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  • Glasgow Haskell CompilerGlasgow Haskell Compiler
  • GHCGHC
  • Issues
  • #1623
Closed
Open
Issue created Aug 21, 2007 by Ian Lynagh <igloo@earth.li>@trac-igloo

ghci: 20 wakeups per second

From http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=438371 :

According to powertop on my laptop, ghci seems to wake up 20 times per
second looking for input when sitting at the command prompt.  This has
negative impact on battery life, as discussed on the powertop page.

I don't think the change in the HEAD to using timer_create rather than setitimer will have fixed this, but I can't currently run powertop so haven't been able to confirm that.

Trac metadata
Trac field Value
Version 6.6.1
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
Differential revisions
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Operating system Unknown
Architecture Unknown
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