Resmon (Resource Monitor) is a tool in Windows that provides real-time data about your system’s performance. It shows detailed information on CPU, memory, disk, and network usage, helping diagnose performance issues.

How Resmon Works

Resmon collects data about your system’s resources and organizes it into tabs. It helps monitor and manage system performance by showing which processes and services are using system resources.

  • Monitors CPU, memory, disk, and network usage
  • Helps identify performance bottlenecks or resource hogs
  • Provides detailed process-level data for troubleshooting

Key Sections in Resmon

Resmon organizes its information into several key tabs.

TabDescription
OverviewDisplays a summary of resource usage (CPU, Memory, Disk, Network)
CPUShows detailed CPU usage by process, threads, and services
MemoryDisplays memory usage, including processes using the most RAM
DiskProvides information on disk activity and processes using disk resources
NetworkShows network activity, including data usage by processes

Using Resmon

Accessing Resmon

To open Resmon:

  1. Press Windows + R
  2. Type resmon and hit Enter

Common Tasks

  • Monitor CPU Usage
    The CPU tab shows real-time CPU usage and breaks it down by processes, services, and threads. You can identify which processes are consuming CPU resources.

    Example: Process "chrome.exe" using 20% CPU
  • Track Memory Usage
    The Memory tab displays how much RAM is being used by each process, making it easy to spot high memory usage.

    Example: "taskmgr.exe" using 1 GB of RAM
  • Check Disk Activity
    The Disk tab shows which processes are using your disk and how much data is being read or written. This helps identify disk-intensive tasks.

    Example: "msedge.exe" reading 300 MB from the disk
  • Monitor Network Activity
    The Network tab tracks network data usage and shows which processes are using the network, such as downloading or uploading files.