From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q2RI809k142941 for ; Tue, 27 Mar 2012 13:08:00 -0500 Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id IhuJUXVGYU8jMn2x for ; Tue, 27 Mar 2012 11:07:59 -0700 (PDT) Date: Tue, 27 Mar 2012 13:18:45 -0400 From: Vivek Goyal Subject: Re: [PATCH] xfs: Do background CIL flushes via a workqueue Message-ID: <20120327171845.GD28707@redhat.com> References: <1332841605-3538-1-git-send-email-david@fromorbit.com> <20120327143127.GA11434@infradead.org> <20120327155759.GB28707@redhat.com> <20120327160300.GA22555@infradead.org> <20120327161941.GC28707@redhat.com> <20120327170309.GA6712@infradead.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20120327170309.GA6712@infradead.org> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Christoph Hellwig Cc: xfs@oss.sgi.com On Tue, Mar 27, 2012 at 01:03:09PM -0400, Christoph Hellwig wrote: > On Tue, Mar 27, 2012 at 12:19:41PM -0400, Vivek Goyal wrote: > > So xfs either need to resort to similar optimizaiton where IO type from > > both the process context is of same type or try to do all the IO from > > one process context. > > All XFS log I/O is marked SYNC and (FUA and/or FLUSH). In that case I am not sure if XFS should still face the idling issue. If it does, then we need to debug it further and see why the fix is not working. Dave, any chance of 10 seconds of blktrace data when this problem happens? Thanks Vivek _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs