From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751053AbWCOXoG (ORCPT ); Wed, 15 Mar 2006 18:44:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752179AbWCOXoG (ORCPT ); Wed, 15 Mar 2006 18:44:06 -0500 Received: from mustang.oldcity.dca.net ([216.158.38.3]:52958 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S1751053AbWCOXoF (ORCPT ); Wed, 15 Mar 2006 18:44:05 -0500 Subject: Re: libata/sata_nv latency on NVIDIA CK804 [was Re: AMD64 X2 lost ticks on PM timer] From: Lee Revell To: "Bill Rugolsky Jr." Cc: Jeff Garzik , Ingo Molnar , Andi Kleen , Jason Baron , linux-kernel@vger.kernel.org, john stultz In-Reply-To: <20060315231426.GD17817@ti64.telemetry-investments.com> References: <200602280022.40769.darkray@ic3man.com> <4408BEB5.7000407@garzik.org> <20060303234330.GA14401@ti64.telemetry-investments.com> <200603040107.27639.ak@suse.de> <20060315213638.GA17817@ti64.telemetry-investments.com> <20060315215020.GA18241@elte.hu> <20060315221119.GA21775@elte.hu> <44189654.2080607@garzik.org> <20060315224408.GC24074@elte.hu> <44189A3D.5090202@garzik.org> <20060315231426.GD17817@ti64.telemetry-investments.com> Content-Type: text/plain Date: Wed, 15 Mar 2006 18:44:02 -0500 Message-Id: <1142466242.1671.96.camel@mindpipe> Mime-Version: 1.0 X-Mailer: Evolution 2.6.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2006-03-15 at 18:14 -0500, Bill Rugolsky Jr. wrote: > [Meanwhile, I still have to switch contexts and look at the long > softirq latencies that at first glance appear to be due to the use of > mempool by the RAID1 bio code.] Can you post traces of them somewhere? There are no long running softirqs in the two you posted (the worst is only 200 usecs or so). Lee