[Nottingham] Linux disable CPU or CPU core

Martin martin at ml1.co.uk
Tue Mar 4 14:08:33 GMT 2008

Graeme Fowler wrote:
> On Tue, 2008-03-04 at 13:37 +0000, Martin wrote:
>> Does anyone know if a /proc or /sys tweak can be used to enable/disable
>> a CPU or CPU core in a running Linux system?
> echo 0 >> /sys/devices/system/cpu/cpu1/online
> I didn't know that until I just Googled for it. It's a nice trick :)

Excellent! Thanks. Your Googling prowess beats mine on that one.

Yep... Linux is cool stuff! :-)


Martin Lomas
martin at ml1.co.uk

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