Comments (1)
perhaps std deviation should be involved?
- To be statistically correct, you would have first to do sufficient retries to estimate, if the standard deviation is the correct guess.
https://stats.stackexchange.com/questions/108578/what-does-standard-deviation-tell-us-in-non-normal-distribution.
This may or may not be practical depending on the system behavior (influences of other processes may make the exact distribution unobservable in practice), so it is usually skipped and Gaussean distribution assumed. - The next thing is the to estimate confidence intervals, ie theory here https://medium.com/swlh/a-simple-refresher-on-confidence-intervals-1e29a8580697 and more practical motivation https://www.brainvitamins.net/blog/confidence-intervals-for-benchmarks/, however the Welch test with abbreviated context and optional explanation would be much better, see #2.
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Related Issues (20)
- figure out how to make the code less janky with regards to formatted printing HOT 2
- mad max mode
- do something with cache references and cache misses together
- blank line between benchmarks and summary section
- detect when perf is permission denied and give the user a helpful message HOT 5
- add an option to show ratio instead of percent delta (possibly by default) HOT 2
- machine-friendly output format HOT 1
- integer overflow when trying to print result of subsequent benchmark HOT 1
- Options that can make poop exit with error code
- Use some max number of sigfigs HOT 1
- reached unreachable code (in VM) HOT 5
- install poop HOT 2
- Build Instructions are poor HOT 1
- flag for setting command line parameters
- look into CPU shielding HOT 2
- Add `--export`: get summary statistics and timings
- Why the difference between the counter values reported by poop and perf-stat? HOT 1
- Zig standard library tests deadlock when run via `poop`
- `PILE OF POO` may not be available on some systems HOT 1
- Update for Zig breaking change: per-Module HOT 1
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