Messages in this thread | | | Subject | Re: [PATCH] mm: yield during swap prefetching | From | Lee Revell <> | Date | Tue, 07 Mar 2006 21:27:13 -0500 |
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On Wed, 2006-03-08 at 13:22 +1100, Con Kolivas wrote: > > How is the scheduler supposed to know to penalize a kernel compile > > taking 100% CPU but not a game using 100% CPU? > > Because being a serious desktop operating system that we are (bwahahahaha) > means the user should not have special privileges to run something as simple > as a game. Games should not need special scheduling classes. We can always > use 'nice' for a compile though. Real time audio is a completely different > world to this.
Actually recent distros like the upcoming Ubuntu Dapper support the new RLIMIT_NICE and RLIMIT_RTPRIO so this would Just Work without any special privileges (well, not root anyway - you'd have to put the user in the right group and add one line to /etc/security/limits.conf).
I think OSX also uses special scheduling classes for stuff with RT constraints.
The only barrier I see is that games aren't specifically written to take advantage of RT scheduling because historically it's only been available to root.
Lee
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