On 12:43, Andreas Dilger wrote: > On 2010-01-27, at 06:06, Andre Noll wrote: > >On 11:19, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > >>After kill -9 of the sync run it took about 20 minutes before > >>it died. > > > >I was seeing similar behaviour on one of our servers, and changing > >the io scheduler to noop fixed things for me. So it seems to be an > >issue with cfq which is somehow triggered by ext4 but not by ext3. > > > >To change the IO scheduler, just execute > > > > echo noop > /sys/block/sda/queue/scheduler > > Andre, could you please also test deadline instead of noop? Sure. I just switched to deadline and the system still feels responsive while rsync is running. With cfq a simple "ls" command took ages to complete. I'll let you know if the system becomes sluggish again after a while. Thanks Andre -- The only person who always got his work done by Friday was Robinson Crusoe
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