Re: [Qemu-devel] [PATCH v4 00/13] aio: experimental virtio-blk polling mode

[Karl Rister]

On 12/05/2016 08:56 AM, Stefan Hajnoczi wrote:
<snip>

> Karl: do you have time to run a bigger suite of benchmarks to identify a
> reasonable default poll-max-ns value?  Both aio=native and aio=threads
> are important.
> 
> If there is a sweet spot that improves performance without pathological
> cases then we could even enable polling by default in QEMU.
> 
> Otherwise we'd just document the recommended best polling duration as a
> starting point for users.
> 

I have collected a baseline on the latest patches and am currently
collecting poll-max-ns=16384.  I can certainly throw in a few more
scenarios.  Do we want to stick with powers of 2 or some other strategy?

-- 
Karl Rister <address@hidden>