From: peterz@infradead.org (Peter Zijlstra)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH v3 5/6] sched: pack the idle load balance
Date: Fri, 26 Apr 2013 12:54:31 +0200 [thread overview]
Message-ID: <20130426105431.GF8669@dyad.programming.kicks-ass.net> (raw)
In-Reply-To: <5176A932.5050506@linux.intel.com>
On Tue, Apr 23, 2013 at 08:30:58AM -0700, Arjan van de Ven wrote:
> For x86 we should not be setting such flag then; we don't have a way for some cpu packages to
> go to an extra deep power state if they're completely idle.
> (this afaik is true for both Intel and AMD)
You say 'some'; this implies we do for others, right?
We can dynamically set the required flags in the arch setup when it makes sense.
WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: Arjan van de Ven <arjan@linux.intel.com>
Cc: Alex Shi <alex.shi@intel.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Preeti U Murthy <preeti@linux.vnet.ibm.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
LAK <linux-arm-kernel@lists.infradead.org>,
"linaro-kernel@lists.linaro.org" <linaro-kernel@lists.linaro.org>,
Ingo Molnar <mingo@kernel.org>,
Russell King - ARM Linux <linux@arm.linux.org.uk>,
Paul Turner <pjt@google.com>, Santosh <santosh.shilimkar@ti.com>,
Morten Rasmussen <morten.rasmussen@arm.com>,
Chander Kashyap <chander.kashyap@linaro.org>,
"cmetcalf@tilera.com" <cmetcalf@tilera.com>,
"tony.luck@intel.com" <tony.luck@intel.com>,
Paul McKenney <paulmck@linux.vnet.ibm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Len Brown <len.brown@intel.com>,
Amit Kucheria <amit.kucheria@linaro.org>,
Jonathan Corbet <corbet@lwn.net>
Subject: Re: [RFC PATCH v3 5/6] sched: pack the idle load balance
Date: Fri, 26 Apr 2013 12:54:31 +0200 [thread overview]
Message-ID: <20130426105431.GF8669@dyad.programming.kicks-ass.net> (raw)
In-Reply-To: <5176A932.5050506@linux.intel.com>
On Tue, Apr 23, 2013 at 08:30:58AM -0700, Arjan van de Ven wrote:
> For x86 we should not be setting such flag then; we don't have a way for some cpu packages to
> go to an extra deep power state if they're completely idle.
> (this afaik is true for both Intel and AMD)
You say 'some'; this implies we do for others, right?
We can dynamically set the required flags in the arch setup when it makes sense.
next prev parent reply other threads:[~2013-04-26 10:54 UTC|newest]
Thread overview: 103+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-22 12:25 [RFC PATCH v3 0/6] sched: packing small tasks Vincent Guittot
2013-03-22 12:25 ` Vincent Guittot
2013-03-22 12:25 ` [RFC PATCH v3 1/6] Revert "sched: Introduce temporary FAIR_GROUP_SCHED dependency for load-tracking" Vincent Guittot
2013-03-22 12:25 ` Vincent Guittot
2013-03-22 12:25 ` [RFC PATCH v3 2/6] sched: add a new SD_SHARE_POWERDOMAIN flag for sched_domain Vincent Guittot
2013-03-22 12:25 ` Vincent Guittot
2013-03-22 12:25 ` [RFC PATCH v3 3/6] sched: pack small tasks Vincent Guittot
2013-03-22 12:25 ` Vincent Guittot
2013-03-26 12:26 ` Peter Zijlstra
2013-03-26 12:26 ` Peter Zijlstra
2013-03-27 10:21 ` Preeti U Murthy
2013-03-27 10:21 ` Preeti U Murthy
2013-03-27 11:00 ` Vincent Guittot
2013-03-27 11:00 ` Vincent Guittot
2013-04-26 10:30 ` Peter Zijlstra
2013-04-26 10:30 ` Peter Zijlstra
2013-04-26 11:34 ` Vincent Guittot
2013-04-26 11:34 ` Vincent Guittot
2013-04-26 10:18 ` Peter Zijlstra
2013-04-26 10:18 ` Peter Zijlstra
2013-04-26 10:32 ` Preeti U Murthy
2013-04-26 10:32 ` Preeti U Murthy
2013-03-26 12:37 ` Peter Zijlstra
2013-03-26 12:37 ` Peter Zijlstra
2013-03-26 13:00 ` Vincent Guittot
2013-03-26 13:00 ` Vincent Guittot
2013-03-27 4:33 ` Preeti U Murthy
2013-03-27 4:33 ` Preeti U Murthy
2013-03-27 4:48 ` Alex Shi
2013-03-27 4:48 ` Alex Shi
2013-03-27 8:51 ` Peter Zijlstra
2013-03-27 8:51 ` Peter Zijlstra
2013-03-26 12:46 ` Peter Zijlstra
2013-03-26 12:46 ` Peter Zijlstra
2013-03-26 13:53 ` Vincent Guittot
2013-03-26 13:53 ` Vincent Guittot
2013-03-26 15:29 ` Arjan van de Ven
2013-03-26 15:29 ` Arjan van de Ven
2013-03-27 8:46 ` Peter Zijlstra
2013-03-27 8:46 ` Peter Zijlstra
2013-03-27 8:54 ` Vincent Guittot
2013-03-27 8:54 ` Vincent Guittot
2013-03-27 9:00 ` Peter Zijlstra
2013-03-27 9:00 ` Peter Zijlstra
2013-03-27 11:18 ` Catalin Marinas
2013-03-27 14:13 ` Peter Zijlstra
2013-03-27 16:36 ` Catalin Marinas
2013-03-27 17:18 ` Nicolas Pitre
2013-03-27 17:18 ` Nicolas Pitre
2013-03-27 17:37 ` Catalin Marinas
2013-03-27 17:37 ` Catalin Marinas
2013-03-27 17:20 ` Vincent Guittot
2013-03-27 18:01 ` Catalin Marinas
2013-03-27 15:37 ` Nicolas Pitre
2013-03-27 15:37 ` Nicolas Pitre
2013-03-22 12:25 ` [RFC PATCH v3 4/6] sched: secure access to other CPU statistics Vincent Guittot
2013-03-22 12:25 ` Vincent Guittot
2013-03-26 12:50 ` Peter Zijlstra
2013-03-26 12:50 ` Peter Zijlstra
2013-03-26 13:06 ` Vincent Guittot
2013-03-26 13:06 ` Vincent Guittot
2013-03-22 12:25 ` [RFC PATCH v3 5/6] sched: pack the idle load balance Vincent Guittot
2013-03-22 12:25 ` Vincent Guittot
2013-03-26 12:52 ` Peter Zijlstra
2013-03-26 12:52 ` Peter Zijlstra
2013-03-26 14:03 ` Vincent Guittot
2013-03-26 14:03 ` Vincent Guittot
2013-03-26 14:42 ` Peter Zijlstra
2013-03-26 14:42 ` Peter Zijlstra
2013-03-26 15:55 ` Vincent Guittot
2013-03-26 15:55 ` Vincent Guittot
2013-03-27 4:56 ` Alex Shi
2013-03-27 4:56 ` Alex Shi
2013-03-27 8:05 ` Vincent Guittot
2013-03-27 8:05 ` Vincent Guittot
2013-03-27 8:47 ` Alex Shi
2013-03-27 8:47 ` Alex Shi
2013-03-27 10:30 ` Vincent Guittot
2013-03-27 10:30 ` Vincent Guittot
2013-03-27 13:32 ` Alex Shi
2013-03-27 13:32 ` Alex Shi
2013-03-27 8:49 ` Peter Zijlstra
2013-03-27 8:49 ` Peter Zijlstra
2013-04-05 11:08 ` Vincent Guittot
2013-04-05 11:08 ` Vincent Guittot
2013-04-22 5:45 ` Preeti U Murthy
2013-04-22 5:45 ` Preeti U Murthy
[not found] ` <CAKfTPtCCCifC=c+xjjnAH_HSqkR80PiQoddQKXPHuZwZawbvcA@mail.gmail.com>
2013-04-23 2:23 ` Alex Shi
2013-04-23 2:23 ` Alex Shi
2013-04-23 4:57 ` Preeti U Murthy
2013-04-23 4:57 ` Preeti U Murthy
2013-04-23 15:30 ` Arjan van de Ven
2013-04-23 15:30 ` Arjan van de Ven
2013-04-26 10:54 ` Peter Zijlstra [this message]
2013-04-26 10:54 ` Peter Zijlstra
2013-04-23 4:36 ` Preeti U Murthy
2013-04-23 4:36 ` Preeti U Murthy
2013-03-22 12:25 ` [RFC PATCH v3 6/6] ARM: sched: clear SD_SHARE_POWERDOMAIN Vincent Guittot
2013-03-22 12:25 ` Vincent Guittot
2013-03-23 11:55 ` [RFC PATCH v3 0/6] sched: packing small tasks Preeti U Murthy
2013-03-23 11:55 ` Preeti U Murthy
2013-03-25 9:58 ` Vincent Guittot
2013-03-25 9:58 ` Vincent Guittot
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