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Add additional gc benchmark with pickletools (#437) #438

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Add additional gc benchmark with pickletools (#437)
pgdr Nov 3, 2025
634229c
Use TemporaryDirectory context manager
pgdr Nov 5, 2025
6e8f8f8
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pgdr Nov 12, 2025
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Use TemporaryDirectory context manager
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@pgdr
pgdr committed Nov 5, 2025
commit 634229cdf0b32846f5f4eb8d5e9e88f06148bfa5
22 changes: 10 additions & 12 deletions pyperformance/data-files/benchmarks/bm_pickle_opt/run_benchmark.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
"""The background for this benchmark is that the garbage collection in Python 3.14
had a performance regression, see
"""The background for this benchmark is that the garbage collection in
Python 3.14.0 had a performance regression, see

* https://github.com/python/cpython/issues/140175
* https://github.com/python/cpython/issues/139951
Expand All @@ -8,13 +8,12 @@

import tempfile
from pathlib import Path

import pyperf
import pickle
import pickletools


def setup(fname, N):
import pickle

x = {}
for i in range(1, N):
x[i] = f"ii{i:>07}"
Expand All @@ -24,8 +23,6 @@ def setup(fname, N):


def run(fname):
import pickletools

with open(fname, "rb") as fh:
p = fh.read()

Expand All @@ -38,8 +35,9 @@ def run(fname):
if __name__ == "__main__":
runner = pyperf.Runner()
N = 1_000_000
tmp_path = Path(tempfile.mkdtemp())
fname = tmp_path / "pickle"
setup(fname, N)
runner.metadata["description"] = "Pickletools optimize"
runner.bench_func("pickle_opt", run, fname)
with tempfile.TemporaryDirectory() as tmp:
tmp_path = Path(tmp)
fname = tmp_path / "pickle"
setup(fname, N)
runner.metadata["description"] = "Pickletools optimize"
runner.bench_func("pickle_opt", run, fname)
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