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From: 858585 jemmy <jemmy858585@gmail.com>
Date: Mon, 24 Apr 2017 20:44:57 +0800
Message-ID: <CAOGPPbdF-4NJerVk1-BobnbAgZeDms7QtoROU18fWOQ-5Wp01g@mail.gmail.com>
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Subject: Re: [Qemu-devel] [PATCH v6] migration/block: use blk_pwrite_zeroes
 for each zero cluster
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To: Fam Zheng <famz@redhat.com>
Cc: qemu block <qemu-block@nongnu.org>, Juan Quintela <quintela@redhat.com>, qemu-devel <qemu-devel@nongnu.org>, Dave Gilbert <dgilbert@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, Lidong Chen <lidongchen@tencent.com>

On Mon, Apr 24, 2017 at 8:36 PM, Fam Zheng <famz@redhat.com> wrote:
> On Mon, 04/24 20:26, 858585 jemmy wrote:
>> > 2) qcow2 with cluster_size = 512 is probably too uncommon to be optimized for.
>> if culster_size is very small, should disable metadata check default?
>>
>
> No, I don't think it's worth the inconsistent behavior. People who want
> performance shouldn't use 512 bytes anyway.
ok,thanks.

>
> Fam