Messages in this thread |  | | Date | Wed, 26 Sep 2001 14:59:23 -0400 (EDT) | From | George Greer <> | Subject | Re: Locking comment on shrink_caches() |
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On Wed, 26 Sep 2001, Alan Cox wrote:
>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
2x Pentium MMX 233MHz
nothing: 14 cycles locked add: 59 cycles cpuid: 31 cycles
2x Pentium 133MHz
nothing: 14 cycles locked add: 76 cycles cpuid: 31 cycles
cpuid is oddly fast.
-- George Greer, greerga@m-l.org | Genius may have its limitations, but stupidity http://www.m-l.org/~greerga/ | is not thus handicapped. -- Elbert Hubbard
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