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gh-132657: Add free-threading scaling benchmark for copy.copy and copy.deepcopy by eendebakpt · Pull Request #132658 · python/cpython · GitHub

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gh-132657: Add free-threading scaling benchmark for copy.copy and copy.deepcopy #132658

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eendebakpt wants to merge 4 commits into from
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gh-132657: Add free-threading scaling benchmark for copy.copy and copy.deepcopy #132658

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b2fb5ec
Add free-threading scaling bm
eendebakpt Apr 17, 2025
430cb5c
Apply suggestions from code review
eendebakpt Apr 21, 2025
677f126
Merge branch 'main' into ftscaling_copy
eendebakpt Aug 30, 2025
5368547
Merge branch 'main' into ftscaling_copy
colesbury Nov 19, 2025
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15 changes: 14 additions & 1 deletion Tools/ftscalingbench/ftscalingbench.py
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Expand Up @@ -21,6 +21,7 @@
# > echo "0" | sudo tee /sys/devices/system/cpu/cpufreq/boost
#

import copy
import math
import os
import queue
Expand All @@ -39,11 +40,23 @@
in_queues = []
out_queues = []


def register_benchmark(func):
ALL_BENCHMARKS[func.__name__] = func
return func


@register_benchmark
def shallow_copy():
x = [1, 2, 3]
for i in range(200 * WORK_SCALE):
copy.copy(x)

@register_benchmark
def deepcopy():
x = {'list': [1, 2], 'tuple': (1, None)}
for i in range(40 * WORK_SCALE):
copy.deepcopy(x)

@register_benchmark
def object_cfunction():
accu = 0
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