Re: RFC: THE OFFLINE SCHEDULER
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- To: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
- Subject: Re: RFC: THE OFFLINE SCHEDULER
- From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
- Date: Mon, 31 Aug 2009 17:33:22 +0200
- Cc: jim owens <jowens@xxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Gregory Haskins <ghaskins@xxxxxxxxxx>, Rik van Riel <riel@xxxxxxxxxx>, Chris Friesen <cfriesen@xxxxxxxxxx>, raz ben yehuda <raziebe@xxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, mingo@xxxxxxx, maximlevitsky@xxxxxxxxx, efault@xxxxxx, wiseman@xxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-rt-users@xxxxxxxxxxxxxxx
- In-reply-to: <alpine.DEB.1.10.0908311520500.26046@V090114053VZO-1>
- References: <1251282598.3514.20.camel@raz> <alpine.DEB.1.10.0908260943090.9924@xxxxxxxxxx> <1251297910.1791.22.camel@maxim-laptop> <1251322663.3882.48.camel@raz> <4A96B997.1070001@xxxxxxxxxx> <alpine.DEB.1.10.0908271257270.17470@xxxxxxxxxx> <alpine.LFD.2.00.0908272242500.2888@xxxxxxxxxxxxxxxxxxxxx> <4A97071F.5070804@xxxxxxxxxx> <4A973DAE.4020508@xxxxxxxxxx> <4A975025.8030500@xxxxxxxxxx> <4A975CC4.1090208@xxxxxxxxxx> <alpine.LFD.2.00.0908281218560.2888@xxxxxxxxxxxxxxxxxxxxx> <alpine.DEB.1.10.0908281446520.7317@xxxxxxxxxx> <alpine.LFD.2.00.0908282100040.19335@xxxxxxxxxxxxxxxxxxxxx> <alpine.DEB.1.10.0908281551450.17784@xxxxxxxxxx> <alpine.LFD.2.00.0908282158100.19335@xxxxxxxxxxxxxxxxxxxxx> <alpine.DEB.1.10.0908281619520.15573@xxxxxxxxxx> <4A995F53.50509@xxxxxx> <alpine.DEB.1.10.0908311520500.26046@V090114053VZO-1>
On Mon, 2009-08-31 at 15:22 -0400, Christoph Lameter wrote:
>
> Stats updates are performed if needed or not. Same with slab expiration.
> Thats why its necessary to Offline the cpu.
Or we fix it to not do anything when not needed.
Come-on Christoph this ain't rocket science.
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