Messages in this thread |  | | | Date | Tue, 29 Jul 1997 18:31:56 +0200 (MET DST) | | From | Ingo Molnar <> | | Subject | Re: Interesting pentium-memcpy results |
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On Tue, 29 Jul 1997, Albert D. Cahalan wrote:
> > +__memcpy_g (void *_to, const void *_from, __kernel_size_t _bytes) > > +{ > > + if (bytes >= 1024) { > > That is what I meant: the test itself adds overhead.
[sorry i misunderstood your sentence.]
i dont think this test adds noticeable overhead. Small constant memcpy's are already filtered out by the 'builtin_constant' stuff, and thats the majority. I cant think of anything in the 'few bytes range' that has variable size memcpy ... maybe i'm missing something.
-- mingo
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