Laurent Vivier wrote:
> Anthony Liguori wrote:
>   
> Hi Anthony,
>
> I didn't modify aio_init limit...
>   

It would be pretty useful to give it a try.  In qemu_aio_init() where 
aio_init() get's called.  If you just bump aio_threads and aio_num from 
1 to, say, 32. You should see a big difference in SCSI performance.

Regards,

Anthony Liguori

> I made some benchmarks with liposix-aio, but results are worst with IDE and
> crashes with SCSI (because I need to make some additional works).
>
> It's the part on which I work now (to align buffers to avoid redundant buffer
> copy and open image disk with O_DIRECT).
>
> Regards,
> Laurent
>
>   


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