Subj : Re: WinXP Home vs Pro Thread performance
To   : comp.programming.threads
From : David Schwartz
Date : Fri Feb 25 2005 12:47 pm


"Joe" <good@bye.com> wrote in message 
news:421deda5$0$2763$cc9e4d1f@news-text.dial.pipex.com...
> Hi, I have a highly threaded demo app which I run on a PC with XP home 
> (SP1)
> and a Laptop with XP Pro (No SP).
>
> The CPU, memory etc of the two machines is similar.
>
> The order of execution of the threads execution  varies between the two
> machines - not a problem - but the program always completes twice as fast 
> on
> the laptop with Pro as opposed to the PC with Home.
>
> The PC does have more applications loaded which may slow things down, but 
> I
> wondered if there are any known software differences between the two
> flavours of the OS which might account for this significant performance
> difference?

    None that I've heard of. It's possible that your application is fragile 
in the sense that its performance critically depends upon things that happen 
to vary.

    DS

.