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    SubjectRe: [PATCH 1/3] x86: modify show_shared_cpu_map in intel_cacheinfo v3
    On Tue, Apr 8, 2008 at 10:44 PM, Mike Travis <travis@sgi.com> wrote:
    > Btw, you were asking about how to determine NR_CPUS. Here's one way:
    >
    > root@newton:~# cat /sys/devices/system/cpu/online
    > 0-2,4-7
    > root@newton:~# cat /sys/devices/system/cpu/possible
    > 0-511
    > root@newton:~# cat /sys/devices/system/cpu/present
    > 0-7
    > root@newton:~# cat /sys/devices/system/cpu/system
    > 0-4095
    I think its easier to count the commas from a cpumask file. Here you
    must parse a complete list expression, just to get the max id.

    Either way, I think this isn't a very clean way.

    Bert
    > Thanks,
    > Mike
    >


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