#6110: Data.Vector.Unboxed performance regression of 7.4.1 relative to 7.0.4
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Reporter: mdgabriel | Owner: pcapriotti
Type: bug | Status: infoneeded
Priority: high | Milestone: 7.4.3
Component: Compiler | Version: 7.4.1
Keywords: Vector Performance Regression | Os: Linux
Architecture: x86 | Failure: Runtime
performance bug
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: #6111 |
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Comment(by mdgabriel):
@pcapriotti: I built a 7.4.1 from source with Data.Vector and obtained the
same results. I added some SCC manually but obtained no insights. +RTS
-t -RTS etc simply told me that all my time is mutator time. So, either
1. Your version of 7.4.1 is compiled differently than mine, or
2. Your environment is different from mine such that the difference
manifests itself only with 7.4.1 and not 7.0.4.
3. Something else?
Is there some information you would wish that I have not given?
- Marcus
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6110#comment:7>
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