Messages in this thread | | | Date | Thu, 2 Oct 2008 06:12:36 -0700 | From | Arjan van de Ven <> | Subject | Re: [PATCH] Give kjournald a IOPRIO_CLASS_RT io priority |
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On Wed, 1 Oct 2008 23:55:01 -0700 > > I've forgotten where that code is now, but I don't think it was ever > revisited. It should be. > > So. Where are these atime updaters getting blocked?
my reproducer is sadly very simple (claws-mail is my mail client that uses maildir)
Process claws-mail (4896) Total: 2829.7 msec EXT3: Waiting for journal access 2491.0 msec 88.4 % Writing back inodes 160.9 msec 5.7 % synchronous write 78.8 msec 3.0 %
is an example of such a trace (this is with patch, without patch the numbers are about 3x bigger)
Waiting for journal access is "journal_get_write_access" Writing back inodes is "writeback_inodes" synchronous write is "do_sync_write"
-- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org
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