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Created on 2014-10-25 19:34 by pitrou, last changed 2022-04-11 14:58 by admin. This issue is now closed.
| Files | ||||
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| File name | Uploaded | Description | Edit | |
| precision.patch | pitrou, 2014-10-25 19:34 | |||
| Messages (5) | |||
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| msg230011 - (view) | Author: Antoine Pitrou (pitrou) *  |
Date: 2014-10-25 19:34 | |
This patch tries to improve precision of benchmarks in the benchmark suite by two measures: - select the best timer for the pair of interpreters (i.e. perf_counter() if possible) - make hashing deterministic to avoid fluctuations between runs |
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| msg230013 - (view) | Author: Georg Brandl (georg.brandl) * |
Date: 2014-10-25 20:05 | |
LGTM. |
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| msg230014 - (view) | Author: Antoine Pitrou (pitrou) * |
Date: 2014-10-25 20:22 | |
Pushed in dc7d29be5a9e. |
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| msg230019 - (view) | Author: Serhiy Storchaka (serhiy.storchaka) * |
Date: 2014-10-25 21:48 | |
For more precise results it may be worth to run interpreters several times with random hash seed and then select the best time. Different interpreters can have different effect on the same seed. |
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| msg230020 - (view) | Author: Antoine Pitrou (pitrou) * |
Date: 2014-10-25 23:13 | |
You thereotically need 2**63 runs to select the best answer, though. You don't know how the distribution of hash seeds can influence the results, which means mere sampling may not be sufficient. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:58:09 | admin | set | github: 66916 |
| 2014-10-25 23:13:56 | pitrou | set | messages: + msg230020 |
| 2014-10-25 21:48:42 | serhiy.storchaka | set | messages: + msg230019 |
| 2014-10-25 20:22:32 | pitrou | set | status: open -> closed resolution: fixed messages: + msg230014 stage: patch review -> resolved |
| 2014-10-25 20:05:58 | georg.brandl | set | nosy:
+ georg.brandl messages: + msg230013 |
| 2014-10-25 19:34:32 | pitrou | create | |