Re: performance differences: "maxcpus=1" vs. "echo 0 > /sys/devices/system/cpu/cpu1/online"

From: Andi Kleen
Date: Tue Mar 25 2008 - 13:54:23 EST


> What kind of CPU are you using? Some Intel CPU's do "funny stuff",
> like dynamically overclocking itself when working on a single thread,
> or using all of the 2nd level cache instead of sharing it with the
> second core.

P0 should also work fine with cpu hotplug. At least in theory.

-Andi
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/