Profile ghc -j with an eye for performance issues
ghc -j
doesn't seem to scale as well as it could. Reports claim that even packages with embarasssingly parallel module structures (e.g. highlighting-kate
) only scale out to three or so processors.
Profiling a parallel build would be a useful first step to finding out why.
Trac metadata
Trac field | Value |
---|---|
Version | 7.10.1 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |