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From: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
To: Samuel Thibault <samuel.thibault@ens-lyon.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [Patch] sched: new sched domain for representing multi-core
Date: Fri, 10 Feb 2006 16:51:27 -0800	[thread overview]
Message-ID: <20060210165127.A28881@unix-os.sc.intel.com> (raw)
In-Reply-To: <20060209095929.GZ4215@implementation.labri.fr>; from samuel.thibault@ens-lyon.org on Thu, Feb 09, 2006 at 10:59:29AM +0100

On Thu, Feb 09, 2006 at 10:59:29AM +0100, Samuel Thibault wrote:
> Hi,
> 
> Could cache-sharing multi-core chips be represented somehow in
> /proc/cpuinfo too? Such information can be useful in userspace too
> (without having to run cpuid & such). For instance:
> 
> physical id	: 0
> siblings	: 2
> l3 id		: 0
> l2 id		: 0
> core id		: 0
> cpu cores	: 2
> 
> etc.

/sys/devices/system/cpu/cpuX/cache/indexY/shared_cpu_map has this info
already

There is one more patch in works which enables exporting the multi-core
topology through sysfs

http://www.ussg.iu.edu/hypermail/linux/kernel/0601.3/0275.html

thanks,
suresh

  reply	other threads:[~2006-02-11  0:51 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-02-09  9:59 [Patch] sched: new sched domain for representing multi-core Samuel Thibault
2006-02-11  0:51 ` Siddha, Suresh B [this message]
  -- strict thread matches above, loose matches on Subject: below --
2006-01-26  9:51 Siddha, Suresh B
2006-01-27  0:08 ` Ingo Molnar
2006-01-27  3:51   ` Siddha, Suresh B
2006-01-28  0:00     ` Andrew Morton
2006-01-31  1:28       ` Siddha, Suresh B
2006-02-01  1:12         ` Andrew Morton
2006-02-01  1:48           ` Siddha, Suresh B
2006-02-01  2:21             ` Andrew Morton
2006-02-01  2:52               ` Siddha, Suresh B
2006-01-27  4:42 ` Andi Kleen
2006-01-28  1:45   ` Siddha, Suresh B
2006-01-29 16:56 ` Pavel Machek
2006-01-31  1:31   ` Siddha, Suresh B

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