Resource Monitor
Resource Monitor, a system application in some Microsoft Windows operating systems, displays information about the use of hardware (CPU, memory, disk, and network) and software (file handles and modules) resources in real time. Resource Monitor became available in Windows Vista and onwards (in Windows Vista, it forms part of the Reliability and Performance Monitor). Users can launch Resource Monitor by executing resmon.exe (perfmon.exe in Windows Vista).
The Vista and later Resource Monitor heavily leverages the Event Tracing for Windows (ETW) facilities introduced in Windows 7;
the counter setup (event tracing session) used by the Resource Monitor can provide logging as well.
Features
The Resource Monitor window includes five tabs:
Overview
CPU
Memory
Disk
Network
Accessing the application
Choose Start→All Programs→Accessories→System Tools→Resource Monitor.
%windir%\system32\perfmon.exe /res
%windir%\system32\resmon.exe
See also
Activity Monitor in OS X
System Monitor was available on Windows 95, 95 OSR, 95 OSR2, 98, 98SE, ME