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Benchmark editing documents with json_view, yyjson, Boost.JSON, and json

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bench_edit.cpp joins the comparison: parse, apply the same logical edits
with each library's own API (a handful at fixed places, or one in every
record), and serialize; all outputs must describe the same value.
compare.py builds and runs it with the other two programs.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann
2026-09-29 14:03:17 +02:00
parent 5d25f863c0
commit 1e212bc50c
3 changed files with 587 additions and 4 deletions
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tests/benchmarks/json_view/compare.py
+5 -3
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@@ -9,7 +9,7 @@
"""Compare json_view with yyjson, simdjson, Boost.JSON, and json::parse.
Builds bench_view.cpp and bench_corpus.cpp against the include/ directory of
Builds bench_view.cpp, bench_corpus.cpp, and bench_edit.cpp against the include/ directory of
this checkout, runs them, and writes the results with everything needed to
reproduce them (date, commit, CPU, OS, compiler, library versions, flags) to
results/<date>-<host>.md and .csv next to this script.
@@ -245,7 +245,7 @@ def main():
objects.append(obj)
binaries = {}
for bench in ['bench_view', 'bench_corpus']:
for bench in ['bench_view', 'bench_corpus', 'bench_edit']:
exe = os.path.join(args.build_dir, bench)
run([cxx] + flags + include + [os.path.join(HERE, bench + '.cpp')] + objects + link + ['-o', exe])
binaries[bench] = exe
@@ -257,6 +257,8 @@ def main():
capture_output=True, text=True).stdout
outputs['bench_corpus'] = run([binaries['bench_corpus']] + corpus, cwd=args.build_dir,
capture_output=True, text=True).stdout
outputs['bench_edit'] = run([binaries['bench_edit'], args.data, str(max(1, args.rounds // 2))], cwd=args.build_dir,
capture_output=True, text=True).stdout
for name, text in outputs.items():
print(text)
@@ -288,7 +290,7 @@ def main():
f.write(f'\n## {name}\n\n```\n{text.rstrip()}\n```\n')
with open(stem + '.csv', 'w', encoding='utf-8') as out:
out.write(''.join(f'# {key}: {value}\n' for key, value in meta))
for name in ['bench_view', 'bench_corpus']:
for name in ['bench_view', 'bench_corpus', 'bench_edit']:
path = os.path.join(args.build_dir, name + '.csv')
if os.path.isfile(path):
with open(path, encoding='utf-8') as f: