You probably already have one of the best network performance tools installed on your network. Microsoft includes System Monitor (formerly known as Performance Monitor and synonymously referred to as Perfmon) since the days of Windows NT. Perfmon provides current, accurate information on thousands of different attributes of your network, and you can easily draft it for WLAN performance monitoring.
To start Perfmon, either select its snap-in from the Microsoft Management Console (MMC) or enter Perfmon in the command line.
You might already use Perfmon to keep an eye on your wired network. The tool makes it easy to monitor both your wired network and WLAN. shows how Perfmon looks when it is first started.
just type ctrl-alt-del and when task manager comes up it will have a system monitor tab that shows memory and CPU usage (not sure if that was what you wanted) You might want to try clicking START - RUN - and then type perfmon.msc in the COMMAND field. Follow the info found at http://support.Microsoft.com/kb/305610 for details on using perfmon or performance monitor.
Its the time the hard drive spends reading and writing. and measured as a percentage. The more processes you have running in the background, the higher the Disk Active time. Sometimes you'll hear a term called "disk thrashing" which is where the HD spends an exceedingly amount of read/write time. This can be caused by such processes as "Superfetch" or having Automatic defragmenting running. Disk Active time is viewed by entering Perfmon in the Start Menu. :-)
I have a client who has a very intensive application that runs on a Windows Server 2003 machine. The application uses SQL Server 2005 and the database size is about 1GB. The problem is, this application takes up all available memory (about 3 GB) and CPU usage goes over 100% for most of the time. I'm not sure if it's because the application is using too much RAM or what. What would be the best way to monitor the performance of this application so we can find out why it's taking up so much resources? You could use PerfMon to see how your system is performing in real-time. You'll want to look at Memory Usage, Processor Time, Disk Reads/Writes, etc. You can also use Process Explorer to get more detailed information about which processes are consuming the most resources.
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