From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Mason Subject: Re: ceph on btrfs [was Re: ceph on non-btrfs file systems] Date: Tue, 25 Oct 2011 16:15:45 -0400 Message-ID: <20111025201545.GA4082@shiny.Mikenopa.local> References: <20111024195147.GB31264@dhcp231-156.rdu.redhat.com> <20111025122320.GA3703@dhcp231-156.rdu.redhat.com> <20111025150512.GC3703@dhcp231-156.rdu.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Christian Brunner , Sage Weil , ceph-devel@vger.kernel.org, linux-btrfs@vger.kernel.org To: Josef Bacik Return-path: In-Reply-To: <20111025150512.GC3703@dhcp231-156.rdu.redhat.com> List-ID: On Tue, Oct 25, 2011 at 11:05:12AM -0400, Josef Bacik wrote: > On Tue, Oct 25, 2011 at 04:25:02PM +0200, Christian Brunner wrote: > > > > Attached is a perf-report. I have included the whole report, so that > > you can see the difference between the good and the bad > > btrfs-endio-wri. > > > > We also shouldn't be running run_ordered_operations, man this is screwed up, > thanks so much for this, I should be able to nail this down pretty easily. > Thanks, Looks like we're getting there from reserve_metadata_bytes when we join the transaction? -chris