monitr-0.1.2 is not a library.
monitr
monitr is a lightweight macOS activity monitor for the terminal. It is built in Rust with Ratatui and focuses on a fast process table, low overhead sampling, and an Activity Monitor-style layout.
Features
- CPU, Memory, Energy, Disk, and Network views
- Sortable process table with fast keyboard navigation
- Process filter by PID, name, user, command, or status
- Inspector panel for the selected process
- CPU, memory, virtual memory, runtime, status, user, parent PID, command, executable, and current working directory
- Disk read/write rates and totals
- macOS thread count for the selected process
- Open file counts where the OS exposes them
- Confirmed TERM and KILL actions
- Small native release binary
Install
Install from crates.io:
Build from source:
Or install into ~/.local/bin from this checkout:
Usage
Start with a custom refresh interval:
Start with a filter:
Controls
| Key | Action |
|---|---|
1-5, Tab |
Switch views |
j/k, arrows |
Move selection |
PageUp/PageDown, Home/End |
Jump in the process table |
/ |
Filter processes |
s |
Cycle sort key |
S |
Reverse sort direction |
c, m, e, d, n, p, u |
Sort by CPU, memory, energy impact, disk, name, PID, user |
i, Enter |
Toggle inspector |
t |
Send TERM after confirmation |
f |
Send KILL after confirmation |
+, - |
Adjust refresh interval |
r |
Refresh now |
? |
Help |
q, Esc |
Quit |
Scope
monitr is intended to be a faster, lighter terminal alternative to Activity Monitor for common process and system inspection. It does not use Apple's private Activity Monitor internals, so some values are approximations or interface-level summaries:
- Energy impact is a lightweight estimate based on CPU, memory share, I/O, and run state.
- Network data is interface-level, not per-process.
- Some process details depend on macOS permissions and may show
-for protected processes.
Development
This runs formatting, clippy, unit tests, and a release build.