rust-top

A terminal-based system monitor written in Rust. Displays real-time CPU, memory, disk, network, temperature, and process information in a graphical TUI.

Features

• CPU — per-core usage graphs, total usage bar, model/cache info
• Memory — RAM and swap usage
• Temperatures — CPU, NVMe, and NIC sensors (Linux: lm-sensors, macOS: sysinfo)
• Disk — usage, filesystem, mount point, and live I/O rates
• Network — RX/TX histogram with total throughput and local IP
• Processes — live process list sorted by CPU usage with memory %
• Configurable refresh rate (1000–5000ms)

Requirements

Linux:

• lm-sensors installed and configured (sensors-detect)

# Debian/Ubuntu
sudo apt install lm-sensors
sudo sensors-detect

# Arch
sudo pacman -S lm_sensors
sudo sensors-detect

macOS: No additional dependencies.

WSL: No additional dependencies.

Layout

Building

Debug

• cargo build
• cargo run

Release

• cargo build --release
• cargo run --release

Benchmarking

d-hat memory allocations

• cargo run --release --features dhat-heap which produces a dhat-heap.json which shows the data inside https://nnethercote.github.io/dh_view/dh_view.html.