#5991: regression: huge number of wakeups in xmonad
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Reporter: dmwit | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.4.1 | Keywords:
Os: Linux | Architecture: Unknown/Multiple
Failure: Runtime performance bug | Testcase:
Blockedby: | Blocking:
Related: |
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People using GHC 7.4 have been complaining that xmonad causes a huge
number of wakeups (about 100 wakeups/s, according to one complaint, and
30% of all wakeups on the entire machine according to another). A
workaround of making xmonad compile with -rtsopts and adding +RTS -V0
seems to hide this problem, but this is very inconvenient because it means
the user can't use xmonad's own recompilation and restart mechanisms.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5991>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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