Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753664AbXIYN4l (ORCPT ); Tue, 25 Sep 2007 09:56:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751407AbXIYN4c (ORCPT ); Tue, 25 Sep 2007 09:56:32 -0400 Received: from e35.co.us.ibm.com ([32.97.110.153]:34833 "EHLO e35.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751385AbXIYN4b (ORCPT ); Tue, 25 Sep 2007 09:56:31 -0400 Date: Tue, 25 Sep 2007 19:37:07 +0530 From: Srivatsa Vaddagiri To: Mike Galbraith Cc: Ingo Molnar , linux-kernel@vger.kernel.org, Peter Zijlstra , Dhaval Giani , Dmitry Adamushko , Andrew Morton Subject: Re: [git] CFS-devel, latest code Message-ID: <20070925140707.GO26289@linux.vnet.ibm.com> Reply-To: vatsa@linux.vnet.ibm.com References: <1190705759.11910.10.camel@Homer.simpson.net> <1190709207.11226.6.camel@Homer.simpson.net> <20070925091331.GA22905@elte.hu> <20070925094440.GK26289@linux.vnet.ibm.com> <20070925094040.GA28391@elte.hu> <20070925101044.GA923@elte.hu> <20070925102855.GL26289@linux.vnet.ibm.com> <20070925103617.GA3426@elte.hu> <20070925125129.GA26310@linux.vnet.ibm.com> <1190727317.11260.8.camel@Homer.simpson.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1190727317.11260.8.camel@Homer.simpson.net> User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 994 Lines: 24 On Tue, Sep 25, 2007 at 03:35:17PM +0200, Mike Galbraith wrote: > > I tried the following patch. I *think* I see some improvement, wrt > > latency seen when I type on the shell. Before this patch, I noticed > > oddities like "kill -9 chew-max-pid" wont kill chew-max (it is queued in > > runqueue waiting for a looong time to run before it can acknowledge > > signal and exit). With this patch, I don't see such oddities ..So I am hoping > > it fixes the latency problem you are seeing as well. > > http://lkml.org/lkml/2007/9/25/117 plus the below seems to be the SIlver > Bullet for the latencies I was seeing. Cool ..Thanks for the quick feedback. Ingo, do the two patches fix the latency problems you were seeing as well? -- Regards, vatsa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/