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From: Fam Zheng <famz@redhat.com>
To: Peter Lieven <pl@kamp.de>
Cc: qemu-block@nongnu.org, qemu-devel@nongnu.org, kwolf@redhat.com,
	stefanha@redhat.com, mreitz@redhat.com
Subject: Re: [Qemu-devel] [PATCH V2] block/io: optimize bdrv_co_pwritev for small requests
Date: Thu, 26 May 2016 14:50:45 +0800	[thread overview]
Message-ID: <20160526065045.GA10734@ad.usersys.redhat.com> (raw)
In-Reply-To: <1464100220-21317-1-git-send-email-pl@kamp.de>

On Tue, 05/24 16:30, Peter Lieven wrote:
> in a read-modify-write cycle a small request might cause
> head and tail to fall into the same aligned block. Currently
> QEMU reads the same block twice in this case which is
> not necessary.
> 
> Signed-off-by: Peter Lieven <pl@kamp.de>

Thanks, applied to my block branch:

https://github.com/famz/qemu/tree/block

  parent reply	other threads:[~2016-05-26  6:50 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-24 14:30 [Qemu-devel] [PATCH V2] block/io: optimize bdrv_co_pwritev for small requests Peter Lieven
2016-05-24 15:07 ` Kevin Wolf
2016-05-26  6:50 ` Fam Zheng [this message]
2016-05-26  7:10   ` Fam Zheng
2016-05-26  7:55     ` Paolo Bonzini
2016-05-26  8:30       ` Fam Zheng
2016-05-26  9:20         ` Paolo Bonzini
2016-05-27  0:36           ` Fam Zheng
2016-05-27  8:55             ` Kevin Wolf
2016-05-30  6:25               ` Peter Lieven
2016-05-30  8:24                 ` Kevin Wolf
2016-05-30  9:30                   ` Peter Lieven
2016-05-30  9:47                     ` Kevin Wolf
2016-05-30  9:53                       ` Peter Lieven
2016-05-30 10:06                         ` Kevin Wolf
2016-05-30 10:10                           ` Peter Lieven

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