Messages in this thread | | | Date | Mon, 27 Apr 1998 01:15:03 -0400 (EDT) | From | <> | Subject | Re: faster strcpy() |
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Do other OSes do Lazy FPU stuff like Linux?
On Sun, 26 Apr 1998, Dean Gaudet wrote:
> On Sun, 26 Apr 1998, Vojtech Pavlik wrote: > > > By the way, using FPU for the strcpy might be even faster. > > from what I heard from Pavel Machek <pavel@ucw.cz> with a couple > > really weird tricks this can be done very fast. If I remember > > correctly, he was talking to the glibc people already about it. > > Which of course can't be used at all on SMP boxes; and I even have doubts > about its performance on a UP box when you've got more than one task > going. strcpy() is not an uncommon routine, if all the processes on a box > were using the FPU to do strcpy() it probably won't be a pretty thing -- > every context switch would require FPU switching as well. > > Dean > > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.rutgers.edu >
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