How do i monitor performance in the system of a Java program in Windows XP?

I want to record the CPU usage and Memory usage on an hourly basis programatically, for an already running java class in Windows XP environment for the purpose of testing the Java class. The recording has to be done independent of the java class.By Cpu usage and Memory usage , i need to know how much of the computer's memory and CPU has been used by the java class.
I tried the HPROF tool available with J2SE 5.0, but it gives the details of each of the functions' usage in the program's allocated space in memory. moreover, it is not independent of the execution of the class.
The other option is to make use of the Performance tool available in Windows Xp->Administrative tools. This is a complex procedure, and i am not sure of how to proceed in this direction.

You can use the windows performance monitor (perfmon.exe / perfmon.msc). I don't know wther it is also included in the XP Home Edition. But this is the tool you are looking for. It can display the information in realtime but also can write to a protocoll.
Here's a shor description of what to do (i have a german windows so i'm more or less guessing the english terms)
- Start perfmon.msc
- In the tree on the you can see "systemonitor" (the realtime display) and "performance protocolls and warnings"
- open "performance protocalls and warnings", the first sub element should be something like"performance protocalls" or "performance indicator"
- open the context menu for it and create a new protocoll settings.
- add the information to it you are interested in and make other changes if you want
- start the new configuration
once you have the information you can display it it in the systemmonitor by selecting "display information from protocal" from the toolbar
It will take some time till you know what you are doing (and most of the information the performance monitor is useless to 99% of the people). But its a quite usfull tool once you know how to use it

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