From: Tony Williams 

Antti Kurenniemi wrote:
> "Mike '/m'"  wrote in message
> news:cvh7n19b0h8ur1it818qqhie5vrgkclnuq{at}4ax.com...
>
>>"For example, they show the number of CPU cycles needed to
"create and
>>start a process" as 1,032,000 for FreeBSD, 719,000 for Linux, and
>>5,376,000 for Windows/XP."
>>
>>Wow.
>
>
> So for a pretty basic 2GHz processor that would be 0.0025 or so seconds for
> Windows and 0.00035 seconds for Linux. Ok, so Linux beats Windows by 0.00215
> seconds. That means, that if I fire, let's say 1000 processes a day, I would
> gain 2.15 seconds a day! Now if it takes me about 3 months to learn Linux
> well enough to start using it, that means that only after 6605.93 years I'm
> already saving time! Wopeeeee!!!
>
>
> Antti Kurenniemi
> (in case you missed it, I was somewhat trying to point out the
"so what"
> factor of the cpu cycle counts. Really, so what?)

It's a big deal for real time systems. Think in terms of a context switch
triggered by an interrupt handler and 2ms is a *long* time.

--
Tony

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