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Re: [Qemu-devel] [PATCH 1/2] block: minimal bounce buffer alignment
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From: |
Kevin Wolf |
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Subject: |
Re: [Qemu-devel] [PATCH 1/2] block: minimal bounce buffer alignment |
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Date: |
Tue, 12 May 2015 12:29:26 +0200 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
Am 12.05.2015 um 07:47 hat Denis V. Lunev geschrieben:
> The patch introduces new concept: minimal memory alignment for bounce
> buffers. Original so called "optimal" value is actually minimal required
> value for aligment. It should be used for validation that the IOVec
> is properly aligned and bounce buffer is not required.
>
> Though, from the performance point of view, it would be better if
> bounce buffer or IOVec allocated by QEMU will be aligned stricter.
>
> The patch does not change any alignment value yet.
>
> Signed-off-by: Denis V. Lunev <address@hidden>
> CC: Paolo Bonzini <address@hidden>
> CC: Kevin Wolf <address@hidden>
> CC: Stefan Hajnoczi <address@hidden>
Reviewed-by: Kevin Wolf <address@hidden>