perf: Make every gossip thread use its own randomness instance, reduc… #132
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…… (backport #77) (#82) * perf: Make every gossip thread use its own randomness instance, reducing contention (cometbft#3006) Closes cometbft#3005 As noted in that issue, we currently are doing extra CPU overhead and mutex contention for getting a random number. This PR removes this overhead by making every performance sensitive thread have its own rand instance. In a subsequent PR, we can cleanup all the testing usages, and likely just entirely delete our internal randomness package. I didn't do that in this PR to keep it straightforward to verify. --- - [x] Tests written/updated - [ ] Changelog entry added in `.changelog` (we use [unclog](https://github.com/informalsystems/unclog) to manage our changelog) - [ ] Updated relevant documentation (`docs/` or `spec/`) and code comments - [ ] Title follows the [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/) spec (cherry picked from commit f55b9f4) * Add Changelgo (cherry picked from commit ce04f04) * Fix changelog further (cherry picked from commit bd34ce6) --------- Co-authored-by: Dev Ojha <ValarDragon@users.noreply.github.com> Co-authored-by: Dev Ojha <dojha@berkeley.edu> Co-authored-by: PaddyMc <paddymchale@hotmail.com>
ValarDragon
approved these changes
Aug 19, 2024
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…… (backport #77) (#82)
Closes cometbft#3005
As noted in that issue, we currently are doing extra CPU overhead and mutex contention for getting a random number. This PR removes this overhead by making every performance sensitive thread have its own rand instance.
In a subsequent PR, we can cleanup all the testing usages, and likely just entirely delete our internal randomness package. I didn't do that in this PR to keep it straightforward to verify.
.changelog(we use unclog to manage our changelog)docs/orspec/) and code comments(cherry picked from commit f55b9f4)
(cherry picked from commit ce04f04)
(cherry picked from commit bd34ce6)
PR checklist
.changelog(we use unclog to manage our changelog)docs/orspec/) and code comments