Re: [PATCH v2] sched: add a tuning knob to allow changing RR tmeslice

[Ingo Molnar <mingo@kernel.org>]

* Clark Williams <williams@redhat.com> wrote:

> This version stores the user-input value in a separate 
> location from the jiffies values used by the scheduler, to 
> prevent a race condition.
> 
> Subject: [PATCH v2] sched: add a tuning knob to allow changing 
> RR timeslice

looks useful.

> @@ -2010,7 +2010,7 @@ static void task_tick_rt(struct rq *rq, struct
> task_struct *p, int queued) if (--p->rt.time_slice)
>  		return;
>  
> -	p->rt.time_slice = RR_TIMESLICE;
> +	p->rt.time_slice = sched_rr_timeslice;
>  
>  	/*
>  	 * Requeue to the end of queue if we (and all of our
> ancestors) are the @@ -2041,7 +2041,7 @@ static unsigned int
> get_rr_interval_rt(struct rq *rq, struct task_struct *task)
>  	 * Time slice is 0 for SCHED_FIFO tasks

Patch wont apply due to patch corruption, alas.

Thanks,

	Ingo