deprecated from_bon8/from_bjdata(ptr, len) overloads (#5688)",2030.310,4108.505,11412.907,3141.836,3899.435,904.756,455.298,541.069,6926.151,846.240,1504.193,700.820,1693.983,1987.713,,,
|
||||
216,23d3b373e1,2026-10-04,5755,Add JSON_DELETE_DEPRECATED_FUNCTIONS to delete the deprecated functions (#5755),2018.708,4106.015,11533.729,3134.945,3826.409,899.623,452.833,538.544,6846.443,830.555,1509.060,705.724,1692.819,1971.476,,,
|
||||
217,8a142bc436,2026-10-06,5764,"Fix CI on develop after #5600, #5607, and #5755 (#5764)",2017.533,4151.854,11526.334,3195.240,3884.953,907.457,456.697,540.114,6891.136,844.145,1517.241,699.051,1690.344,1972.104,,,
|
||||
218,5379e04ce4,2026-10-06,5761,Throw type_error.321 when serializing discarded values to binary formats (#5761),1999.156,4055.300,11427.521,3153.581,3836.060,891.927,455.413,540.938,6883.093,853.094,1510.099,701.888,1686.695,1982.806,,,
|
||||
219,0a365865f9,2026-10-06,5762,Make basic_json destruction allocation-free and non-recursive (#5762),2024.289,4081.646,10719.428,3112.958,3900.503,924.900,462.081,540.765,6965.453,850.019,1511.381,669.802,1620.269,1912.078,,,
|
||||
220,5ecb704f6b,2026-10-06,5592,Speedup; check for the expected separator before the lexer's token switch (#5592),1920.428,3801.979,10139.250,2891.862,3833.159,823.859,451.951,540.310,6885.672,843.570,1512.778,668.793,1608.501,1885.206,,,
|
||||
221,6d4543e743,2026-10-06,5767,Fix destroy() for ObjectTypes without reverse iteration (#5767),1929.030,3843.266,10232.541,2911.458,3926.867,830.030,450.002,542.043,6938.890,846.589,1515.211,675.264,1622.245,1904.006,,,
|
||||
222,9b179cee1e,2026-10-06,5770,Handle all value_t enumerators in has_no_children() (#5770),1931.275,3794.497,10155.125,2891.927,3871.831,829.432,446.176,535.126,6909.625,833.114,1498.945,677.571,1615.785,1884.043,,,
|
||||
223,69874e4544,2026-10-06,5760,Fix NUL bytes in UBJSON/BJData high-precision numbers (#5760),1924.896,3853.081,10247.750,2926.515,3872.041,835.227,453.025,541.002,6919.037,842.240,1521.169,674.487,1607.441,1880.884,,,
|
||||
224,162e13b86f,2026-10-06,5758,Add with_*_t alias templates to create basic_json types with changed template parameters (#5758),1938.268,3842.126,10289.968,2914.104,3962.414,834.967,455.536,543.630,6969.266,850.082,1530.064,678.054,1635.303,1916.763,,,
|
||||
225,21a69230bd,2026-10-06,5585,Create a value before giving it its type (#5585),1918.165,3829.354,10247.656,2914.619,3874.909,832.287,451.252,543.791,6873.995,839.514,1521.088,699.604,1615.742,1894.449,,,
|
||||
226,ff6f3d7d4a,2026-10-07,5766,Reject nested indefinite-length CBOR string chunks (#5766),1926.074,3868.810,10256.823,2919.802,3957.807,832.129,457.241,543.640,7024.745,847.770,1522.612,705.623,1634.212,1918.402,,,
|
||||
227,1c754cfe31,2026-10-07,5701,Copy a pair-shaped array value under JSON_BRACE_INIT_COPY_SEMANTICS (#5701),1930.652,3828.195,10263.927,2921.570,3901.404,832.628,455.652,541.701,6909.037,843.563,1512.309,704.354,1623.254,1909.917,,,
|
||||
228,24dd7c63f0,2026-10-07,5777,Re-amalgamate after #5740 (#5777),1908.632,3833.930,10278.146,2905.443,3935.422,838.465,454.491,545.605,6905.047,839.087,1519.816,709.223,1618.643,1886.706,,,
|
||||
229,30e542e52a,2026-10-07,5776,Declare the namespace-scope constants in to_chars.hpp inline (#5776),1934.934,3823.724,10229.636,2916.698,3929.565,829.102,452.279,543.038,6951.995,837.059,1524.049,720.722,1619.823,1903.938,,,
|
||||
230,367336c83d,2026-10-07,5779,Fix CI on develop after #5585 (#5779),1928.921,3780.927,10153.395,2883.604,3877.750,824.488,451.999,543.662,6927.395,835.495,1506.387,694.058,1622.903,1907.732,,,
|
||||
231,069ace74af,2026-10-07,5707,"Round-trip BJData ND-array annotations exactly (single precision, key order) (#5707)",1937.387,3843.716,10184.302,2923.323,3936.570,827.610,456.123,543.169,6907.756,847.020,1515.229,696.202,1626.001,1901.142,,,
|
||||
232,43fe8928e1,2026-10-07,5781,Stop binary writers overflowing the stack on deep values (#5781),1961.046,3868.274,10300.573,2899.792,3982.526,845.594,461.395,543.298,7059.093,846.696,1522.728,697.717,1623.846,1921.370,,,
|
||||
233,a5f5d3059b,2026-10-07,5772,Make std::hash<basic_json> consistent with operator== for numbers (#5772),1949.220,3857.159,10170.427,2890.052,3981.349,840.234,459.334,541.947,6953.786,843.495,1509.713,703.339,1627.086,1911.653,,,
|
||||
234,a269794db7,2026-10-08,5782,Use MSVC intrinsics for full multiplication (#5782),1931.869,3817.742,10159.666,2902.820,3903.263,840.740,455.827,540.621,6884.562,843.272,1513.776,702.028,1614.459,1901.008,,,
|
||||
235,69a0c1b82c,2026-10-09,5328,Avoid allocating temporary basic_json for cbor and msgpack object keys (#5328),1909.579,3777.560,10065.682,2852.732,3897.659,833.289,459.856,540.631,6882.354,833.998,1498.288,314.059,1609.343,1906.714,,,
|
||||
236,374dfe4f0f,2026-10-09,5791,Keep converted object keys alive while writing UBJSON and BJData (#5791),1911.274,3827.188,10159.553,2886.568,3890.388,833.632,459.800,542.649,6954.547,838.507,1509.324,314.357,1613.655,1892.838,,,
|
||||
237,44e8597701,2026-10-09,5792,Flatten deeply nested values without recursing per nesting level (#5792),1940.103,3811.779,10139.396,2865.050,3874.896,835.001,459.686,544.065,6866.943,836.862,1496.298,314.617,1614.837,1891.741,,,
|
||||
238,2913e96433,2026-10-09,5793,Unflatten in time and memory linear in the pointer depth (#5793),1908.453,3785.099,10262.147,2878.961,3920.657,845.619,459.806,543.998,6874.813,832.659,1486.901,312.175,1589.620,1863.981,,,
|
||||
239,84ee12a67c,2026-10-09,5797,Make UTF8_ACCEPT/UTF8_REJECT inline variables to avoid TU-local exposure in modules (#5797),1922.691,3792.849,10162.656,2871.562,3887.719,836.308,456.522,542.577,6912.807,840.369,1497.447,313.683,1609.988,1899.591,,,
|
||||
240,1649d9eda4,2026-10-11,5783,Use and extend the detail helpers to remove duplicated code (#5783),1916.258,3804.242,10297.344,2913.118,3847.662,836.519,453.270,538.750,6953.015,832.774,1506.068,324.715,1596.974,1875.878,,,
|
||||
241,2cca04ae6f,2026-10-11,5800,Report one-character non-numeric array indices like longer ones (#5800),1932.327,3803.750,10135.438,2881.041,3894.622,840.016,458.569,538.037,6842.948,829.444,1499.722,324.811,1607.194,1875.851,,,
|
||||
242,74a03dec84,2026-10-11,5802,Throw type_error.321 for discarded values in to_bon8 (#5802),1924.695,3814.854,10084.239,2873.180,3848.498,839.406,450.575,534.181,6893.005,834.300,1503.369,324.389,1607.323,1887.871,,,
|
||||
243,e8b747e4bc,2026-10-11,5808,Re-amalgamate single_include after #5795 and #5806 (#5808),1937.995,3840.622,10221.990,2896.024,3885.568,834.394,458.874,539.771,6906.182,839.793,1517.689,324.800,1609.838,1890.885,,,
|
||||
244,40a62947d3,2026-10-12,4965,support JSON Merge Patch (RFC 7396) diff creation (#4965),1932.021,3822.188,10248.416,2924.560,3980.331,842.462,459.010,540.237,6978.526,838.941,1529.508,326.435,1636.153,1917.472,,,
|
||||
245,f23830b65e,2026-10-13,5809,Derive the lexer position lazily for seekable input (#5809),1814.075,3368.028,9974.755,2807.532,3943.229,647.639,457.018,551.206,6954.166,843.355,1522.762,315.716,1618.953,1903.816,,,
|
||||
246,aa9620fb15,2026-10-13,5810,Skip the indentation after a newline 8 bytes at a time (#5810),1719.629,2959.344,10139.771,2799.555,3939.292,592.867,465.821,545.858,6968.068,849.167,1519.774,315.385,1629.981,1907.253,,,
|
||||
247,e839bbd1c0,2026-10-13,5813,"Export client-facing headers from json.hpp for IWYU / include-cleaner, and check clients in CI (#5813)",1725.742,2949.070,10136.603,2821.591,3919.927,589.957,463.642,544.851,6987.427,843.151,1517.562,314.425,1619.671,1903.613,,,
|
||||
248,5b4c8f9b00,2026-10-14,5738,"Speed up the lexer: own float parser, string scan, and \u table (#5738)",1615.668,2934.565,8763.651,2794.503,3928.286,559.107,374.921,516.391,6937.140,815.776,1513.238,325.043,1625.226,1912.905,,,
|
||||
249,91a7a94cc6,2026-10-14,5634,"Write doubles with the shortest digits (Żmij), digits in registers (#5634)",1613.126,2929.599,8708.599,2783.954,3874.248,548.449,363.632,468.127,2421.176,745.466,1511.406,323.743,1614.195,1900.392,,,
|
||||
250,a6e9785ab6,2026-10-15,5831,Look up the key only once in the callback parser's key() (#5831),1589.309,2938.557,8798.823,2767.872,3882.154,547.301,364.257,467.833,2395.851,744.716,1506.830,316.192,1623.771,1899.458,,,
|
||||
251,0c4e7c103c,2026-10-15,5834,Make flatten() linear for ordered_json (#5834),1625.754,2936.203,8755.088,2793.081,3879.740,557.529,366.745,468.359,2418.388,746.210,1524.325,315.954,1614.677,1898.544,,,
|
||||
252,0a4b3a84ee,2026-10-15,5836,"Speed up JSON pointer parsing, formatting, comparison and lookup (#5836)",1622.914,2915.901,8819.073,2783.990,3922.758,558.429,366.216,470.019,2427.606,747.168,1526.881,316.972,1625.611,1912.601,,,
|
||||
253,6ba53e63dd,2026-10-15,5833,Speed up array-to-container from_json (#5833),1626.155,2920.747,8777.989,2782.870,3988.206,560.154,367.695,469.892,2427.262,749.301,1529.474,316.399,1631.810,1915.217,,,
|
||||
254,ca7740fef2,2026-10-15,5837,Move elements when converting rvalue containers to JSON (#5837),1615.747,2928.778,8765.792,2773.062,3926.456,561.034,367.498,469.807,2424.344,748.423,1523.215,316.339,1624.374,1894.455,,,
|
||||
255,4530d9681c,2026-10-15,5832,Fix quadratic parent updates for ordered_json with JSON_DIAGNOSTICS (#5832),1618.937,2911.378,8794.094,2763.191,3886.974,555.789,366.475,469.275,2415.231,746.755,1512.590,315.856,1618.226,1899.284,,,
|
||||
256,91869983a0,2026-10-15,5840,Make the value lifecycle inline-friendly (#5840),1595.075,2832.274,8420.390,2690.050,3876.841,555.209,366.118,469.783,2424.335,747.931,1485.914,314.048,1549.787,1775.823,,,
|
||||
257,6a27b9acb2,2026-10-15,5838,Construct remaining hot-path exceptions out of line so core functions inline (#5838),1589.535,2824.360,8466.755,2699.690,3888.990,557.917,364.879,471.601,2422.995,746.543,1498.371,314.978,1539.656,1797.752,,,
|
||||
258,4f11512641,2026-10-15,5835,"Speed up container destruction, iterator access and diff() (#5835)",1515.750,2714.756,8639.213,2574.698,3805.860,561.827,366.793,469.680,2421.769,748.727,1383.744,317.248,1446.525,1705.789,,,
|
||||
259,ed86019a21,2026-10-15,5839,Move binary reader error construction out of line (#5839),1507.907,2766.774,8597.870,2622.289,3767.638,553.026,362.644,468.482,2408.731,744.936,1362.080,324.833,1445.531,1703.216,,,
|
||||
260,6261d1e432,2026-10-15,5842,Construct the JSON Patch exceptions out of line (#5842),1532.015,2756.867,8670.677,2617.989,3869.133,558.865,365.834,469.932,2435.279,750.295,1380.628,327.010,1453.340,1705.232,,,
|
||||
261,ce28c722bc,2026-10-15,5815,Allow the same type for number_integer_t and number_unsigned_t (#5815),1533.045,2775.807,8543.755,2615.412,3776.721,553.127,365.866,471.174,2433.384,745.309,1372.372,328.405,1452.848,1716.649,,,
|
||||
262,91b9ee2602,2026-10-15,5829,Update cppcheck to 1.5.2 (Cppcheck 2.20) and fix its new findings (#5829),1516.450,2748.961,8571.521,2599.870,3807.744,557.303,367.220,472.209,2421.389,743.889,1379.405,326.087,1451.926,1710.506,,,
|
||||
263,dcb96e82fb,2026-10-15,5822,Escape characters below 0x60 from a table straight into the write buffer (#5822),1525.777,2734.963,8524.771,2588.289,3790.726,557.907,360.057,463.574,2430.626,743.382,1375.816,325.308,1439.947,1695.307,,,
|
||||
264,b41228c227,2026-10-15,5843,Fix AppVeyor failures from the Zmij double writer (#5843),1497.922,2690.614,8406.906,2582.482,3726.195,548.374,352.932,459.663,2398.953,737.639,1347.507,322.827,1429.640,1682.775,,,
|
||||
265,4da73dc5ff,2026-10-15,5858,Fix compiler warnings on develop from the API performance stack (#5858),1523.138,2731.825,8474.073,2593.149,3782.769,553.758,359.180,462.915,2380.246,739.049,1346.755,324.909,1441.408,1698.043,,,
|
||||
266,5683f5e024,2026-10-15,5859,Define less_general() only without three-way comparison (#5859),1504.689,2739.172,8603.693,2605.159,3797.057,560.213,358.865,464.429,2423.456,742.207,1374.000,326.702,1447.488,1712.379,,,
|
||||
267,cd6b428ef0,2026-10-16,5860,Fix CI failures on develop from the API performance stack (#5860),1510.160,2732.695,8564.510,2603.242,3810.518,556.015,362.409,466.047,2437.364,745.153,1377.439,325.753,1444.892,1699.255,,,
|
||||
268,cc8334113c,2026-10-19,5866,Do not use Qt's keyword macros as identifiers (#5866),1498.858,2732.644,8535.328,2587.258,3787.993,548.267,362.607,464.487,2403.147,735.633,1368.831,323.997,1442.709,1686.963,,,
|
||||
269,4da932f518,2026-10-19,5828,Make parsing from std::istream and FILE* fast (#5828),1499.289,2723.605,8397.787,2597.237,1956.330,553.182,363.501,458.898,2397.342,733.054,1362.816,320.346,1429.314,1698.294,,,
|
||||
270,122d718330,2026-10-21,5620,"Add json_document and json_view: node index, parser, and document (#5620)",1520.651,2751.099,8527.135,2588.494,1994.466,560.384,362.257,461.917,2393.611,741.198,1362.167,328.620,1441.211,1691.238,230.700,389.375,976.277
|
||||
271,43e97b629b,2026-10-21,5622,"Add element access, iteration, values, and JSON pointers to json_view (#5622)",1493.875,2687.307,8383.354,2567.078,1986.311,547.934,353.938,462.380,2400.331,737.098,1374.560,322.012,1445.504,1686.421,231.353,386.679,958.441
|
||||
272,4c3a3eb5b5,2026-10-21,5624,Add dump() and comparisons to json_view (#5624),1502.926,2714.747,8522.161,2608.565,2001.856,552.014,359.510,462.656,2393.110,732.091,1366.524,324.313,1442.119,1682.564,228.836,393.082,976.976
|
||||
273,3ff37ead75,2026-10-21,5628,Scan json_view strings with SIMD and index large objects (#5628),1514.580,2728.619,8406.562,2609.758,2041.176,556.017,357.330,462.573,2383.158,733.939,1368.057,324.391,1442.711,1700.884,177.833,367.806,950.071
|
||||
274,823eee3b59,2026-10-21,5630,"Add editable json_documents: set, push_back, insert, and erase (#5630)",1498.134,2754.810,8537.062,2588.474,1994.441,556.670,353.931,463.646,2392.987,740.023,1357.930,324.129,1441.622,1698.022,181.404,376.470,962.253
|
||||
275,4971200b54,2026-10-21,5632,Add images of json_documents: save() and load() (#5632),1494.231,2681.211,8425.834,2543.276,1984.849,548.146,354.762,460.440,2414.747,734.679,1363.841,321.349,1421.806,1670.134,177.777,368.631,949.292
|
||||
276,4155e2938f,2026-10-21,5633,Write json_view's dump() without a call or conversion per token (#5633),1500.247,2712.357,8612.193,2597.211,2012.860,558.559,359.889,462.371,2412.896,739.048,1372.456,324.070,1441.546,1697.571,180.320,371.514,954.088
|
||||
277,08d7fbb0a1,2026-10-21,5874,Read FILE* input with std::fgetc under MemorySanitizer (#5874),1543.124,2758.211,8565.730,2584.453,2046.255,558.522,358.865,464.542,2421.435,743.715,1374.005,324.687,1462.572,1700.819,180.714,372.601,965.361
|
||||
278,0cbe95ffa2,2026-10-21,5824,"Speed up writing CBOR and MessagePack, above all integer arrays (#5824)",1501.550,2706.534,8707.120,2584.807,2039.728,551.688,360.692,466.024,2397.182,742.777,1361.847,201.488,1429.223,1682.436,178.641,371.038,946.389
|
||||
279,bd5227c2ec,2026-10-21,5805,Fix silent wrong results for custom number types (#5805),1511.036,2733.325,8786.406,2588.906,2000.483,553.456,360.458,465.989,2398.381,743.338,1370.524,201.168,1444.051,1701.345,179.776,372.557,954.733
|
||||
280,e13e976801,2026-10-21,5851,Accumulate number digits while scanning them (#5851),1501.737,2667.570,7762.365,2523.289,1987.518,545.368,359.336,462.056,2407.652,739.226,1368.104,200.632,1440.390,1688.117,178.721,374.278,956.353
|
||||
281,5e13f834c1,2026-10-21,5852,Copy the text of float tokens only when a SAX handler asks for it (#5852),1512.318,2655.312,7314.354,2515.044,2019.288,547.993,362.038,463.788,2410.262,745.839,1364.898,208.969,1450.422,1713.902,179.198,371.996,968.699
|
||||
282,e9970066c5,2026-10-21,5853,"Scan strings with SSE2, SSSE3, or NEON (#5853)",1488.705,2654.404,7339.589,2551.050,2015.716,486.719,341.381,475.591,2434.369,756.973,1376.754,208.797,1449.981,1706.044,182.358,379.153,968.355
|
||||
283,fa37b952df,2026-10-21,5854,Match literals without a stack array and keep parser states in bytes (#5854),1471.894,2619.164,7285.000,2485.883,1949.380,471.534,347.785,475.287,2413.552,751.487,1374.254,207.522,1443.177,1699.611,181.643,377.971,977.268
|
||||
284,52fecc1fab,2026-10-21,5855,Move object keys into the value when parsing (#5855),1392.599,2628.688,7362.562,2485.293,1882.663,471.968,339.711,473.663,2414.903,751.376,1319.857,200.185,1448.057,1705.675,179.410,371.865,963.306
|
||||
285,6aefd8c662,2026-10-21,5878,Copy short printable-ASCII strings without starting the scanner (#5878),1399.384,2664.401,7232.557,2535.425,1922.431,470.185,320.230,418.440,2446.082,696.786,1317.889,201.955,1447.217,1701.135,180.860,376.217,968.215
|
||||
286,7c26e99ac5,2026-10-21,5879,Copy ASCII strings in the view's dump with ensure_ascii (#5879),1361.839,2610.182,7187.115,2471.708,1853.592,464.274,313.821,414.316,2388.840,687.851,1318.253,200.399,1434.986,1697.487,178.601,368.595,947.799
|
||||
287,3e031b06a5,2026-10-21,5876,"Use standard library helpers where available, with C++11 fallbacks (#5876)",1381.599,2592.122,7336.719,2499.994,1848.434,467.895,315.257,415.788,2430.769,692.250,1311.164,200.424,1444.303,1698.311,180.149,374.484,961.091
|
||||
288,9bf531436f,2026-10-21,5861,"Speed up flatten(), unflatten(), diff() and patch() (#5861)",1379.301,2613.219,7170.433,2472.628,1853.035,467.161,315.217,412.303,2406.597,683.062,1298.512,198.681,1434.089,1682.912,177.511,368.116,947.255
|
||||
289,9855db81f3,2026-10-22,5881,Silence macro-to-enum for the endianness macros (#5881),1369.150,2613.547,7209.787,2476.232,1841.347,467.780,316.011,416.187,2415.504,686.920,1304.263,200.868,1441.243,1694.603,178.739,368.123,948.579
|
||||
290,aa0b371f7c,2026-10-23,5884,"Faster std::istream input: inline get-area path, binary reads, unbuffered streambufs (#5884)",1375.030,2569.362,7218.375,2484.425,1743.476,470.240,319.245,403.750,2436.034,679.759,1319.508,201.531,1443.354,1698.057,180.133,372.206,946.488
|
||||
291,86d5c56c54,2026-10-23,5886,"Speed up flatten(), unflatten(), diff() and patch() further (#5886)",1386.169,2622.331,7281.551,2495.923,1700.794,472.317,317.282,403.416,2409.097,682.507,1320.319,200.963,1444.908,1697.678,179.138,375.751,954.573
|
||||
292,dec0e9b749,2026-10-23,5883,"Write strings, scalars and indentation in dump() with fewer calls (#5883)",1383.235,2621.847,7151.412,2491.644,1732.469,473.034,211.016,288.685,2276.953,416.068,1318.490,200.574,1452.099,1701.256,180.064,372.324,960.583
|
||||
293,6fa14d8f95,2026-10-23,5885,Write binary formats through reserved sink space and number runs (#5885),1366.956,2600.914,7176.994,2465.343,1691.333,462.351,210.662,285.259,2301.553,417.589,1324.173,136.601,1429.240,1687.947,179.319,368.881,962.518
|
||||
294,0b924f5375,2026-10-23,5887,Split and print JSON pointers in one pass (#5887),1377.526,2597.394,7242.688,2464.445,1739.841,466.382,211.716,288.202,2319.771,418.288,1318.592,138.744,1441.983,1706.639,179.684,372.087,976.078
|
||||
295,e9c4fe3cdf,2026-10-24,5889,json_view: indented and ensure_ascii dumps through the fast writer (#5889),1393.007,2627.226,7248.287,2491.551,1769.642,469.976,211.665,291.327,2305.655,420.168,1319.431,139.577,1457.965,1712.927,182.274,377.741,983.284
|
||||
296,dd7686a269,2026-10-24,5888,"json_view: faster reading, indexing and C-stream parsing (#5888)",1382.444,2607.026,7161.365,2472.635,1701.277,468.438,209.963,287.564,2276.329,415.511,1311.194,137.875,1439.700,1696.646,177.624,367.131,977.802
|
||||
297,9c50bdd140,2026-10-24,5882,Make the DOM parser cheaper per container and per member (#5882),1392.673,2461.082,6068.625,2334.706,1696.950,475.550,209.313,291.776,2300.287,416.349,1317.581,138.194,1441.209,1707.720,178.751,367.339,978.031
|
||||
298,01139dc192,2026-10-24,5905,Silence an Infer false positive in json_view materialize (#5905),1381.470,2463.013,6078.010,2335.216,1709.088,475.718,211.023,291.212,2275.302,418.098,1320.441,137.572,1443.434,1696.436,175.969,365.658,975.272
|
||||
299,fe5e401870,2026-10-25,5901,Consolidate duplicated detail helpers and bodies (#5891) (#5901),1395.881,2462.765,6066.698,2327.708,1706.745,474.184,212.683,289.321,2283.842,417.657,1314.153,138.084,1442.796,1696.588,177.144,364.092,961.847
|
||||
300,3eae5680d6,2026-10-25,5902,"from_json: number-first dispatch for arithmetic types, loop for std::array (#5902)",1397.343,2477.060,6080.864,2340.781,1711.774,481.523,213.618,289.360,2289.503,417.517,1313.541,138.271,1440.822,1695.785,178.731,367.293,983.555
|
||||
301,2a56afc714,2026-10-25,5916,Fix VS 2015 build of the DOM parser (#5882) (#5916),1373.929,2476.139,6056.797,2341.890,1749.167,482.883,215.107,290.053,2292.495,417.441,1320.640,137.868,1445.227,1702.064,177.912,367.669,984.794
|
||||
302,d6431a9104,2026-10-26,5918,Throw out_of_range.411 for JSON Patch add into a null parent (#5917) (#5918),1371.635,2445.905,6017.636,2314.178,1696.447,478.134,210.996,287.397,2278.718,414.186,1291.197,137.374,1436.212,1682.197,175.790,361.130,962.070
|
||||
303,81d66291c5,2026-10-26,5358,Create objects for pointer tokens that cannot be array indices (#5358),1382.909,2465.649,6052.114,2332.556,1711.721,479.927,213.359,289.913,2289.412,417.201,1311.695,137.572,1437.168,1696.302,177.495,367.526,963.924
|
||||
304,d5da84249f,2026-10-26,5927,"Skip CBOR tags in front of map keys, validate indefinite text chunks, fix CBOR docs (#5927)",1374.553,2476.464,6076.834,2346.075,1744.224,483.375,211.423,291.148,2287.800,420.247,1320.015,137.369,1449.068,1704.785,177.459,365.004,963.908
|
||||
305,0c3570d44a,2026-10-26,5929,Validate the UBJSON/BJData container type marker for count 0; fix UBJSON docs (#5929),1381.462,2462.578,6055.183,2329.970,1713.086,484.962,210.683,290.024,2260.371,416.895,1319.093,137.782,1453.495,1706.801,177.031,361.025,962.952
|
||||
306,dc768a7d5d,2026-10-26,5930,Fix BSON binary subtype 0x02 and check the declared document size earlier (#5930),1386.856,2463.400,6054.255,2337.105,1746.441,485.425,214.508,290.954,2314.702,418.769,1325.164,139.255,1452.125,1718.313,179.005,367.327,977.054
|
||||
307,60107eda3f,2026-10-26,5931,"Read BJData ND-arrays of float16, restrict ND-array char to 0..127, correct BJData docs (#5931)",1389.051,2464.457,6049.084,2336.727,1710.473,483.159,213.007,288.990,2285.073,417.663,1317.537,137.893,1443.301,1697.126,178.706,364.051,962.202
|
||||
308,731f1b5bfb,2026-10-26,5919,"json_view: view_mode enum instead of bool Editable, node_kind for node::kind (#5919)",1381.664,2428.529,5978.713,2333.485,1746.571,479.163,211.036,288.957,2281.592,416.990,1308.904,137.486,1447.665,1691.427,175.453,363.704,963.371
|
||||
309,4cdfa6d0f4,2026-10-26,5920,json_view: no save() and load() on big-endian targets (#5920),1390.901,2477.841,6102.474,2337.925,1777.003,485.382,214.373,290.946,2303.147,421.178,1321.976,139.942,1446.726,1704.816,179.928,367.825,976.532
|
||||
310,5a2819c940,2026-10-26,5921,json_view: one SIMD macro set with the library (#5921),1393.409,2479.841,6073.011,2350.336,1785.087,485.658,214.651,292.044,2304.448,418.026,1326.212,138.942,1468.981,1719.505,179.174,368.704,982.764
|
||||
311,e5fe4ebdd2,2026-10-26,5922,json_view: from_json() of the macros reads views directly (#5922),1384.612,2467.078,6056.328,2337.309,1742.751,482.554,213.389,289.543,2299.118,417.521,1309.673,138.237,1448.628,1704.550,177.925,365.163,984.351
|
||||
312,9e67bfa115,2026-10-26,5923,json_view: the library's std conversions read views directly (#5923),1395.103,2482.517,6066.604,2350.538,1751.603,482.504,213.399,290.185,2306.188,420.406,1317.415,138.730,1444.367,1708.720,178.016,369.111,975.875
|
||||
313,21ec9bd801,2026-10-27,5915,json_view: fewer allocations when parsing small documents (#5915),1388.282,2469.118,6066.495,2340.391,1744.901,478.745,214.934,292.970,2309.264,422.842,1323.237,138.541,1454.151,1707.314,178.058,366.514,958.110
|
||||
314,2bb2feeef4,2026-10-27,5942,"Fix the red CI on develop (json_view pointer tokens, bson, from_json tests, Infer, IWYU) (#5942)",1391.981,2468.266,6068.495,2335.707,1751.527,482.908,214.285,291.291,2300.453,417.876,1328.089,138.010,1454.934,1701.845,178.250,367.182,964.917
|
||||
315,78a0687147,2026-10-27,5940,Strong exception guarantee for operator[](json_pointer) (#5940),1379.414,2467.492,6109.136,2335.309,1723.090,480.260,216.197,292.075,2313.798,415.444,1314.530,138.314,1449.629,1698.792,177.628,364.844,965.314
|
||||
316,candidate,,,develop + open pull requests,1383.171,2465.866,6049.771,2336.394,1725.095,480.882,214.967,292.621,2289.324,418.010,1320.853,137.793,1439.615,1710.333,176.356,364.229,962.166
|
||||
|
@@ -0,0 +1,360 @@
|
||||
"""Draws the figures of home/blog/how_3_13_0_got_faster.md as inline SVGs into docs/images/.
|
||||
|
||||
Generated files:
|
||||
|
||||
- perf_blog_overview.svg: speedup of 3.13.0 over 3.12.0 per workload (Google Benchmark suite)
|
||||
- perf_blog_timeline_<workload>.svg: speedup over 3.12.0 of eight workloads at every develop commit that changed
|
||||
json.hpp or json_view.hpp since 3.12.0, one panel each
|
||||
- perf_blog_swar.svg: the eight-byte string test on one word of input
|
||||
- perf_blog_cliffs.svg: operations that were quadratic or worse, 3.12.0 against 3.13.0 (log scale)
|
||||
- perf_blog_view.svg: parse throughput of json_document, yyjson, simdjson's DOM, Boost.JSON and json::parse
|
||||
|
||||
The numbers are copied from the tables of the post (the timeline from data/perf_timeline.csv, which
|
||||
`tests/benchmarks/history/history.py summarize` writes); the tables stay on the page as the accessible fallback. Update both together.
|
||||
Like the figures of charts.py, the SVGs are not images: the page includes their text with
|
||||
`--8<-- "images/<name>.svg"`, so they follow the colours and fonts of the page (`nj-charts` rules in
|
||||
docs/css/fig-charts.css, `nj-fig` rules in docs/css/brand.css). Run `python3 scripts/figures/perf_blog.py` from
|
||||
docs/mkdocs after changing data or drawing, and commit the generated files.
|
||||
"""
|
||||
import csv
|
||||
import html
|
||||
import math
|
||||
import re
|
||||
from pathlib import Path
|
||||
|
||||
HERE = Path(__file__).resolve().parent
|
||||
OUT = HERE.parents[1] / "docs" / "images"
|
||||
MINUS = "−"
|
||||
TIMES = "×"
|
||||
|
||||
# words the abbreviation extension (includes/glossary.md) would wrap in <abbr> inside the SVG text
|
||||
ABBR = re.compile(r"(?<![\w;])(BJData|BON8|BSON|CBOR|GCC|UBJSON|MsgPack|JSON|DOM|SAX|SIMD|UTF|ASCII)(?!\w)")
|
||||
|
||||
|
||||
def protect(text):
|
||||
return ABBR.sub(lambda m: m.group(1)[0] + "​" + m.group(1)[1:], text)
|
||||
|
||||
|
||||
def esc(s):
|
||||
return html.escape(s, quote=True).replace("&#", "&#")
|
||||
|
||||
|
||||
def write(name, W, H, cls, tid, title, desc, body):
|
||||
s = ['<svg class="nj-fig nj-charts %s" viewBox="0 0 %g %g" role="img" aria-labelledby="%s %s-d" '
|
||||
'xmlns="http://www.w3.org/2000/svg">' % (cls, W, H, tid, tid),
|
||||
'<title id="%s">%s</title>' % (tid, esc(title)),
|
||||
'<desc id="%s-d">%s</desc>' % (tid, esc(desc))]
|
||||
s += body
|
||||
s.append('</svg>')
|
||||
text = protect("\n".join(s)) + "\n"
|
||||
assert "\n\n" not in text # a blank line would end the raw HTML block
|
||||
(OUT / name).write_text(text)
|
||||
|
||||
|
||||
def hbar(x0, x1, y, h, r=4):
|
||||
"""Horizontal bar from the baseline x0 to x1, rounded only at the data end."""
|
||||
if abs(x1 - x0) < 0.5:
|
||||
return "M%g %g h0.5 v%g h-0.5 Z" % (x0, y, h)
|
||||
r = min(r, h / 2, abs(x1 - x0))
|
||||
s = 1 if x1 > x0 else -1
|
||||
return ("M%g %g H%g Q%g %g %g %g V%g Q%g %g %g %g H%g Z"
|
||||
% (x0, y, x1 - s * r, x1, y, x1, y + r, y + h - r, x1, y + h, x1 - s * r, y + h, x0))
|
||||
|
||||
|
||||
def fx(v):
|
||||
"""speedup factor for labels: 2 significant digits below 10, integers above"""
|
||||
if v >= 100:
|
||||
return "%d%s" % (round(v), TIMES)
|
||||
if v >= 10:
|
||||
return "%.0f%s" % (v, TIMES)
|
||||
return "%.1f%s" % (v, TIMES) if v >= 1.995 else "%.2f%s" % (v, TIMES)
|
||||
|
||||
|
||||
# ---------- SWAR: one word of a string ----------
|
||||
def swar():
|
||||
text = 'witter",'
|
||||
W, H = 640, 312
|
||||
L, cw, top = 40, 70, 34
|
||||
b = []
|
||||
b.append('<text class="fg-h" x="%g" y="20">eight input bytes, loaded as one 64-bit word (byte 0 is the lowest)</text>' % L)
|
||||
for i, ch in enumerate(text):
|
||||
x = L + i * cw
|
||||
special = ch == '"'
|
||||
b.append('<rect class="fg-cell" x="%g" y="%g" width="%g" height="40" rx="4"/>' % (x, top, cw - 6))
|
||||
if special:
|
||||
b.append('<rect class="nj-charts-c2" fill-opacity=".25" x="%g" y="%g" width="%g" height="40" rx="4"/>' % (x, top, cw - 6))
|
||||
b.append('<text class="fg-code" x="%g" y="%g" text-anchor="middle">%s</text>' % (x + (cw - 6) / 2, top + 26, esc(ch)))
|
||||
b.append('<text class="nj-charts-tick" x="%g" y="%g">0x%02X</text>' % (x + (cw - 6) / 2, top + 58, ord(ch)))
|
||||
b.append('<text class="nj-charts-tick" x="%g" y="%g">byte %d</text>' % (x + (cw - 6) / 2, top + 74, i))
|
||||
# result row
|
||||
y2 = top + 112
|
||||
b.append('<text class="fg-h" x="%g" y="%g">swar_string_special(): the high bit of each byte that needs handling</text>' % (L, y2 - 14))
|
||||
for i, ch in enumerate(text):
|
||||
x = L + i * cw
|
||||
special = ch == '"'
|
||||
b.append('<rect class="fg-cell" x="%g" y="%g" width="%g" height="34" rx="4"/>' % (x, y2, cw - 6))
|
||||
if special:
|
||||
b.append('<rect class="nj-charts-c2" fill-opacity=".25" x="%g" y="%g" width="%g" height="34" rx="4"/>' % (x, y2, cw - 6))
|
||||
b.append('<text class="fg-code" x="%g" y="%g" text-anchor="middle">%s</text>'
|
||||
% (x + (cw - 6) / 2, y2 + 23, "0x80" if special else "0x00"))
|
||||
# conclusion
|
||||
y3 = y2 + 70
|
||||
b.append('<text class="fg-code" x="%g" y="%g">count_trailing_zeros(0x0080000000000000) = 55</text>' % (L, y3))
|
||||
b.append('<text class="fg-code" x="%g" y="%g">55 / 8 = 6: copy bytes 0 to 5 in one go, then handle the quote</text>' % (L, y3 + 26))
|
||||
b.append('<text class="fg-note fg-note--l" x="%g" y="%g">No branch per byte: a few subtractions, ANDs and ORs per word,</text>' % (L, y3 + 56))
|
||||
b.append('<text class="fg-note fg-note--l" x="%g" y="%g">then one count of trailing zeros.</text>' % (L, y3 + 74))
|
||||
write("perf_blog_swar.svg", W, H, "nj-charts--swar", "nj-blog-swar",
|
||||
"Finding the end of a run of ordinary string characters eight bytes at a time",
|
||||
"The eight bytes w, i, t, t, e, r, quote and comma are loaded as one word. The test sets the high bit only in "
|
||||
"byte 6, the quote. Counting trailing zero bits gives 55, divided by eight gives 6: bytes 0 to 5 are copied "
|
||||
"at once, then the quote ends the string.", b)
|
||||
|
||||
|
||||
# ---------- overview: speedup per workload (Google Benchmark rows, 3.12.0 time / 3.13.0 time) ----------
|
||||
# (group, label, speedup), copied from the table "The short version"
|
||||
OVERVIEW = [
|
||||
("Parsing", "twitter.json", 3.02),
|
||||
("Parsing", "citm_catalog.json", 4.13),
|
||||
("Parsing", "canada.json", 3.46),
|
||||
("Parsing", "canada.json, indented", 6.74),
|
||||
("Parsing", "citm, ordered_json", 6.58),
|
||||
("Parsing", "twitter, std::ifstream", 2.46),
|
||||
("Parsing", "citm, FILE*", 4.76),
|
||||
("Parsing", "citm, accept()", 6.99),
|
||||
("Writing", "dump() twitter", 6.67),
|
||||
("Writing", "dump() canada", 2.95),
|
||||
("Writing", "dump(4) citm", 4.63),
|
||||
("Writing", "to_cbor() twitter", 4.50),
|
||||
("Reading CBOR", "twitter, memory", 3.11),
|
||||
("Reading CBOR", "twitter, FILE*", 6.31),
|
||||
("Values", "diff() canada", 10.44),
|
||||
("Values", "iterate canada", 2.69),
|
||||
("Values", "copy + destroy citm", 1.11),
|
||||
("Values", "== citm", 1.04),
|
||||
]
|
||||
|
||||
|
||||
def overview():
|
||||
W, L, R = 560, 190, 520
|
||||
hi = max(v for _, _, v in OVERVIEW)
|
||||
hi = math.ceil(hi + 0.5)
|
||||
X = lambda v: L + v / hi * (R - L)
|
||||
pitch, bh, top = 24, 15, 34
|
||||
b, desc = [], []
|
||||
y = top
|
||||
group = None
|
||||
rows = []
|
||||
for g, label, v in OVERVIEW:
|
||||
if g != group:
|
||||
if group is not None:
|
||||
y += 10
|
||||
b.append('<text class="nj-charts-panel" x="%g" y="%g">%s</text>' % (8, y + 12, esc(g)))
|
||||
y += 22
|
||||
group = g
|
||||
rows.append((label, v, y))
|
||||
y += pitch
|
||||
axis_y = y + 2
|
||||
for t in range(1, hi + 1):
|
||||
b.append('<line class="nj-charts-grid" x1="%g" y1="%g" x2="%g" y2="%g"/>' % (X(t), top, X(t), axis_y))
|
||||
b.append('<text class="nj-charts-tick" x="%g" y="%g">%d%s</text>' % (X(t), axis_y + 16, t, TIMES))
|
||||
for label, v, yy in rows:
|
||||
b.append('<text class="nj-charts-rowlabel nj-charts-tick--r" x="%g" y="%g" text-anchor="end">%s</text>' % (L - 8, yy + bh - 3, esc(label)))
|
||||
b.append('<path class="nj-charts-c1" d="%s"><title>%s: %s</title></path>' % (hbar(X(0), X(v), yy, bh), esc(label), fx(v)))
|
||||
b.append('<text class="nj-charts-val" x="%g" y="%g">%s</text>' % (X(v) + 5, yy + bh - 3, fx(v)))
|
||||
desc.append("%s %s" % (label, fx(v).replace(TIMES, "x")))
|
||||
b.append('<line class="nj-charts-ref" x1="%g" y1="%g" x2="%g" y2="%g"/>' % (X(1), top, X(1), axis_y))
|
||||
b.append('<line class="nj-charts-zero" x1="%g" y1="%g" x2="%g" y2="%g"/>' % (X(0), top, X(0), axis_y))
|
||||
b.append('<text class="nj-charts-note" x="%g" y="%g">speedup over 3.12.0 (the line at 1%s is 3.12.0)</text>' % (L, 18, TIMES))
|
||||
write("perf_blog_overview.svg", W, axis_y + 28, "nj-charts--blog", "nj-blog-overview",
|
||||
"Speedup of 3.13.0 over 3.12.0 per workload, Apple M1 Max, Apple clang",
|
||||
"Horizontal bars, longer is faster. " + "; ".join(desc) + ".", b)
|
||||
|
||||
|
||||
# ---------- timeline: one panel per workload ----------
|
||||
# (column in perf_timeline.csv, panel title, [PR numbers to label])
|
||||
TIMELINE = [
|
||||
("parse_citm", "parse() citm_catalog.json", [5234, 5283, 5592, 5809, 5810, 5882]),
|
||||
("parse_canada", "parse() canada.json", [5234, 5283, 5617, 5738, 5851, 5882]),
|
||||
("accept_twitter", "accept() twitter.json", [5234, 5283, 5592, 5809, 5810, 5853]),
|
||||
("parse_twitter_ifstream", "parse() twitter.json, std::ifstream", [5828, 5884]),
|
||||
("dump_twitter", "dump() twitter.json", [5285, 5738, 5878, 5883]),
|
||||
("dump_canada", "dump() canada.json", [5285, 5634]),
|
||||
("from_cbor_twitter", "from_cbor() twitter", [5233, 5501, 5185, 5746]),
|
||||
("to_cbor_twitter", "to_cbor() twitter", [5328, 5824, 5885]),
|
||||
]
|
||||
MONTHS = [("2025-04", "3.12.0"), ("2026-09", "Sep 2026"), ("2026-10", "Oct")]
|
||||
|
||||
|
||||
def timeline():
|
||||
rows = list(csv.DictReader((HERE / "data" / "perf_timeline.csv").open()))
|
||||
n = len(rows)
|
||||
W, H = 340, 252
|
||||
L, R, T, B = 44, 330, 62, 208
|
||||
for col, title, labels in TIMELINE:
|
||||
vals = [float(r[col]) if r[col] else None for r in rows]
|
||||
base = vals[0]
|
||||
rel = [base / v if v else None for v in vals] # speedup over 3.12.0
|
||||
hi = max(x for x in rel if x)
|
||||
top = 2 ** math.ceil(math.log2(hi * 1.3))
|
||||
Y = lambda s: B - math.log2(s) / math.log2(top) * (B - T)
|
||||
X = lambda i: L + i / (n - 1) * (R - L)
|
||||
b = ['<text class="nj-charts-panel" x="%g" y="18">%s</text>' % (8, esc(title))]
|
||||
t = 1
|
||||
while t <= top:
|
||||
b.append('<line class="nj-charts-grid" x1="%g" y1="%g" x2="%g" y2="%g"/>' % (L, Y(t), R, Y(t)))
|
||||
b.append('<text class="nj-charts-tick nj-charts-tick--r" x="%g" y="%g">%d%s</text>' % (L - 6, Y(t) + 4, t, TIMES))
|
||||
t *= 2
|
||||
# month ticks: first commit of the month
|
||||
seen = set()
|
||||
for i, r in enumerate(rows):
|
||||
m = r["date"][:7]
|
||||
for key, name in MONTHS:
|
||||
if m == key and key not in seen:
|
||||
seen.add(key)
|
||||
b.append('<line class="nj-charts-axis" x1="%g" y1="%g" x2="%g" y2="%g"/>' % (X(i), B, X(i), B + 4))
|
||||
b.append('<text class="nj-charts-tick" x="%g" y="%g">%s</text>' % (X(i), B + 17, name))
|
||||
# a step line: each commit's value holds until the next commit
|
||||
pts, prev = [], None
|
||||
for i, s in enumerate(rel):
|
||||
if s is None:
|
||||
continue
|
||||
if prev is not None:
|
||||
pts.append("%.1f,%.1f" % (X(i), Y(prev)))
|
||||
pts.append("%.1f,%.1f" % (X(i), Y(s)))
|
||||
prev = s
|
||||
b.append('<polyline class="nj-charts-json" points="%s"/>' % " ".join(pts))
|
||||
# labels for named steps: a dot at the commit and its PR number above it; PRs a few commits apart share a
|
||||
# label, and a label that would overlap one already placed moves up
|
||||
groups = []
|
||||
for pr in labels:
|
||||
i = next(k for k, r in enumerate(rows) if r["pr"] == str(pr))
|
||||
if groups and X(i) - X(groups[-1][-1][1]) < 6:
|
||||
groups[-1].append((pr, i))
|
||||
else:
|
||||
groups.append([(pr, i)])
|
||||
# labels in two rows above the plot, each with a guide down to its dot
|
||||
placed = []
|
||||
for g in groups:
|
||||
i = g[-1][1]
|
||||
x, y = X(i), Y(rel[i])
|
||||
for pr, k in g:
|
||||
b.append('<circle class="nj-charts-json-dot" cx="%.1f" cy="%.1f" r="3.5"><title>#%s: %s</title></circle>'
|
||||
% (X(k), Y(rel[k]), pr, fx(rel[k])))
|
||||
text = ", ".join("#%s" % pr for pr, _ in g)
|
||||
w = 7.2 * len(text)
|
||||
tx = min(max(x, L + w / 2), R - w / 2)
|
||||
row = 0
|
||||
while any(r == row and abs(tx - px) < (w + pw) / 2 + 4 for px, r, pw in placed):
|
||||
row += 1
|
||||
placed.append((tx, row, w))
|
||||
ty = 50 - 13 * row
|
||||
b.append('<line class="nj-charts-grid" stroke-dasharray="2 2" x1="%.1f" y1="%.1f" x2="%.1f" y2="%.1f"/>' % (x, ty + 4, x, y - 5))
|
||||
b.append('<text class="nj-charts-note" x="%.1f" y="%.1f" text-anchor="middle">%s</text>' % (tx, ty, text))
|
||||
b.append('<line class="nj-charts-axis" x1="%g" y1="%g" x2="%g" y2="%g"/>' % (L, B, R, B))
|
||||
final = rel[-1]
|
||||
desc = ("%s: speedup over 3.12.0 at each of %d commits, ending at %s. Labeled steps: %s."
|
||||
% (title, n, fx(final).replace(TIMES, "x"), ", ".join("#%s" % p for p in labels)))
|
||||
write("perf_blog_timeline_%s.svg" % col, W, H, "nj-charts--timeline", "nj-blog-tl-" + col,
|
||||
"%s: speedup over 3.12.0 by commit" % title, desc, b)
|
||||
|
||||
|
||||
# ---------- cliffs: 3.12.0 and 3.13.0 times on a log axis ----------
|
||||
# (operation, 3.12.0 ms, 3.13.0 ms), copied from the table in "Fix the algorithm first"
|
||||
CLIFFS = [
|
||||
("diff() 64k numbers vs []", 4102, 9.98),
|
||||
("diff() 20k objects vs half", 119, 3.85),
|
||||
("parse() callback, 32k objects", 1334, 11.5),
|
||||
("< nested 24 deep", 62.6, 0.002),
|
||||
("< citm, 10x", 274, 3.81),
|
||||
("flatten() citm, ordered_json", 253, 1.37),
|
||||
("to_bson() 200 deep, 100x", 19.5, 0.566),
|
||||
("push_back() 100k, diagnostics", 1514, 4.98),
|
||||
("at(i) 10k, diagnostics", 43.2, 0.081),
|
||||
]
|
||||
|
||||
|
||||
def cliffs():
|
||||
W, L, R = 600, 250, 585
|
||||
lo, hi = -3, 4 # 1 µs .. 10 s, in log10 ms
|
||||
X = lambda ms: L + (math.log10(ms) - lo) / (hi - lo) * (R - L)
|
||||
top, pitch = 40, 34
|
||||
b, desc = [], []
|
||||
axis_y = top + pitch * len(CLIFFS) - 10
|
||||
for e in range(lo, hi + 1):
|
||||
b.append('<line class="nj-charts-grid" x1="%g" y1="%g" x2="%g" y2="%g"/>' % (X(10 ** e), top - 10, X(10 ** e), axis_y))
|
||||
lab = {-3: "1 µs", -2: "10 µs", -1: "0.1 ms", 0: "1 ms", 1: "10 ms", 2: "0.1 s", 3: "1 s", 4: "10 s"}[e]
|
||||
b.append('<text class="nj-charts-tick" x="%g" y="%g">%s</text>' % (X(10 ** e), axis_y + 16, lab))
|
||||
b.append('<circle class="nj-charts-ojson-dot" cx="%g" cy="14" r="5"/><text class="nj-charts-leg" x="%g" y="18.5">3.12.0</text>' % (L, L + 10))
|
||||
b.append('<circle class="nj-charts-json-dot" cx="%g" cy="14" r="5"/><text class="nj-charts-leg" x="%g" y="18.5">3.13.0</text>' % (L + 80, L + 90))
|
||||
for i, (op, old, new) in enumerate(CLIFFS):
|
||||
y = top + i * pitch + 8
|
||||
b.append('<text class="nj-charts-rowlabel" x="%g" y="%g" text-anchor="end">%s</text>' % (L - 10, y + 4, esc(op)))
|
||||
b.append('<line class="nj-charts-axis" x1="%g" y1="%g" x2="%g" y2="%g"/>' % (X(new), y, X(old), y))
|
||||
b.append('<circle class="nj-charts-ojson-dot" cx="%g" cy="%g" r="5"><title>%s, 3.12.0: %g ms</title></circle>' % (X(old), y, esc(op), old))
|
||||
b.append('<circle class="nj-charts-json-dot" cx="%g" cy="%g" r="5"><title>%s, 3.13.0: %g ms</title></circle>' % (X(new), y, esc(op), new))
|
||||
b.append('<text class="nj-charts-factor" x="%g" y="%g">%s</text>' % ((X(old) + X(new)) / 2, y - 7, fx(old / new)))
|
||||
desc.append("%s: %g ms to %g ms" % (op, old, new))
|
||||
write("perf_blog_cliffs.svg", W, axis_y + 28, "nj-charts--blog", "nj-blog-cliffs",
|
||||
"Operations that grew quadratically or worse: time with 3.12.0 and 3.13.0, log scale",
|
||||
"Dot plot on a logarithmic time axis. " + "; ".join(desc) + ".", b)
|
||||
|
||||
|
||||
# ---------- json_view: parse throughput ----------
|
||||
# engines and GB/s per file, copied from the table in "Build a different data structure"
|
||||
VIEW_FILES = ["twitter.json", "citm_catalog.json", "canada.json", "jeopardy.json"]
|
||||
VIEW_BYTES = [631514, 1727204, 2251051, 55554625]
|
||||
VIEW_US = [ # (engine, css class, [µs per file])
|
||||
("json_document", "nj-charts-c1", [181.7, 359.9, 959.5, 22687]),
|
||||
("yyjson", "nj-charts-c2", [192.0, 478.1, 1489, 30528]),
|
||||
("simdjson DOM", "nj-charts-c3", [216.4, 490.2, 2098, 26875]),
|
||||
("Boost.JSON", "nj-charts-c4", [866.0, 1480, 2501, 88900]),
|
||||
("json::parse", "nj-charts-c5", [1368, 2409, 5890, 167664]),
|
||||
]
|
||||
VIEW = [(e, c, [n / (t * 1000) for n, t in zip(VIEW_BYTES, us)]) for e, c, us in VIEW_US] # GB/s
|
||||
|
||||
|
||||
def view():
|
||||
W, L, R = 580, 142, 545
|
||||
hi = max(max(v) for _, _, v in VIEW)
|
||||
hi = math.ceil(hi * 2) / 2
|
||||
X = lambda v: L + v / hi * (R - L)
|
||||
bh, gap = 11, 2
|
||||
top = 44
|
||||
group_h = len(VIEW) * (bh + gap) + 14
|
||||
b, desc = [], []
|
||||
x = 8
|
||||
for j, (eng, cls, _) in enumerate(VIEW):
|
||||
b.append('<rect class="%s" x="%g" y="10" width="12" height="12" rx="3"/>' % (cls, x))
|
||||
b.append('<text class="nj-charts-leg" x="%g" y="20.5">%s</text>' % (x + 18, esc(eng)))
|
||||
x += 18 + 7.4 * len(eng) + 16
|
||||
axis_y = top + group_h * len(VIEW_FILES)
|
||||
t = 0.5
|
||||
while t <= hi + 1e-9:
|
||||
b.append('<line class="nj-charts-grid" x1="%g" y1="%g" x2="%g" y2="%g"/>' % (X(t), top - 4, X(t), axis_y))
|
||||
b.append('<text class="nj-charts-tick" x="%g" y="%g">%g</text>' % (X(t), axis_y + 16, t))
|
||||
t += 0.5
|
||||
b.append('<text class="nj-charts-tick" x="%g" y="%g">GB/s, longer is faster</text>' % ((L + R) / 2, axis_y + 34))
|
||||
for i, f in enumerate(VIEW_FILES):
|
||||
y0 = top + i * group_h
|
||||
b.append('<text class="nj-charts-rowlabel" x="%g" y="%g" text-anchor="end">%s</text>' % (L - 8, y0 + group_h / 2, esc(f)))
|
||||
for j, (eng, cls, vals) in enumerate(VIEW):
|
||||
y = y0 + j * (bh + gap)
|
||||
b.append('<path class="%s" d="%s"><title>%s, %s: %.2f GB/s</title></path>' % (cls, hbar(X(0), X(vals[i]), y, bh), esc(eng), esc(f), vals[i]))
|
||||
b.append('<text class="nj-charts-val" x="%g" y="%g">%.2f</text>' % (X(vals[i]) + 4, y + bh - 1.5, vals[i]))
|
||||
desc.append("%s %s %.2f GB/s" % (f, eng, vals[i]))
|
||||
b.append('<line class="nj-charts-zero" x1="%g" y1="%g" x2="%g" y2="%g"/>' % (X(0), top - 4, X(0), axis_y))
|
||||
write("perf_blog_view.svg", W, axis_y + 44, "nj-charts--blog", "nj-blog-view",
|
||||
"Parse throughput of json_document, yyjson, simdjson's DOM, Boost.JSON and json::parse, Apple M1 Max",
|
||||
"Grouped horizontal bars in GB/s. " + "; ".join(desc) + ".", b)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
swar()
|
||||
if OVERVIEW:
|
||||
overview()
|
||||
if TIMELINE:
|
||||
timeline()
|
||||
if CLIFFS:
|
||||
cliffs()
|
||||
if VIEW:
|
||||
view()
|
||||
Reference in new issue
Block a user