On 08/08/2011 04:21 PM, Frediano Ziglio wrote:
>
> The entire qemu process may be affined to a subset of the host cpus; we
> don't want to break that.
>
> For example:
>
> taskset 0xf0 qemu ....
> (qemu) info cpus
> <pin individual vcpu threads to host cpus>
>
>
Just call sched_getaffinity at program start, save to a global
variable and then set this affinity for io threads.
This affinity may change later on.
I didn't use affinity that much but from manual it seems that if you
own process you can set affinity as you like.
IMHO this patch introduce a delay in io thread creation due to posting
thread creation to another thread just to set different affinity.
It does. But aio threads have a long life, so this happens very rarely.
--
error compiling committee.c: too many arguments to function
