From: Thomas Renninger <trenn@suse.de>
To: Len Brown <lenb@kernel.org>
Cc: linux-pm@lists.linux-foundation.org, x86@kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
sfr@canb.auug.org.au
Subject: Re: [linux-pm] [PATCH 8/8] intel_idle: create a native cpuidle driver for select intel processors
Date: Fri, 28 May 2010 09:46:32 +0200 [thread overview]
Message-ID: <201005280946.32981.trenn@suse.de> (raw)
In-Reply-To: <alpine.LFD.2.00.1005272131400.24823@localhost.localdomain>
On Friday 28 May 2010 03:44:16 Len Brown wrote:
> On Thu, 27 May 2010, Thomas Renninger wrote:
...
> > > This driver does not yet know about cpu online/offline
> > > and thus will not yet play well with cpu-hotplug.
I thought this is also about soft on/offlining.
>
> > What means does not play well yet, suspend or manually offlining a
> > core will eventually (for sure?) hang the machine?
>
> It means less power savings savings than optimal
> for processors not present at module load time.
Ok, not really sever...
>
> > If this is known broken, should this already be spread through
> > linux-next?
>
> If you know somebody with a system that supports CPU hot-add
> on one of the processors supported by intel_idle, and they
> are willing to test linux-next, please have them contact me.
Real CPU hotplug is broken with acpi processor driver as well,
eventually it got addressed lately. Anyway, not sever...
Thanks,
Thomas
next prev parent reply other threads:[~2010-05-28 7:45 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-27 2:42 idle-test patches queued for upstream Len Brown
2010-05-27 2:42 ` [PATCH 1/8] cpuidle: fail to register if !CONFIG_CPU_IDLE Len Brown
2010-05-27 2:42 ` [PATCH 2/8] cpuidle: add cpuidle_unregister_driver() error check Len Brown
2010-05-27 3:14 ` Andrew Morton
2010-05-27 5:11 ` [PATCH-v2 " Len Brown
2010-05-27 5:13 ` Andrew Morton
2010-05-27 2:42 ` [PATCH 3/8] cpuidle: make cpuidle_curr_driver static Len Brown
2010-05-27 5:27 ` [PATCH-v2 " Len Brown
2010-05-27 18:40 ` Luck, Tony
2010-05-27 23:30 ` Len Brown
2010-05-27 2:42 ` [PATCH 4/8] ACPI: allow a native cpuidle driver to displace ACPI Len Brown
2010-05-27 2:42 ` [PATCH 5/8] sched: clarify commment for TS_POLLING Len Brown
2010-05-27 5:53 ` [PATCH-v2 " Len Brown
2010-05-27 2:42 ` [PATCH 6/8] acpi_pad: uses MONITOR/MWAIT, so it doesn't need to clear TS_POLLING Len Brown
2010-05-27 2:42 ` [PATCH 7/8] ACPI: acpi_idle: touch TS_POLLING only in the non-MWAIT case Len Brown
2010-05-27 2:42 ` [PATCH 8/8] intel_idle: create a native cpuidle driver for select intel processors Len Brown
2010-05-27 3:44 ` Andrew Morton
2010-05-28 3:57 ` Len Brown
2010-05-30 9:20 ` Andi Kleen
2010-05-27 8:53 ` [linux-pm] " Thomas Renninger
2010-05-28 1:44 ` Len Brown
2010-05-28 7:46 ` Thomas Renninger [this message]
2010-05-28 17:38 ` Len Brown
2010-05-29 4:17 ` Thomas Renninger
2010-05-27 14:14 ` Kevin Hilman
2010-05-27 14:22 ` Arjan van de Ven
2010-05-27 14:36 ` Kevin Hilman
2010-05-28 0:22 ` Len Brown
2010-05-28 17:28 ` Kevin Hilman
2010-05-27 14:51 ` [linux-pm] " Igor Stoppa
2010-05-28 3:14 ` Arjan van de Ven
2010-05-28 17:27 ` Kevin Hilman
2010-05-29 0:38 ` Arjan van de Ven
2010-05-28 2:32 ` Chase Douglas
2010-05-28 4:16 ` Len Brown
2010-05-28 15:09 ` Chase Douglas
2010-05-28 17:43 ` Len Brown
2010-05-28 19:51 ` Chase Douglas
2010-05-28 20:14 ` Chase Douglas
2010-05-27 5:25 ` (No subject header) Milton Miller
2010-05-27 5:47 ` Len Brown
2010-05-27 8:45 ` [linux-pm] idle-test patches queued for upstream Thomas Renninger
2010-05-28 0:59 ` Len Brown
2010-05-28 8:07 ` Thomas Renninger
2010-05-28 17:42 ` Len Brown
2010-06-16 7:53 ` Pavel Machek
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