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[Xen-users] Choosing best io elevator/scheduler for dom0

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Choosing best io elevator/scheduler for dom0
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: 2006年3月23日 09:56:26 +0200
Delivery-date: 2006年3月23日 07:57:56 +0000
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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
 
 ^
 . .
 Linux
 / - \
 Choice.of.the
 .Next.Generation.
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