Re: Locking comment on shrink_caches()

From: Alan Cox (
Date: Wed Sep 26 2001 - 12:50:08 EST

and for completeness

VIA Cyrix CIII (original generation 0.18u)

nothing: 28 cycles
locked add: 29 cycles
cpuid: 72 cycles

Pentium Pro

nothing: 33 cycles
locked add: 51 cycles
cpuid: 98 cycles

(base comparison - pure in order machine)

IDT winchip

nothing: 17 cycles
locked add: 20 cycles
cpuid: 33 cycles

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This archive was generated by hypermail 2b29 : Sun Sep 30 2001 - 21:00:47 EST