reproducer for test suite blowup to hand off to ghc folk
Nobody has claimed this yet.
Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 20/100
- Issue type
- Bug
- Clarity
- Needs clarification
- Activity status
- Stale
- Tech stack
- haskell
- Domain
- compilers, performance
Research direction
Start by reviewing the recently fixed blowup and the proposed Test.Vector.Unboxed module as a candidate reproducer. Build and profile it with ghc master at O1 and O2, comparing reported memory use with observed RAM usage. Done means a small, reproducible case suitable for handoff to the GHC team.
Written by the indexing model from the issue text.
Description
I was talking with @AndreasPK , and a more polite version of the blowup that we fixed recently that can easily be built / profiled with ghc master and has < 3gb memusage would be ideal.
@lehins any thoughts on this? (would a version of Test.Vector.Unboxed module work?)
the pre split into modules blowup had the bizzare extreme ~ 16-17gb ram usage, though ghc would only report using ~ 3-6gb?
current theory: O1/O2 have some space leaks that this code exercises.
- Dominant language
- Haskell
- Stars
- 401
- Forks
- 145
- PR merge metrics
- No merged PRs in 30d
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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