lkml.org 
[lkml]   [2004]   [Aug]   [10]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateMon, 9 Aug 2004 23:32:54 -0700
FromWilliam Lee Irwin III <>
SubjectRe: 2.6.8-rc3-mm2
On Sun, Aug 08, 2004 at 03:29:36PM -0700, Andrew Morton wrote:
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.8-rc3/2.6.8-rc3-mm2/
> - Added a little patch to the CPU scheduler which disables its array
>   switching.
>   This is purely experimental and will cause high-priority tasks to starve
>   lower-priority tasks indefinitely.  It is here to determine whether it is
>   this aspect of the scheduler which caused the staircase scheduler to exhibit
>   improved throughput in some tests on NUMAq.

This patch can't do what the changelog claims it does; if it did, its
implementation of yield() would render the yielding process forever
unrunnable, plus the active/expired reassignment on sched.c:2672 would
have gone away.  What is it actually meant to do?


-- wli
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:05    [from the cache]
©2003-2008