perf(internal/bits): Speedup extended commit.BitArray() (backport #2959) #2982
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Speedup ExtendedCommit.BitArray() by making a direct constructor that does not go through mutexes. I expect this to be a 10x performance improvement. (It also removes the duffcopies and reduces setIndex proportion of time here) This removes this time (which is mostly coming from mutex calls):  Later on we should instead make an API that lets us randomly sample from a bit array with no bit array copying needed. (But that makes the interface messier) --- #### PR checklist - [x] Tests written/updated - [x] Changelog entry added in `.changelog` (we use [unclog](https://github.com/informalsystems/unclog) to manage our changelog) - [x] Updated relevant documentation (`docs/` or `spec/`) and code comments - [x] Title follows the [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/) spec (cherry picked from commit edb297b) # Conflicts: # libs/bits/bit_array.go # libs/bits/bit_array_test.go
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Cherry-pick of edb297b has failed: To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally |
melekes
approved these changes
May 2, 2024
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Speedup ExtendedCommit.BitArray() by making a direct constructor that does not go through mutexes. I expect this to be a 10x performance improvement. (It also removes the duffcopies and reduces setIndex proportion of time here)
This removes this time (which is mostly coming from mutex calls):
Later on we should instead make an API that lets us randomly sample from a bit array with no bit array copying needed. (But that makes the interface messier)
PR checklist
.changelog(we use unclog to manage our changelog)docs/orspec/) and code commentsThis is an automatic backport of pull request #2959 done by [Mergify](https://mergify.com).