[PATCH] O11.2int for interactivity

[PATCH] O11.2int for interactivity

[Con Kolivas]

This patch backs out a little section which isn't quite right and 
just might in the wrong circumstances cause unfairness. Goes on
top of O11.1

Con

--- linux-2.6.0-test2-mm1/kernel/sched.c	2003-07-30 20:26:08.000000000 +1000
+++ linux-2.6.0-test2mm1O11/kernel/sched.c	2003-07-30 20:26:45.000000000 +1000
@@ -1292,16 +1292,7 @@ void scheduler_tick(int user_ticks, int 
 		if (!TASK_INTERACTIVE(p) || EXPIRED_STARVING(rq)) {
 			if (!rq->expired_timestamp)
 				rq->expired_timestamp = jiffies;
-			/*
-			 * Long term interactive tasks need to completely
-			 * run out of sleep_avg to be expired, and when they
-			 * do they are put at the start of the expired array
-			 */
-			if (unlikely(p->interactive_credit && p->sleep_avg)){
-				enqueue_task(p, rq->active);
-				goto out_unlock;
-			}
-				enqueue_task(p, rq->expired);
+			enqueue_task(p, rq->expired);
 		} else
 			enqueue_task(p, rq->active);
 	} else if (p->mm && !((task_timeslice(p) - p->time_slice) %

Re: [PATCH] O11.2int for interactivity

[Andrew Morton]

Con Kolivas <kernel@kolivas.org> wrote:
>
> This patch backs out a little section which isn't quite right and 
> just might in the wrong circumstances cause unfairness. Goes on
> top of O11.1

'k, thanks.  I'll do -mm2 about eight hours from now.