On Tue, 2002-12-03 at 16:42, Calin A. Culianu wrote:
> Is this instruction being used in spin-wait loops? For some reason, I am
> having a hard time figuring out whether or not it is being used. There is
> a rep_nop() in processor.h.. but I can't determine if that is being called
> for spin lock lock/unlock code.
check cpu_relax() all over the kernel :)
and the spinlock code uses it inside it's own asm directly, not via
rep_nop()
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