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From: Anthony Liguori <anthony@codemonkey.ws>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 0/4] qcow2: Improve cluster refcount update
Date: Fri, 07 Nov 2008 07:59:32 -0600	[thread overview]
Message-ID: <491449C4.4070500@codemonkey.ws> (raw)
In-Reply-To: <1226047453.4046.4.camel@frecb07144>

Laurent Vivier wrote:
> BTW, patch #1 is a clean-up (no change, only code move) and patch #2
> doesn't align buffer, but try to minimise syscall (it improves
> performance with O_DSYNC too).
>
> Ignore patch #3 and #4 if you dislike them.
>   

But how useful is #1 and #2 if the buffers aren't aligned and we're 
hitting the slow path?

Regards,

Anthony Liguori

> Regards,
> Laurent
>   

  reply	other threads:[~2008-11-07 13:59 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-06 16:55 [Qemu-devel] [PATCH 0/4] qcow2: Improve cluster refcount update Laurent Vivier
2008-11-06 18:53 ` Anthony Liguori
2008-11-07  8:31   ` Kevin Wolf
2008-11-07  8:44   ` Laurent Vivier
2008-11-07 13:59     ` Anthony Liguori [this message]
2008-11-07 15:01       ` Laurent Vivier
2008-11-07 15:37         ` Anthony Liguori
2008-11-07 15:48           ` Laurent Vivier
2008-11-09 14:35           ` Avi Kivity
2008-11-09 16:32             ` Anthony Liguori
2008-11-10 20:15           ` Andreas Färber
2008-11-10 20:52             ` Anthony Liguori

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