[PATCH][ 1/5] sched: dont renice kernel threads

Con Kolivas
2007-03-27T02:09:05Z

The practice of renicing kernel threads to negative nice values is of
questionable benefit at best, and at worst leads to larger latencies when
kernel threads are busy on behalf of other tasks.

Signed-off-by: Con Kolivas <kernel@kolivas.org>
---

kernel/workqueue.c | 2 --
1 file changed, 2 deletions(-)

Index: linux-2.6.21-rc5-sd/kernel/workqueue.c
===================================================================
--- linux-2.6.21-rc5-sd.orig/kernel/workqueue.c 2007-03-26 11:03:31.000000000 +1000
+++ linux-2.6.21-rc5-sd/kernel/workqueue.c 2007-03-27 11:52:54.000000000 +1000
@@ -355,8 +355,6 @@ static int worker_thread(void *__cwq)
if (!cwq->freezeable)
current->flags |= PF_NOFREEZE;

- set_user_nice(current, -5);
-
/* Block and flush all signals */
sigfillset(&blocked);
sigprocmask(SIG_BLOCK, &blocked, NULL);

--
-ck