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Re: [Qemu-devel] [PATCH 07/26] block: add the support to drain throttled


From: Zhi Yong Wu
Subject: Re: [Qemu-devel] [PATCH 07/26] block: add the support to drain throttled requests
Date: Fri, 13 Apr 2012 17:55:29 +0800

On Fri, Apr 13, 2012 at 5:49 PM, Paolo Bonzini <address@hidden> wrote:
> Il 13/04/2012 09:51, Zhi Yong Wu ha scritto:
>> Sorry, i hadn't check the code. thanks for pointing out this. In the
>> past, i tested this patch, and found it will assert about
>> bs->tracked_requests. Do you think that only qemu_aio_wait can make
>> sure that bs->tracked_requests is empty here?
>
> FWIW, live snapshot during guest boot (block_set_io_throttle ide0-hd0 0
> 500000 500000 0 500000 500000) died immediately without the patches.
> With the patch I could do 20 snapshots before I stopped.
or replace qemu_aio_wait with qemu_aio_flush
>
> Paolo



-- 
Regards,

Zhi Yong Wu



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