Run regression tests in parallel#713
Merged
sternenseemann merged 1 commit intoNixOS:masterfrom Mar 26, 2026
Merged
Conversation
alexfmpe
commented
Mar 25, 2026
| , tasty-golden | ||
| default-language: Haskell2010 | ||
| build-tools: cabal2nix | ||
| ghc-options: -threaded -with-rtsopts=-K64K |
Member
Author
There was a problem hiding this comment.
I don't think this -K64K had any effect without -rtsopts but I kept it
See https://downloads.haskell.org/ghc/latest/docs/users_guide/phases.html#ghc-flag-rtsopts-none-some-all-ignore-ignoreAll
Member
There was a problem hiding this comment.
I wonder why -K was added.
Contributor
alexfmpe
force-pushed
the
parallel-tests
branch
from
05a385d to
ffa7875
Compare
sternenseemann
approved these changes
Mar 25, 2026
This file contains hidden or 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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
This makes the
regression-testsuite 4-7x faster in my mac and linux machines.Oddly, trying to do this on the hspec tests actually makes them slightly slower, even with
parallel.