Re: FW: Linux question

Bill Davidsen wrote
Justin Banks wrote:
Miller, Mike (OS Dev) wrote
Is there a way in to limit the kernel to seeing only the cores on a
single processor and ignore all other processor cores (eg. leave
them in HALT)?

Can't you just echo 0 into /sys/devices/system/cpu/cpuN/online where the
/sys/devices/system/cpu/cpuN/topology/physical_package_id isn't the one
you want to keep online?

Here's an interesting question, why isn't there an "online" file for
each CPU?

I've noticed that as well, and I'm not sure. IIRC, on some systems I've
seen there's an online file for every CPU, but on my laptop (2.6.22
Intel Mac) there isn't one for cpu0, just as in your example.

-justinb

--
Justin Banks
BakBone Software
justinb@xxxxxxxxxxx
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