From: Damien Wyart <damien.wyart@free.fr>
To: Peter Zijlstra <peterz@infradead.org>
Cc: tmhikaru@gmail.com, Venkatesh Pallipadi <venki@google.com>,
Chase Douglas <chase.douglas@canonical.com>,
Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org
Subject: Re: High CPU load when machine is idle (related to PROBLEM: Unusually high load average when idle in 2.6.35, 2.6.35.1 and later)
Date: Thu, 25 Nov 2010 14:31:06 +0100 [thread overview]
Message-ID: <20101125133106.GA12914@brouette> (raw)
In-Reply-To: <20101114051406.GA2050@roll>
Hi Peter,
Do you have a plan about solving this problem in the coming weeks or
will it still be present in 2.6.37 final? I am not implying any critic
in any way, just want to know a status because compared to other bugs
discussed in lkml, this one has seen very little technical proposals
towards a resolution (except your attempts). People who signed off the
discussed commit did not make any technical analysis about the bug
reported and this gives a strange feeling. Earth will not stop rotating
if it is not solved, but I still this it is quite important and affects
many users.
> [74f5187ac873042f502227701ed1727e7c5fbfa9] sched: Cure load average vs> NO_HZ woes
> We've gone through two kernel releases with this commit, and I think
> I'm understandably curious why it's not been reverted if it's causing
> problems with no solution in sight.
Even with this commit reverted, the load is incorrect in NO_HZ mode, so
revert only is not enough.
--
Damien Wyart
next prev parent reply other threads:[~2010-11-25 13:40 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-29 7:01 High CPU load when machine is idle Damien Wyart
2010-10-14 14:58 ` High CPU load when machine is idle (related to PROBLEM: Unusually high load average when idle in 2.6.35, 2.6.35.1 and later) Damien Wyart
2010-10-14 15:29 ` Chase Douglas
2010-10-14 15:56 ` Damien Wyart
2010-10-15 11:08 ` Peter Zijlstra
2010-10-18 12:32 ` Peter Zijlstra
2010-10-20 13:27 ` Damien Wyart
2010-10-20 13:30 ` Peter Zijlstra
2010-10-20 13:43 ` Peter Zijlstra
2010-10-20 14:14 ` Peter Zijlstra
2010-10-20 14:25 ` Peter Zijlstra
2010-10-20 17:26 ` Peter Zijlstra
2010-10-20 20:24 ` Damien Wyart
2010-10-21 1:48 ` tmhikaru
2010-10-21 1:53 ` tmhikaru
2010-10-21 8:22 ` Ingo Molnar
2010-10-21 8:57 ` tmhikaru
2010-10-21 18:36 ` tmhikaru
2010-10-22 1:37 ` tmhikaru
2010-10-21 12:09 ` Peter Zijlstra
2010-10-21 17:18 ` Venkatesh Pallipadi
2010-10-22 21:03 ` Venkatesh Pallipadi
2010-10-22 23:03 ` High CPU load when machine is idle (related to PROBLEM: Unusually high load average when idle in 2.6.35, 2.6.35.1 and later) Venkatesh Pallipadi
2010-10-23 2:13 ` tmhikaru
2010-10-25 10:12 ` Peter Zijlstra
2010-10-25 16:29 ` Venkatesh Pallipadi
2010-10-26 12:44 ` Peter Zijlstra
2010-10-26 14:05 ` Peter Zijlstra
2010-10-29 19:42 ` Peter Zijlstra
2010-11-09 18:55 ` Kyle McMartin
2010-11-09 19:02 ` Peter Zijlstra
2010-11-10 2:37 ` tmhikaru
2010-11-10 12:01 ` Peter Zijlstra
2010-11-10 3:45 ` Kyle McMartin
2010-11-10 12:00 ` Peter Zijlstra
2010-11-14 5:14 ` tmhikaru
2010-11-25 13:31 ` Damien Wyart [this message]
2010-11-25 14:03 ` Peter Zijlstra
2010-11-27 20:15 ` Peter Zijlstra
2010-11-28 4:26 ` Kyle McMartin
2010-11-28 11:40 ` Damien Wyart
2010-11-28 18:07 ` Valdis.Kletnieks
2010-11-29 11:38 ` Peter Zijlstra
2010-11-29 19:40 ` tmhikaru
2010-11-29 23:01 ` Peter Zijlstra
2010-11-30 14:59 ` Peter Zijlstra
2010-11-30 15:39 ` Kyle McMartin
2010-11-30 20:04 ` Kyle McMartin
2010-11-30 16:53 ` Damien Wyart
2010-11-30 17:29 ` Peter Zijlstra
2010-12-01 21:27 ` tmhikaru
2010-12-02 10:16 ` tmhikaru
2010-12-08 20:40 ` [tip:sched/urgent] sched: Cure more NO_HZ load average woes tip-bot for Peter Zijlstra
2010-11-30 20:01 ` High CPU load when machine is idle (related to PROBLEM: Unusually high load average when idle in 2.6.35, 2.6.35.1 and later) tmhikaru
2010-11-30 16:49 ` Damien Wyart
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