[PATCH] improve scheduler fairness a bit

Do not transfer remaining time slice to another cpu on process exit. Signed-off-by: Oleg Nesterov <[email protected]> Acked-by: Ingo Molnar <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
iegor · Nov 4, 2005 · 889dfaf · 889dfaf
1 parent c8ebce6
commit 889dfaf
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/kernel/sched.c b/kernel/sched.c
@@ -1468,7 +1468,7 @@ void fastcall sched_exit(task_t *p)
 	 * the sleep_avg of the parent as well.
 	 */
 	rq = task_rq_lock(p->parent, &flags);
-	if (p->first_time_slice) {
+	if (p->first_time_slice && task_cpu(p) == task_cpu(p->parent)) {
 		p->parent->time_slice += p->time_slice;
 		if (unlikely(p->parent->time_slice > task_timeslice(p)))
 			p->parent->time_slice = task_timeslice(p);