Date: Sun, 19 Nov 2006 17:04:58 -0800
From: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
To: Arjan van de Ven <arjan@linux.intel.com>
Cc: linux-kernel@vger.kernel.org, ak@suse.de, akpm@osdl.org
Subject: Re: [patch] Export Last Level Cache topology to userspace
Message-ID: <20061119170458.A11031@unix-os.sc.intel.com>
References: <1163934920.31358.494.camel@laptopd505.fenrus.org>
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In-Reply-To: <1163934920.31358.494.camel@laptopd505.fenrus.org>; from arjan@linux.intel.com on Sun, Nov 19, 2006 at 12:15:20PM +0100
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On Sun, Nov 19, 2006 at 12:15:20PM +0100, Arjan van de Ven wrote:
> right now the sysfs topology information exports things like sibling
> maps (which cpu is a hyperthreading peer of another) and which "linux
> cpus" share the physical package. The patch below adds a bitmap in the
> same style that exports which "linux cpus" share the last level cache.

Arjan, This info is already exported today through

/sys/devices/system/cpu/cpuX/cache/indexY/shared_cpu_map

thanks,
suresh
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