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Re: [Qemu-devel] [PATCH v3 00/10] aio: experimental virtio-blk polling m

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH v3 00/10] aio: experimental virtio-blk polling mode
Date: Tue, 22 Nov 2016 18:13:00 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0

On 22/11/2016 17:31, Stefan Hajnoczi wrote:
> v3:
>  * Avoid ppoll(2)/epoll_wait(2) if polling succeeded [Paolo]
>  * Disable guest->host virtqueue notification during polling [Christian]
>  * Rebased on top of my virtio-blk/scsi virtqueue notification disable patches
> v2:
>  * Uninitialized node->deleted gone [Fam]
>  * Removed 1024 polling loop iteration qemu_clock_get_ns() optimization which
>    created a weird step pattern [Fam]
>  * Unified with AioHandler, dropped AioPollHandler struct [Paolo]
>    (actually I think Paolo had more in mind but this is the first step)
>  * Only poll when all event loop resources support it [Paolo]
>  * Added run_poll_handlers_begin/end trace events for perf analysis
>  * Sorry, Christian, no virtqueue kick suppression yet

Looks great.  Of course the new interfaces should be added, even as a
stub only, to aio-win32.c as well.



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