qemu+aio vs C2

[Paul B. Mahol]

On 2/26/09, Andriy Gapon <avg at icyb.net.ua> wrote:
>
> I see something unusual and surprising for me: if I kldload aio for qemu's
> sake
> and then actually start qemu, I see that share of C2 in cx_usage is
> constantly
> dropping and then finally there is "too many short sleeps, backing off to
> C1".
>
> This is on i386 with stable/7 as of r188116.
>
> I am out of ideas.

And qemu guest is?

Perhaps you should try changing guest kern.hz sysctl setting.
I dont think related comitt got MFC-ed to STABLE.

-- 
Paul