[wgpu-core] Replace usage of PreHashedMap with FastHashMap
#6541
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
ErichDonGubler
added
type: bug
|
@gfx-rs/wgpu: I'm not sure if we need a |
|
yeah would be nice to have it listed as a bugfix! |
jamienicol
force-pushed
the
preHashedMap
branch
from
4c8d7fe to
97fce62
Compare
|
Added the changelog entry (and consolidated the duplicated |
|
Just needs conflicts resolved, and auto-merge should do the rest. |
PreHashedMap was introduced as a performance optimization. It is, however, potentially unsound as it cannot distinguish between keys that are not equal yet have the same hash. This patch replaces its usage with a simple FastHashMap, which should be good enough. If this is found to cause real life performance issues down the line then we can figure out a better solution.
jamienicol
force-pushed
the
preHashedMap
branch
from
97fce62 to
de8e682
Compare
done
heh, this was already done I just hadn't rebased |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Connections
Fixes #6373
Description
PreHashedMap was introduced as a performance optimization. It is, however, potentially unsound as it cannot distinguish between keys that are not equal yet have the same hash. This patch replaces its usage with a simple FastHashMap, which should be good enough. If this is found to cause real life performance issues down the line then we can figure out a better solution.
Testing
cargo xtask test passes
Checklist
cargo fmt.taplo format.cargo clippy. If applicable, add:--target wasm32-unknown-unknown--target wasm32-unknown-emscriptencargo xtask testto run tests.CHANGELOG.md. See simple instructions inside file.