#3582: Compiling with optimizations on hurts performance
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Reporter: gchrupala | Owner:
Type: bug | Status: closed
Priority: normal | Milestone:
Component: Compiler | Version: 6.10.4
Severity: major | Resolution: fixed
Keywords: optimization | Difficulty: Unknown
Testcase: | Os: Unknown/Multiple
Architecture: Unknown/Multiple |
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Changes (by igloo):
* status: new => closed
* difficulty: => Unknown
* resolution: => fixed
Comment:
Thanks for the report. I can reproduce this with 6.10.4, but not the HEAD
or 6.12, so it looks like it's already fixed.
Without optimisation:
{{{
./test2 7.22s user 0.12s system 99% cpu 7.375 total
}}}
With optimisation:
{{{
./test2 5.61s user 0.12s system 99% cpu 5.761 total
}}}
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3582#comment:1>
GHC <http://www.haskell.org/ghc/>
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