Message378543
random_bench.py has really weird timings. Example:
(...)
Run 15: 1 warmup, 3 values, 2^15 loops
- warmup 1: 3.05 us (+504%)
- value 1: 42.8 ns (-92%)
- value 2: 1.18 us (+133%)
- value 3: 293 ns (-42%)
(...)
Run 21: 1 warmup, 3 values, 2^15 loops
- warmup 1: 167 us (+1073%)
- value 1: 162 ns (-99%)
- value 2: 39.1 us (+174%)
- value 3: 3.53 us (-75%)
needle=3: Mean +- std dev: 17.2 us +- 39.6 us
How is it possible that in the same process (same "Run"), timing changes between 42 ns and 1 180 ns? The std dev is really large. |
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Date |
User |
Action |
Args |
2020-10-13 07:13:44 | vstinner | set | recipients:
+ vstinner, tim.peters, pmpp, serhiy.storchaka, josh.r, ammar2, Dennis Sweeney, Zeturic |
2020-10-13 07:13:44 | vstinner | set | messageid: <1602573224.78.0.9016562552.issue41972@roundup.psfhosted.org> |
2020-10-13 07:13:44 | vstinner | link | issue41972 messages |
2020-10-13 07:13:44 | vstinner | create | |
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