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Re: [Qemu-devel] [PATCH][v2] Improve qemu-nbd performance by 4400 %
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From: |
Kevin Wolf |
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Subject: |
Re: [Qemu-devel] [PATCH][v2] Improve qemu-nbd performance by 4400 % |
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Date: |
Fri, 17 Sep 2010 18:39:32 +0200 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.12) Gecko/20100907 Fedora/3.0.7-1.fc12 Thunderbird/3.0.7 |
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 <address@hidden>
> ---
> v2: use NBD_REPLY_SIZE instead of sizeof(struct nbd_reply)
Thanks, applied to the block branch.
Kevin