Resource Monitor, a utility in Windows Vista and later, displays information about the use of hardware (CPU, memory, disk, and network) and software (file handles and modules) resources in real time.[1] 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;[2]
the counter setup (event tracing session) used by the Resource Monitor can provide logging as well.[3]
Features
The Resource Monitor window includes five tabs:[4]
Overview
CPU
displays column lists of Processes, Services, Associated Handles and Associated Modules; charts of CPU Usage (separate for every core)
Memory
displays overall Physical Memory consumption and separate consumption of every Process; charts of Used Physical Memory, Commit Charge and Hard Faults/sec
Disk
displays Processes with Disk Activity and Storage; charts of Disk Usage (KB/sec) and Disk Queue Length
Network
displays Processes with Network Activity, TCP Connections and Listening Ports; charts of Network Usage (separate for every adapter) and TCP Connections
Ways to start the application
Choose Start→Type to search "Resource Monitor".
Start Windows Task Manager→select Performance tab→Click the "Open Resource Monitor" link at the lower left corner.
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Tulloch, Mitch; Northrup, Tony; Honeycutt, Jerry; Wilson, Ed (October 7, 2009). Windows 7 Resource Kit. Pearson Education (published 2009). ISBN9780735642775. Retrieved June 3, 2014. The Resource Overview screen of the Reliability and Performance Monitor Control Panel item in Windows Vista has become a separate tool in Windows 7 called Resource Monitor [...].