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https://github.com/nlohmann/json.git
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Niels Lohmann
5f49306727
Measure everything again against develop with the open pull requests of 11-03 (suite, timeline, comparison on the Mac and on x86-64, compile times, stream gap), add the suite on an Intel MacBook Pro as a check, mark the ways that keep number text as "N" in the use-case charts, move the loop-shape box to theme 5, and apply the style and wording fixes of the review. Signed-off-by: Niels Lohmann <mail@nlohmann.me>
67 lines
2.8 KiB
Python
67 lines
2.8 KiB
Python
"""Prints the tables of Appendix E of home/blog/how_3_13_0_got_faster.md (comparison with other libraries) as Markdown,
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from data/perf_usecases_<platform>.json, which tests/benchmarks/json_view/others/summarize.py --json writes.
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Usage: python3 scripts/figures/perf_blog_tables.py <platform> [title]
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"""
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import json
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import sys
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from pathlib import Path
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from perf_blog import normalize_usecases
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HERE = Path(__file__).resolve().parent
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FILES = [("twitter", "`twitter.json`"), ("citm_catalog", "`citm_catalog.json`"), ("canada", "`canada.json`"),
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("jeopardy", "`jeopardy.json`"), ("status", "one status (2.5 KB)")]
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USE_CASES = [("validate", "validate"), ("sum", "sum"), ("select", "select"), ("edit", "edit"), ("minify", "minify"),
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("write", "write")]
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NAMES = {"nlohmann json_document": "nlohmann/json `json_document`", "nlohmann json": "nlohmann/json `json`",
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"sonic-rs": "sonic-rs (Rust)", "simd-json": "simd-json (Rust)", "serde_json": "serde_json (Rust)"}
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def fmt(us):
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if us >= 10000:
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return "{:,.0f}".format(us)
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if us >= 100:
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return "{:,.0f}".format(us)
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return "%.1f" % us
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def table(data, uc, indent):
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files = [f for f, _ in FILES if f in data.get(uc, {})]
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libs = list(data[uc][files[0]].keys())
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jd = lambda f: data[uc][f]["nlohmann json_document"]["best"]["us"]
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libs.sort(key=lambda l: sum(((data[uc][f][l]["best"] or data[uc][f][l]["best_any"])["us"] / jd(f)) for f in files))
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head = "| library | variant | " + " | ".join(n for f, n in FILES if f in files) + " |"
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rows = [head, "| --- | --- | " + " | ".join("--:" for _ in files) + " |"]
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for lib in libs:
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best = [data[uc][f][lib]["best"] for f in files]
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anyv = [data[uc][f][lib]["best_any"] for f in files]
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names = sorted({b["variant"] for b in best if b} | {a["variant"] + " [%s]" % a["mark"] for b, a in zip(best, anyv) if a["mark"] and (not b or a["us"] < b["us"])})
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cells = []
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for b, a in zip(best, anyv):
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c = fmt(b["us"]) if b else "–"
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if a["mark"] and (not b or a["us"] < b["us"] * 0.97):
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c += " (%s %s)" % (a["mark"], fmt(a["us"]))
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cells.append(c)
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bold = "**%s**" if lib == "nlohmann json_document" else "%s"
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rows.append("| %s | %s | %s |" % (bold % NAMES.get(lib, lib), ", ".join(names), " | ".join(cells)))
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return "\n".join(indent + r for r in rows)
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def main():
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platform = sys.argv[1]
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data = json.load((HERE / "data" / ("perf_usecases_%s.json" % platform)).open())
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data = normalize_usecases(data) # the same choices as the figure
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out = []
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for uc, label in USE_CASES:
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if uc not in data:
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continue
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out.append("**%s**\n" % label)
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out.append(table(data, uc, ""))
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out.append("")
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print("\n".join(out))
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if __name__ == "__main__":
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main()
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