Hi, I recently upgraded from 2.6.23.x to 2.6.24 and found that whereas with 2.6.23.x I could have multiple "make -j3" compilation runs going in the background with no real problems (on a dual-core Core 2), with 2.6.24 I get multiple-second lags when trying to switch tasks in KDE. I did a git bisect starting from 9b73e76f3cf63379dcf45fcd4f112f5812418d0a in Linus's 2.6.25 tree in the hope that the recent scheduler merge might have fixed the problem, but no such luck. Instead, git bisect points its all-knowing finger at
commit 67e9fb2a39a1d454218d50383094940982be138f
Author: Peter Zijlstra <[EMAIL PROTECTED]>
Date: Mon Oct 15 17:00:10 2007 +0200
sched: add vslice
add vslice: the load-dependent "virtual slice" a task should
run ideally, so that the observed latency stays within the
sched_latency window.
Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
Signed-off-by: Peter Zijlstra <[EMAIL PROTECTED]>
Reviewed-by: Thomas Gleixner <[EMAIL PROTECTED]>
A straight-forward git revert crashes at boot, so I don't have a patch to
offer. :-/
(Please keep me CC'ed, since I'm not subscribed to LKML.)
Thanks for your help,
-- BKS
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