Re: kernel 2.6 speed

From: Alan Cox
Date: Sun Jul 24 2005 - 18:24:02 EST

On Sul, 2005-07-24 at 12:12 -0700, Ciprian wrote:
> I'm not an OS guru, but I ran a little and very simple
> test. The program bellow, as you can see, measures the
> number of cycles performed in 30 seconds.

No it measures the performance of the "time()" call. Windows has some
funky optimisations that we never bother with because time() isn't a hot
path in the real world.

Instead try code which does

while(count++ < LOTS) {

and you'll find the numbers on pure CPU work are essentially CPU bound
not OS affected at all

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