DragonFly kernel List (threaded) for 2004-04
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Re: pipe testing and kernel copyin/copyout/bcopy performance
:Matthew Dillon wrote:
:> You also cannot mix normal writes with non-temporal writes. Well, you
:> *can* mix the instructions, but the result will be truely hideous (verses
:> simply horrible) memory performance...
:
:Does the compiler generally keep you out of such situations, or do
:you find yourself writing your C code around such problems as these?
The compiler does not generate non-temporal write instructions.
-Matt
Matthew Dillon
<dillon@xxxxxxxxxxxxx>
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