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Date: Thu, 16 Jun 2011 08:41:55 +0300
Message-ID: <BANLkTikmUpF_fsZcpiuMzZQZa17U-cPQAw@mail.gmail.com>
Subject: Re: [ANNOUNCE] Native Linux KVM tool v2
From: Pekka Enberg <penberg@kernel.org>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: Alexander Graf <agraf@suse.de>, Prasad Joshi <prasadjoshi124@gmail.com>,
        Avi Kivity <avi@redhat.com>, linux-kernel@vger.kernel.org,
        kvm@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Ingo Molnar <mingo@elte.hu>, Sasha Levin <levinsasha928@gmail.com>,
        Cyrill Gorcunov <gorcunov@gmail.com>, Asias He <asias.hejun@gmail.com>,
        Jens Axboe <jaxboe@fusionio.com>
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On Thu, Jun 16, 2011 at 1:44 AM, Anthony Liguori <anthony@codemonkey.ws> wrote:
>> That's probably why it's fast, it doesn't preserve data integrity :(
>
> Actually, I misread the code. ?It does unstable writes but it does do
> fsync() on FLUSH.

Yes. That's fine, right? Or did we misread how virtio block devices
are supposed to work?

Btw, unstable writes doesn't really explain why *read* performance is better.

                            Pekka
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