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SubjectRe: Locking comment on shrink_caches()
Date
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> 	PIII:
> nothing: 32 cycles
> locked add: 50 cycles
> cpuid: 170 cycles
>
> P4:
> nothing: 80 cycles
> locked add: 184 cycles
> cpuid: 652 cycles


Original core Athlon (step 2 and earlier)

nothing: 11 cycles
locked add: 22 cycles
cpuid: 67 cycles

generic Athlon is

nothing: 11 cycles
locked add: 11 cycles
cpuid: 64 cycles


I don't currently have a palomino core to test

Wait for AMD to publish graphs of CPUid performance for PIV versus Athlon 8)


Alan
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