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Date: Sat, 24 Jul 2010 12:26:09 -0700 (PDT)
From: Doug Barton <dougb@FreeBSD.org>
To: Alexander Motin <mav@FreeBSD.org>
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
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Subject: Re: svn commit: r210444 - head/sys/x86/x86
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On Sat, 24 Jul 2010, Alexander Motin wrote:

> Author: mav
> Date: Sat Jul 24 10:49:59 2010
> New Revision: 210444
> URL: http://svn.freebsd.org/changeset/base/210444
>
> Log:
>  Increment td->td_intr_nesting_level for LAPIC timer interrupts. Among other
>  things it hints SCHED_ULE to run clock swi handlers on their native CPUs,
>  avoiding many unneeded IPI_PREEMPT calls.

Will this help SCHED_4BSD at all? I'm finding it to be slightly better 
for interactivity on a loaded system, but frankly at this point they 
both leave a lot to be desired.


Doug

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