From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vivek Goyal Subject: Re: [PATCH 23/23] io-controller: debug elevator fair queuing support Date: Mon, 31 Aug 2009 17:01:54 -0400 Message-ID: <20090831210154.GA8229__12887.4663882472$1251752702$gmane$org@redhat.com> References: <1251495072-7780-1-git-send-email-vgoyal@redhat.com> <1251495072-7780-24-git-send-email-vgoyal@redhat.com> <4A9C3951.8020302@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <4A9C3951.8020302-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Rik van Riel Cc: dhaval-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, dm-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, jens.axboe-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org, agk-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, balbir-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, paolo.valente-rcYM44yAMweonA0d6jMUrA@public.gmane.org, jmarchan-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, fernando-gVGce1chcLdL9jVzuh4AOg@public.gmane.org, jmoyer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, mingo-X9Un+BFzKDI@public.gmane.org, fchecconi-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, righi.andrea-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org List-Id: containers.vger.kernel.org On Mon, Aug 31, 2009 at 04:57:53PM -0400, Rik van Riel wrote: > Vivek Goyal wrote: >> o More debugging help to debug elevator fair queuing support. Enabled under >> CONFIG_DEBUG_ELV_FAIR_QUEUING. Currently it prints vdisktime related >> trace messages in blktrace. >> >> Signed-off-by: Vivek Goyal > > Is this meant for merging upstream, or just as a temporary > debugging help while this sits in a subsystem tree or -mm? I think it would be good if this also is merged upstream. A useful debugging help to track fairness and latecy related issues. Thanks Vivek