Messages in this thread | | | Subject | Re: Locking comment on shrink_caches() | Date | Wed, 26 Sep 2001 18:40:15 +0100 (BST) | From | Alan Cox <> |
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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)
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