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Ubuntu System Monitor

CPU, memory, disk and GPU readings, live, in one window.

Platform
Linux
Version
1.0.0
Updated
4 Nov 2026
Size
49 KB
  • Linux .tar.gz, 49 KB Download

    Source and launcher scripts, ready to run.

    SHA-256 checksum 88cf19975f081f222a809926348ea9af0e5a4e621002f3fb8307ffc2f8c971bd

    Check the file after downloading with sha256sum pc-monitor-1.0.0.tar.gz.

The Overview tab: gauges for CPU, memory, GPU and root disk, and live charts below.
Overview. Four gauges, with live history under them.

A system monitor for Ubuntu laptops. Gauges and 60-second charts show the processor, memory, swap, disks, both graphics cards and the battery, and a folder explorer lists what is using your disk, largest first.

It reads Linux's own counters (/proc, sysfs) and NVIDIA's tools, so it needs no daemon and no root access. The window is dark, and it refreshes every half second to every five seconds.

What it does

  • Overall and per-thread CPU load, clock speed, temperatures and load average
  • RAM and swap, with cache and buffers broken out
  • Every mounted partition, plus live disk read and write rates
  • A folder and file size explorer that scans only when you press Scan, on a background thread you can stop
  • Intel and NVIDIA GPUs together, including the NVIDIA card's idle power state
  • Battery level and whether the charger is connected
  • Refresh rate you choose, a pause button, and a command-line option to open on any tab

Install

  1. Extract the download and open the folder.

    tar xzf pc-monitor-1.0.0.tar.gz
cd pc-monitor-1.0.0

  2. Install the two Python packages.

    sudo apt install python3-psutil python3-pyqt6

  3. Run it from the folder, or add it to your Applications menu.

    ./run.sh
./install.sh

You need

  • Ubuntu 22.04, 24.04 or a newer Linux
  • Python 3.10 or newer
  • PyQt6 6.4+ and psutil 5.9+ (the steps below install them)

Good to know

  • The program stays where you extracted it: the menu entry and the system-monitor command point into that folder. Run ./install.sh --uninstall to remove them.

More screenshots

Screenshots are from my own laptop.