Re: [Patch] sched: new sched domain for representing multi-core

From: Siddha, Suresh B
Date: Fri Feb 10 2006 - 19:56:25 EST

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In reply to: Samuel Thibault: "Re: [Patch] sched: new sched domain for representing multi-core"
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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
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