Hi Deepa,

Well your question brought me out of exile after a long time...

With regards to using Perfmon to measure performance statistics, as explained earlier it is a windows inbuilt tool.

You can ascertain certain performance counters related to the machine where the test application is being run. Counters would be in terms of -
Pages / Sec in terms of Memory used, Avg Disk Queue Length in terms of Physical Disk, % Processor Time used in terms of CPU utilization.

Go to Run - type perfmon and click ok. You would find the Performance window open up. You would find all the mentioned counters listed under System Monitor.

By Default monitoring happens only for the system on which test application is running or where Perfmon command is executed. Incase you have a lan where other machines are connected and you have administrative rights on those as well, you could measure the required counters on those machines also.

Go to Performance Logs and Alerts in Perfmon - Right click on Alerts and select New Alert Settings. Once you name the alert, Click on Add... A list of counters would be displayed and you would find a drop-down indicating the machine where it is being measured.

Select the required machine, Select the required Performance Object and select the desired counters. Click on Explain and you can understand what each counter signifies. You can also set threshold limits for each counter. You can specify the action to be taken incase of an alert and also schedule the performance monitoring to be done for a specific time.

Hope this gives a bit of insight into Performance monitoring....

Cheers...
Umesh