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Re: [Qemu-devel] [Qemu-block] [PATCH] vpc: unlock Coroutine lock to make
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From: |
Kevin Wolf |
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Subject: |
Re: [Qemu-devel] [Qemu-block] [PATCH] vpc: unlock Coroutine lock to make IO submit Concurrently |
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Date: |
Fri, 15 Mar 2019 16:14:50 +0100 |
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User-agent: |
Mutt/1.11.3 (2019-02-01) |
Am 15.03.2019 um 15:04 hat Zhengui li geschrieben:
> Concurrent IO becomes serial IO because of the qemu Coroutine lock,
> which reduce IO performance severely.
>
> So unlock Coroutine lock before bdrv_co_pwritev and
> bdrv_co_preadv to fix it.
>
> Signed-off-by: Zhengui li <address@hidden>
Thanks, applied to the block-next branch for 4.1.
Kevin