BlackHawke wrote:
> Hello!
>
> I am running a server program on windows XP. The computer is capable of
> having dual CPU's, but only has one at the moment.
>
> When I run this Java based server, the CPU usage for the app goes up to 50%,
> while the system idle remains at roughly 48%.
>
> I suspected immediately that the OS simply believes that there are two CPU's
> of the same speed (and indeed, the task manager shows 2 cpu's though there
> is only one)... However the responsiveness of the OS indicates to me that
> indeed 48% of the resources are in idle. Even when giving the Java app the
> highest priority, the os remains perfectly responsive. When launching other
> apps, they get significant portions, if not all of the system idle speed,
> bringing the total CPU usage to 100% (the java app is still at 48-50%)...
> All of this, especially the perfect responsiveness of the OS to commands
> despite the high "Java" priority, suggest to me that the numbers are
> accurate.
>
> I need the java program to have full use of the CPU... Why is it only using
> 50%, and how can I change this?
>
> Thank you for your time and attention.
> Nick Soutter
> Lamar Games
> www.lamargames.net
>
>
Sounds like you have a P4 with HT, and your app is not taking
advantage of HT. You'll need to recode your app.
Turning off HT will let your app use 100% of what's left, but
that may turn out to be no more throughput than what you already
had with HT on.
--
Cheers, Bob
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