Pasi Kärkkäinen
2006-Mar-23  07:56 UTC
[Xen-users] Choosing best io elevator/scheduler for dom0
Hi!
I''m trying to figure out what would be the best io elevator/scheduler
for
dom0.
As far as I know, each domU virtual disk device is seen as single process in
dom0.. correct?
Then, say, I have domU with 3 devices (sda1,sda2,sda3).. and I access all of
those 3 devices in domU.. that would make 3 processes doing io in dom0?
elevator=cfg would be a good pick to share the io load fairly? Or
elevator=deadline to minimize the io latency..
Thanks for your comments!
(btw: http://www.redhat.com/magazine/008jun05/features/schedulers/
contains db benchmark also using different elevators)
-- Pasi
       
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                                 Linux
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                             Choice.of.the
                           .Next.Generation.
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