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Swaptop

A real-time swap usage monitor for Linux and Windows systems with TUI interface. Lists processes using swap, displays consumption per-process/per-software, and provides live-updating graphs.

Badge Crates.io

Swaptop Demo

Tip

Blog post about this project: https://blog.wired.rs/posts/swaptop

Features

  • Real-time animated swap usage graph
  • Process-level swap consumption tracking
  • Grouped view by software (aggregate mode)
  • Multiple color themes (Dracula, Solarized, Monokai, Nord)
  • Unit conversion (KB/MB/GB)
  • Lightweight (<5MB memory usage)

Installation

Linux

Prerequisites

cargo install swaptop

Windows

Usage

Basic Launch

swaptop

Keyboard Controls

Key Action
q/Esc Quit application
k/m/g Switch units (KB/MB/GB)
a Toggle aggregate mode
t Cycle through themes
/u Scroll up
/d Scroll down
Ctrl+C Force quit
< / > Decrease / Increase interval

Swaptop unit Demo

Themes

Cycle through 5 beautiful themes:

  1. Dracula (default)
  2. Solarized
  3. Monokai
  4. Nord
  5. Default

Press t to cycle themes live.

Swaptop theme Demo

Technical Details

Data Collection

  • Reads /proc/meminfo for system swap stats
  • Parses /proc/[pid]/status for per-process swap
  • Uses procfs crate for safe access

Performance

  • Updates every 1 second by default
  • <1% CPU usage on modern systems
  • Memory footprint: ~4MB

Troubleshooting

No swap data showing?

  • Ensure you have active swap partitions/files
swapon --show

Permission issues? Run with:

sudo -E swaptop

License

MIT License - © 2025 luis


no matter where you are everyone is always connected

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swap usage monitor written in rust

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