From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Wyzer Subject: Re: abysmal performance Date: Sat, 30 Apr 2011 22:51:05 +0200 Message-ID: <1304196442-sup-4886@localhost> References: <1304088305-sup-3784@localhost> <1304089239-sup-5110@think> <1304100271-sup-4177@localhost> <1304100862-sup-1493@think> <1304107977-sup-3815@localhost> <1304110058-sup-7292@think> <1304146193-sup-2200@localhost> Content-Type: text/plain; charset=UTF-8 To: linux-btrfs Return-path: In-reply-to: <1304146193-sup-2200@localhost> List-ID: Resending this to the list since I did not notice that I just responded to Chris Mason for the last emails... Excerpts from John Wyzer's message of Sat Apr 30 08:57:06 +0200 2011: > Excerpts from Chris Mason's message of Fri Apr 29 22:48:58 +0200 2011: > > > > > > http://bayimg.com/NahClAadn > > > http://bayimg.com/NahcnaADn > > > http://bayimg.com/NAhCoAAdN > > > http://bayimg.com/PahCaaAdN > > > > Ok, you have three processes that may be causing trouble. We probably > > just need to defragment the files related to these three and life will > > be good again. > > > > 1) Firefox. firefox has a bunch of little databases that are going to > > fragment badly as we cow. > > > > 2) sup. Is this the sup email client? > > > > 3) vmware. Are you hosting vmware virtual images on btrfs too? > > @2: yes, the sup mail client, polling for messages. > @3: yes, from some tasks I use vmware > > But those were just the active applications at the time of taking the screenshot. > I have the same thing with opera or during snapshot deletion or practically > anything that involves some disk access. > I'll probably get all atimes for files on my system, sort and defragment the > files in order of importance... > We'll see how btrfs behaves afterwards...