Re: [RFC PATCH] check_preempt_tick should not compare vruntime with wall time

Linus Torvalds
2010-09-13T16:38:24Z

On Mon, Sep 13, 2010 at 9:16 AM, Mathieu Desnoyers
<mathieu.desnoyers@efficios.com> wrote:
>
> OK, the long IRC discussions we just had convinced me that the current scheme
> takes things into account by adapting the granularity dynamically, but also got
> me to notice that check_preempt seems to compare vruntime with wall time, which
> is utterly incorrect. So maybe all my patch was doing was to expose this bug:

Do you have latency numbers for this patch?

Linus