linux-kernel - Re: [patch] CFS scheduler, -v13

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Date:	Tue, 22 May 2007 18:06:27 -0400
From:	Bill Davidsen <davidsen@....com>
To:	Anant Nitya <kernel@...chanda.info>
CC:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Con Kolivas <kernel@...ivas.org>,
	Nick Piggin <npiggin@...e.de>, Mike Galbraith <efault@....de>,
	Peter Williams <pwil3058@...pond.net.au>,
	Arjan van de Ven <arjan@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [patch] CFS scheduler, -v13

Anant Nitya wrote:
> On Thursday 17 May 2007 23:15:33 Ingo Molnar wrote:
>> i'm pleased to announce release -v13 of the CFS scheduler patchset.
>>
>> The CFS patch against v2.6.22-rc1, v2.6.21.1 or v2.6.20.10 can be
>> downloaded from the usual place:
>>
>>      http://people.redhat.com/mingo/cfs-scheduler/
>>
>> -v13 is a fixes-only release. It fixes a smaller accounting bug, so if
>> you saw small lags during desktop use under certain workloads then
>> please re-check that workload under -v13 too. It also tweaks SMP
>> load-balancing a bit. (Note: the load-balancing artifact reported by
>> Peter Williams is not a CFS-specific problem and he reproduced it in
>> v2.6.21 too. Nevertheless -v13 should be less prone to such artifacts.)
>>
>> I know about no open CFS regression at the moment, so please re-test
>> -v13 and if you still see any problem please re-report it. Thanks!
>>
>> Changes since -v12:
>>
>>  - small tweak: made the "fork flow" of reniced tasks zero-sum
>>
>>  - debugging update: /proc/<PID>/sched is now seqfile based and echoing
>>    0 to it clears the maximum-tracking counters.
>>
>>  - more debugging counters
>>
>>  - small rounding fix to make the statistical average of rounding errors
>>    zero
>>
>>  - scale both the runtime limit and the granularity on SMP too, and make
>>    it dependent on HZ
>>
>>  - misc cleanups
>>
>> As usual, any sort of feedback, bugreport, fix and suggestion is more
>> than welcome,
>>
>> 	Ingo
>> -
> Hi
> Been testing this version of CFS from last an hour or so and still facing same 
> lag problems while browsing sites with heavy JS and or flash usage. Mouse 
> movement is pathetic and audio starts to skip. I haven't face this behavior 
> with CFS till v11.
> 
'm not seeing this, do have a site or two as examples?

-- 
Bill Davidsen <davidsen@....com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot
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