From: Peter Zijlstra <peterz@infradead.org>
To: Vincent Guittot <vincent.guittot@linaro.org>
Cc: paulmck@linux.vnet.ibm.com, smuckle@quicinc.com, khilman@ti.com,
Robin.Randhawa@arm.com, suresh.b.siddha@intel.com,
thebigcorporation@gmail.com, venki@google.com,
panto@antoniou-consulting.com, mingo@elte.hu,
paul.brett@intel.com, pdeschrijver@nvidia.com, pjt@google.com,
efault@gmx.de, fweisbec@gmail.com, geoff@infradead.org,
rostedt@goodmis.org, tglx@linutronix.de,
amit.kucheria@linaro.org,
linux-kernel <linux-kernel@vger.kernel.org>,
linaro-sched-sig@lists.linaro.org,
Morten Rasmussen <Morten.Rasmussen@arm.com>,
Juri Lelli <juri.lelli@gmail.com>
Subject: Re: Plumbers: Tweaking scheduler policy micro-conf RFP
Date: Wed, 16 May 2012 20:30:10 +0200 [thread overview]
Message-ID: <1337193010.27694.146.camel@twins> (raw)
In-Reply-To: <1337096141.27694.82.camel@twins>
On Tue, 2012-05-15 at 17:35 +0200, Peter Zijlstra wrote:
> But really short, look at kernel/sched/core.c:default_topology[]
The reason I want to push this into the arch is that the current one
size fits all topology really doesn't fit.
On x86 there's stuff like the Intel Core2 Quad which is two dual-core
dies glued together resulting in a socket with 2 cache domains. And the
current topology simply cannot represent this.
There's the s390 'book' domain, which is now littering generic code.
And AMD Magny-Cours which has two nodes on a socket.
But I want to very much limit the arch interface so that we don't get
the current mess of arch maintainers having to guess at things like
SD_INIT_BOOK and what all these various random numbers in there mean.
next prev parent reply other threads:[~2012-05-16 18:30 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-11 16:16 Plumbers: Tweaking scheduler policy micro-conf RFP Vincent Guittot
2012-05-11 16:26 ` Steven Rostedt
2012-05-11 16:38 ` Vincent Guittot
2012-05-15 8:41 ` Juri Lelli
2012-05-15 0:53 ` Paul E. McKenney
2012-05-15 8:02 ` Vincent Guittot
2012-05-15 8:34 ` mou Chen
2012-05-15 9:07 ` Vincent Guittot
2012-05-15 9:17 ` Pantelis Antoniou
2012-05-15 10:28 ` Peter Zijlstra
2012-05-15 11:35 ` Pantelis Antoniou
2012-05-15 11:58 ` Peter Zijlstra
2012-05-15 12:32 ` Pantelis Antoniou
2012-05-15 12:59 ` Peter Zijlstra
2012-05-19 14:58 ` Luming Yu
2012-05-15 20:26 ` valdis.kletnieks
2012-05-15 20:33 ` Peter Zijlstra
2012-05-16 12:08 ` Pantelis Antoniou
2012-05-15 12:23 ` Peter Zijlstra
2012-05-15 12:27 ` Peter Zijlstra
2012-05-15 12:57 ` Vincent Guittot
2012-05-15 13:00 ` Peter Zijlstra
2012-05-15 15:05 ` Vincent Guittot
2012-05-15 15:19 ` Paul E. McKenney
2012-05-15 15:27 ` Vincent Guittot
2012-05-15 15:35 ` Peter Zijlstra
2012-05-15 15:45 ` Peter Zijlstra
2012-05-16 18:30 ` Peter Zijlstra [this message]
2012-05-19 17:08 ` Linus Torvalds
2012-05-19 22:55 ` Peter Zijlstra
2012-05-22 2:38 ` Chen
2012-05-22 5:14 ` Chen
2012-05-30 7:20 ` Ingo Molnar
2012-05-23 15:03 ` Ingo Molnar
2012-05-23 15:43 ` Joe Perches
2012-05-23 15:50 ` Ingo Molnar
2012-05-23 15:56 ` Joe Perches
2012-05-23 15:59 ` Ingo Molnar
2012-05-29 18:17 ` [PATCH] printk: Shrink printk_sched buffer size, eliminate it when !CONFIG_PRINTK Joe Perches
2012-06-05 16:04 ` Joe Perches
2012-06-06 7:25 ` Ingo Molnar
2012-06-06 7:33 ` Ingo Molnar
2012-06-06 7:42 ` Joe Perches
2012-05-19 23:13 ` Plumbers: Tweaking scheduler policy micro-conf RFP Peter Zijlstra
2012-05-19 23:22 ` Peter Zijlstra
2012-05-21 7:16 ` Ingo Molnar
2012-05-21 16:56 ` Linus Torvalds
2012-05-16 18:49 ` Vaidyanathan Srinivasan
2012-05-16 19:40 ` Peter Zijlstra
2012-05-16 21:20 ` Vincent Guittot
[not found] ` <20120518161817.GE18312@e103034-lin.cambridge.arm.com>
2012-05-18 16:24 ` Morten Rasmussen
2012-05-18 16:39 ` Peter Zijlstra
2012-05-18 16:46 ` Pantelis Antoniou
2012-05-15 16:30 ` Vaidyanathan Srinivasan
2012-05-15 18:13 ` Vincent Guittot
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