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I want to make cpu0 offline. I have dual core laptop. I can make cpu1 offline ( using offline file ) but can't make cpu0 offline. How to do this ?

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Are you trying to take cpu0 offline after taking cpu1 offline, or are you trying to do this separately? –  Jeremy Kerr Nov 13 '12 at 5:20
    
No. I want to make cpu0 offline only. ( while keeping cpu1 online ) –  Viraj Nov 13 '12 at 6:00
    

1 Answer 1

to enable a cpu0

you can use this

echo 1 | sudo tee /sys/devices/system/cpu/cpu0/online

and to disable

echo 0 | sudo tee /sys/devices/system/cpu/cpu0/online
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