Monitoring Windows performance with PerfMon (Performance Monitor)

Windows Server includes a tool called Performance Monitor (or PerfMon), a powerful tool for monitoring system performance in real time. Administrators can collect performance data, identify bottlenecks, and establish performance baselines for servers.

Performance Monitor can be started from the Run dialog or command line:

perfmon.msc

The tool organizes measurements into performance objects and counters. Some useful counters include:

• Processor\% Processor Time
• Memory\Available MBytes
• PhysicalDisk\Avg. Disk Queue Length
• Network Interface\Bytes Total/sec
• System\Processor Queue Length

Performance logs can be collected over time, making it easier to compare normal system behavior with periods of unusually high activity. Regular monitoring helps identify CPU, memory, disk, or network bottlenecks before they begin affecting users.

Happy monitoring!