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From: Kevin Wolf <kwolf@redhat.com>
To: Laurent Vivier <laurent@vivier.eu>
Cc: qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [PATCH][v2] Improve qemu-nbd performance by 4400 %
Date: Fri, 17 Sep 2010 18:39:32 +0200	[thread overview]
Message-ID: <4C9399C4.7070504@redhat.com> (raw)
In-Reply-To: <1284740037-6374-1-git-send-email-laurent@vivier.eu>

Am 17.09.2010 18:13, schrieb Laurent Vivier:
> This patch allows to reduce the boot time from an NBD server from 225 seconds to
> 5 seconds (time between the "boot cd:0" and the kernel init) for the
> following command lines:
> 
> ./qemu-nbd -t ../ISO/debian-500-powerpc-netinst.iso
> and
> ./ppc-softmmu/qemu-system-ppc -cdrom nbd:localhost:1024
> 
> This patch combines the reply header and payload send operation.
> 
> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
> ---
> v2: use NBD_REPLY_SIZE instead of  sizeof(struct nbd_reply)

Thanks, applied to the block branch.

Kevin

      reply	other threads:[~2010-09-17 16:39 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-16 18:54 [Qemu-devel] [PATCH] Improve qemu-nbd performance by 4400 % Laurent Vivier
2010-09-17  8:33 ` Stefan Hajnoczi
2010-09-17 10:24 ` Kevin Wolf
2010-09-17 16:13 ` [Qemu-devel] [PATCH][v2] " Laurent Vivier
2010-09-17 16:39   ` Kevin Wolf [this message]

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