Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755832Ab2HTID3 (ORCPT ); Mon, 20 Aug 2012 04:03:29 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:64157 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755739Ab2HTIDZ (ORCPT ); Mon, 20 Aug 2012 04:03:25 -0400 From: Charles Wang To: peterz@infradead.org, linux-kernel@vger.kernel.org, mingo@redhat.com, dsmythies@telus.net Cc: Charles Wang , Charles Wang Subject: [PATCH] sched: add missing call for calc_load_exit_idle Date: Mon, 20 Aug 2012 16:02:33 +0800 Message-Id: <1345449754-27130-1-git-send-email-muming.wq@gmail.com> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1188 Lines: 34 >From Charles Wang Azat Khuzhin reported "high loadavg in linux-3.6" After checking for upstream's code, I found Peter's patch (Commit id:5167e8d5417bf5c322a703d2927daec727ea40dd) not be fully applied, missing the call for calc_load_exit_idle. After that idle exit in sampling window will always be calculated to non-idle, and the load will be higher than normal. This patch add the missing call for calc_load_exit_idle. Signed-off-by: Charles Wang diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 024540f..3a9e5d5 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -573,6 +573,7 @@ static void tick_nohz_restart_sched_tick(struct tick_sched *ts, ktime_t now) tick_do_update_jiffies64(now); update_cpu_load_nohz(); + calc_load_exit_idle(); touch_softlockup_watchdog(); /* * Cancel the scheduled timer and restore the tick -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/