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Re: [Qemu-devel] [PATCH 0/2] Open disk images with O_DIRECT

From: Samuel Thibault
Subject: Re: [Qemu-devel] [PATCH 0/2] Open disk images with O_DIRECT
Date: Wed, 28 Nov 2007 15:17:01 +0000
User-agent: Mutt/1.5.12-2006-07-14

Daniel P. Berrange, le Wed 28 Nov 2007 15:08:20 +0000, a écrit :
> > sometimes it is not because the guest is not so i/o friendly
> > and hence using the host page/buffer cache is useful.
> I don't buy that - all OS already do I/O caching because its useful even
> on baremetal.

Well, I can see the difference when installing windows for instance.


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