Re: [Qemu-devel] Block I/O outside the QEMU global mutex was "Re: [RFC PATCH 00/17] Support for multiple "AIO contexts""

[Avi Kivity]

On 10/09/2012 11:08 AM, Stefan Hajnoczi wrote:
> Here are the steps that have been mentioned:
> 
> 1. aio fastpath - for raw-posix and other aio block drivers, can we reduce I/O
>    request latency by skipping block layer coroutines?  

Is coroutine overhead noticable?

> I'm also curious about virtqueue_pop()/virtqueue_push() outside the QEMU mutex
> although that might be blocked by the current work around MMIO/PIO dispatch
> outside the global mutex.

It is, yes.


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error compiling committee.c: too many arguments to function