From: Samuel Thibault <samuel.thibault@eu.citrix.com>
To: "Daniel P. Berrange" <berrange@redhat.com>
Cc: Laurent Vivier <Laurent.Vivier@bull.net>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 0/2] Open disk images with O_DIRECT
Date: Wed, 28 Nov 2007 15:17:01 +0000 [thread overview]
Message-ID: <20071128151701.GJ4083@implementation.uk.xensource.com> (raw)
In-Reply-To: <20071128150820.GC7379@redhat.com>
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.
Samuel
prev parent reply other threads:[~2007-11-28 15:17 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-28 14:02 [Qemu-devel] [PATCH 0/2] Open disk images with O_DIRECT Laurent Vivier
2007-11-28 14:02 ` [Qemu-devel] [PATCH 1/2] Add "directio" parameter to "-drive" Laurent Vivier
2007-11-28 14:02 ` [Qemu-devel] [PATCH 2/2] Direct IDE I/O Laurent Vivier
2007-11-28 14:24 ` [Qemu-devel] [PATCH 1/2] Add "directio" parameter to "-drive" Samuel Thibault
2007-11-28 15:00 ` Laurent Vivier
2007-11-28 15:08 ` Samuel Thibault
2007-11-29 9:40 ` Laurent Vivier
2007-11-28 14:27 ` [Qemu-devel] [PATCH 0/2] Open disk images with O_DIRECT Daniel P. Berrange
2007-11-28 14:34 ` Samuel Thibault
2007-11-28 14:58 ` Anthony Liguori
2007-11-28 15:08 ` Daniel P. Berrange
2007-11-28 15:17 ` Samuel Thibault [this message]
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