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| author | Victor Stinner <vstinner@python.org> | 2023-11-02 13:29:05 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-11-02 13:29:05 (GMT) |
| commit | 4fe22c73770fe86b01ef7a4f1f38e7e925c0e090 (patch) | |
| tree | 0f9e95952e3a2a9722b4b379e3c5a7d9620014d9 /Misc | |
| parent | 6a0d7b43df12ab4426badd09d2796e66838129ac (diff) | |
| download | cpython-4fe22c73770fe86b01ef7a4f1f38e7e925c0e090.zip cpython-4fe22c73770fe86b01ef7a4f1f38e7e925c0e090.tar.gz cpython-4fe22c73770fe86b01ef7a4f1f38e7e925c0e090.tar.bz2 | |
gh-111482: Use Argument Clinic for clock_gettime() (#111641)
Use Argument Clinic for time.clock_gettime() and
time.clock_gettime_ns() functions.
Benchmark on time.clock_gettime_ns():
import time
import pyperf
runner = pyperf.Runner()
runner.timeit(
'clock_gettime_ns(CLOCK_MONOTONIC_COARSE)',
setup='import time; clock_gettime_ns=time.clock_gettime_ns; CLOCK_MONOTONIC_COARSE=6',
stmt='clock_gettime_ns(CLOCK_MONOTONIC_COARSE)')
Result on Linux with CPU isolation:
Mean +- std dev: [ref] 134 ns +- 1 ns -> [change] 55.7 ns +- 1.4 ns: 2.41x faster
Diffstat (limited to 'Misc')
| -rw-r--r-- | Misc/NEWS.d/next/Library/2023-11-02-12-15-46.gh-issue-111482.FWqZIU.rst | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Misc/NEWS.d/next/Library/2023-11-02-12-15-46.gh-issue-111482.FWqZIU.rst b/Misc/NEWS.d/next/Library/2023-11-02-12-15-46.gh-issue-111482.FWqZIU.rst new file mode 100644 index 0000000..d73e45c --- /dev/null +++ b/Misc/NEWS.d/next/Library/2023-11-02-12-15-46.gh-issue-111482.FWqZIU.rst @@ -0,0 +1,3 @@ +:mod:`time`: Make :func:`time.clock_gettime()` and +:func:`time.clock_gettime_ns()` functions up to 2x faster by faster calling +convention. Patch by Victor Stinner. |