Re: [PATCH] sched: rsdl check for niced tasks lowering prio level
From: Artur Skawina
Date: Thu Mar 22 2007 - 09:41:34 EST
Con Kolivas wrote:
> Here is the best fix for the bug pointed out. Thanks.
> Ensure niced tasks are not inappropriately limiting sleeping unniced tasks
> by explicitly checking what the best static priority that has run this
> major rotation was.
yes, this made the machine usable again.
After noticing that the context switch rate during a "nice -19 make
-j2" has now been halved vs stock 2.6.20, compiled a kernel under
both and RSDL w/these two patches was 2% faster; so this may be the
right direction after all :)
artur
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