Re: getting processor numbers

Ulrich Drepper
2007-04-03T19:55:41Z

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Siddha, Suresh B wrote:a
> Not all of the cpu* directories in /sys/devices/system/cpu may be
> online.

Apparently this information isn't needed. It's very easy to verify:

$ ls /sys/devices/system/cpu/*/online
/sys/devices/system/cpu/cpu1/online /sys/devices/system/cpu/cpu2/online
/sys/devices/system/cpu/cpu3/online

This is a quad core machine and cpu0 doesn't have the 'online' file
(2.6.19 kernel). So, if nobody noticed this it's not needed and we can
just remove CPUs from /sys/devices/system/cpu when they are brought
offline, right?

--
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖

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