lkml.org 
[lkml]   [2010]   [Nov]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[tip:sched/core] sched: Update shares on idle_balance
Commit-ID:  c66eaf619c0c7937e9ded160ae83b5a7a6b19b56
Gitweb: http://git.kernel.org/tip/c66eaf619c0c7937e9ded160ae83b5a7a6b19b56
Author: Paul Turner <pjt@google.com>
AuthorDate: Mon, 15 Nov 2010 15:47:07 -0800
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Thu, 18 Nov 2010 13:27:49 +0100

sched: Update shares on idle_balance

Since shares updates are no longer expensive and effectively local, update them
at idle_balance(). This allows us to more quickly redistribute shares to
another cpu when our load becomes idle.

Signed-off-by: Paul Turner <pjt@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20101115234938.204191702@google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
kernel/sched_fair.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 6c84439..33f941d 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -3343,6 +3343,7 @@ static void idle_balance(int this_cpu, struct rq *this_rq)
*/
raw_spin_unlock(&this_rq->lock);

+ update_shares(this_cpu);
for_each_domain(this_cpu, sd) {
unsigned long interval;
int balance = 1;

\
 
 \ /
  Last update: 2010-11-18 15:15    [W:0.102 / U:0.360 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site