yoinky 0.2.0

TUI tool for monitoring system resources like CPU, RAM, and GPU.
yoinky-0.2.0 is not a library.

Yoinky :: System Monitor

Yoinky is a Linux system monitor built with Rust and ratatui. The interface now behaves more like a compact dashboard instead of a static snapshot: it keeps live history, shows per-core activity, highlights busy processes, and surfaces system context such as load, uptime, storage pressure, and network throughput.

Features

  • Live pulse panels: CPU, memory, and network sparklines update continuously.
  • Per-core histogram: Core activity is rendered as grouped bars for quick hotspot detection.
  • Tabbed workspace: Split the interface into Overview, Processes, Devices, and I/O pages.
  • Process spotlight: Processes are now scrollable and can be sorted by CPU, memory, or PID.
  • System signature panel: Host, OS, kernel, CPU model, frequency, uptime, load averages, and task summary are all visible together.
  • Memory and swap pressure: Separate gauges for RAM and swap.
  • Storage telemetry: Root filesystem usage with totals and utilization percentage.
  • Disk throughput lanes: Read and write rates per physical disk.
  • Network throughput: Active interface plus live download and upload rates, with per-interface tables.
  • GPU awareness: NVIDIA and AMD temperature support, with extra utilization and VRAM details when nvidia-smi is available.
  • Device telemetry: Battery state and hwmon temperature sensors when the host exposes them.
  • Responsive layout: Falls back to a compact summary view on smaller terminals.

🛠️ Technology Stack

  • Rust: The core programming language, chosen for its safety and performance.
  • ratatui: A TUI (Terminal User Interface) library for creating rich, interactive terminal applications.
  • crossterm: A terminal manipulation library used as a backend for ratatui.
  • procfs: A library to access system and process information from the /proc filesystem on Linux.

🚀 Getting Started

Prerequisites

  • Rust (and Cargo) installed on your system.
  • On NVIDIA systems: nvidia-smi command-line tool must be installed and in your PATH.
  • On AMD systems: rocm-smi may be required for temperature readings on newer cards.

Run From Source

cargo run

Optional Flags

cargo run -- --tick-rate-ms 500 --history 180
  • --tick-rate-ms: refresh interval in milliseconds.
  • --history: number of samples stored for the sparkline charts.

Controls

  • Tab, l, Right: next tab
  • Shift+Tab, h, Left: previous tab
  • j, Down: scroll process list
  • k, Up: scroll process list upward
  • s: cycle process sorting mode
  • q, Esc: quit

Installation

  1. Install Yoinky using Cargo:
cargo install yoinky
  1. Run the application:
yoinky
  1. Press q or Esc to exit.

Development Notes

  • The TUI must run inside a real terminal because raw mode and the alternate screen are required.
  • cargo check is enough for non-interactive CI validation, but cargo run should be tested in a terminal emulator.

Screenshot

Yoinky