Messages in this thread | | | Date | Tue, 25 Mar 2008 14:08:25 +0000 | From | Luciano Rocha <> | Subject | Re: performance differences: "maxcpus=1" vs. "echo 0 > /sys/devices/system/cpu/cpu1/online" |
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On Tue, Mar 25, 2008 at 02:47:50PM +0100, Michael Meyer wrote: > Hi, > > what is the difference between booting a dual core > machine with "maxcpus=1" or by deactivating the second > core at run time with "echo 0 > > /sys/devices/system/cpu/cpu1/online"?
maxcpus=1 should turn off the SMP alternative and switch to UP only, optimising some locks and instructions.
-- Luciano Rocha <luciano@eurotux.com> Eurotux Informática, S.A. <http://www.eurotux.com/> [unhandled content-type:application/pgp-signature]
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