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Re: [Qemu-devel] [PATCHv3 1.8 6/9] qemu-img: dynamically adjust iobuffer
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From: |
Eric Blake |
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Subject: |
Re: [Qemu-devel] [PATCHv3 1.8 6/9] qemu-img: dynamically adjust iobuffer size during convert |
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Date: |
Thu, 05 Dec 2013 06:30:46 -0700 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 |
On 11/27/2013 03:07 AM, Peter Lieven wrote:
> since the convert process is basically a sync operation it might
> be benificial in some case to change the hardcoded I/O buffer
s/benificial/beneficial/
> size to a greater value.
>
> This patch increases the I/O buffer size if the output
> driver advertises an optimal transfer length or discard alignment
> that is greater than the default buffer size of 2M.
>
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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