[libvirt] [PATCH v2] qemu: domain I/O asynchronous handling

Michal Privoznik mprivozn at redhat.com
Wed Jun 22 07:28:22 UTC 2011

On 21.06.2011 23:19, Eric Blake wrote:
> On 06/20/2011 04:33 AM, Michal Privoznik wrote:
>> For virtio disks and interfaces, qemu allows users to enable or disable
>> ioeventfd feature. This means, qemu can execute domain code, while
>> another thread waits for I/O event. Basically, in some cases it is win,
>> in some loss. This feature is available via 'ioeventfd' attribute in disk
>> and interface <driver> element. It accepts 'on' and 'off'. Leaving this
>> attribute out defaults to hypervisor decision.
>> ---
>> diff to v1:
>> -reverted to 'ioeventfd' attribute:
>>   https://www.redhat.com/archives/libvir-list/2011-June/msg00712.html
> ACK.

Thanks, pushed.


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