[Devel] [PATCH 2/2] kvm: Allow scheduler throttling in __vcpu_run()

[Vladimir Davydov]

On Mon, Jan 11, 2016 at 08:15:57PM +0300, Kirill Tkhai wrote:
> Since __vcpu_run() does not hold any mutexes, it's
> save to throttle there.
> 
> Otherwise, the character of this place makes it behave
> as in-kernel busy loop: while () { cond_resched(); }
> and sys cpu usage takes up to 100% cpu.
> 
> https://jira.sw.ru/browse/PSBM-42358
> 
> Signed-off-by: Kirill Tkhai <ktkhai at virtuozzo.com>

Reviewed-by: Vladimir Davydov <vdavydov at virtuozzo.com>