Perfmon
Perfmon, short for Performance Monitor, is a Windows system tool used to monitor and analyze the performance of a computer in real-time. It collects data on various system resources such as CPU usage, memory, disk activity, and network performance through performance counters. This tool helps administrators and developers diagnose performance bottlenecks, track system health, and optimize resource utilization.
Developers should learn Perfmon when working on Windows-based applications or systems to identify performance issues, such as high CPU or memory usage, that could affect application responsiveness. It is particularly useful for debugging and tuning applications in production or test environments, ensuring efficient resource management and meeting performance requirements.