From 339aa62469f65daf38a01d6c098b5f3ff8016653 Mon Sep 17 00:00:00 2001
From: Izik Eidus <ieidus@redhat.com>
Date: Mon, 21 Sep 2009 17:02:07 -0700
Subject: [PATCH] ksm: change ksm nice level to be 5
ksm should try not to disturb other tasks as much as possible.
Signed-off-by: Izik Eidus <ieidus@redhat.com>
Cc: Chris Wright <chrisw@redhat.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Avi Kivity <avi@redhat.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
mm/ksm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/ksm.c b/mm/ksm.c
index 0113f15ff43b0..cf072c54df329 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1263,7 +1263,7 @@ static void ksm_do_scan(unsigned int scan_npages)
static int ksm_scan_thread(void *nothing)
{
- set_user_nice(current, 0);
+ set_user_nice(current, 5);
while (!kthread_should_stop()) {
if (ksm_run & KSM_RUN_MERGE) {
--
2.30.2