From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Michael Karcher <Michael.Karcher@fu-berlin.de>
Cc: Dirk Brandewie <dirk.brandewie@gmail.com>,
linux-pm@vger.kernel.org, Len Brown <len.brown@intel.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: power management regression in linux 3.10? (related to CONFIG_NO_HZ_FULL)
Date: Tue, 04 Jun 2013 13:30:54 +0200 [thread overview]
Message-ID: <1906476.HVJCZCXmXX@vostro.rjw.lan> (raw)
In-Reply-To: <1370308128.6305.3.camel@localhost>
On Tuesday, June 04, 2013 03:08:48 AM Michael Karcher wrote:
> Am Montag, den 03.06.2013, 12:37 -0700 schrieb Dirk Brandewie:
> > On 06/03/2013 12:34 PM, Rafael J. Wysocki wrote:
> > > On Monday, June 03, 2013 07:56:15 PM Michael Karcher wrote:
> > >> Hello,
> > > Yes, please try with CONFIG_NO_HZ_IDLE and see if you can reproduce the
> > > problem.
> Instead of doing that, I successfully applied Dirk's suggestion. Is
> CONFIG_NO_HZ + CONFIG_NO_HZ_IDLE worth testing?
Yes, it is.
> > > Does your system use intel_idle? You've set that in .config, but can you check
> > > what dmesg says, please?
> No, intel_idle complains it doesn't support my CPU family.
I thought so. It is using the ACPI idle driver, then, so I think cpuidle in
general is affected.
That seems to be a time accounting problem of some sort (adding CCs to Ingo and
Thomas).
Thanks,
Rafael
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
parent reply other threads:[~2013-06-04 11:21 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <1370308128.6305.3.camel@localhost>]
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