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# Process Monitor
A bottom-style process monitor for Noctalia: live CPU/RAM/swap bars and a
sortable, searchable process table with a per-process kill action, all in a
panel. Great for spotting a runaway process or a zombie and killing it without
opening a terminal.
## Plugin
| Field | Value |
| ------- | -------------------------------------------------------- |
| ID | `weinguyen/procmon` |
| Entries | Bar widget: `widget`; panel: `panel`; service: `service` |
## Requirements
Install `ps`, `kill`, `head`, `grep` and `cat` on `PATH` (all are present on
virtually every Linux distribution).
## Usage
Add the **Process Monitor** widget to a bar. It shows the current CPU and RAM
usage (plus the process count). Click the widget to toggle the process panel:
```sh
noctalia msg panel-toggle weinguyen/procmon:panel
```
The panel shows CPU, RAM and swap bars with the 1/5/15-minute load averages,
then a process table. Sort by the column dropdown (PID, CPU%, MEM%, RSS,
COMMAND) and flip asc/desc with the arrow button. Type in the filter box to
match a process by name, user or PID. Click the ✕ button on a row to run the
configured kill command against that PID (default `kill -TERM`). Zombie
processes are tinted with the error color so they stand out.
The table refreshes on the interval set in the `refresh_interval` setting. The
panel re-renders automatically as new samples arrive, so the view stays live
while it is open.
## Settings
| Setting | Type | Default | Description |
| ------------------ | -------- | ------------ | ------------------------------------------------------------------------------------------ |
| `refresh_interval` | `int` | `1000` | Process resample interval in milliseconds. (default 1000) |
| `sort_by` | `select` | `cpu` | Initial sort column when the panel opens (`cpu`, `mem`, `pid`, `cmd`). |
| `kill_command` | `string` | `kill -TERM` | Command run against a selected PID; the PID is appended. Empty falls back to `kill -TERM`. |
| `show_count` | `bool` | `true` | Bar widget also shows the total process count. |
## Notes
- **Spawns processes.** A background service runs `ps` every 2nd refresh
interval (the process table changes slowly) and reads `/proc` stats every
interval; `runAsync` runs the configured `kill_command` when a row's ✕ is
clicked. There is no confirmation dialog, so check the PID before clicking.
- The bar widget only renders data the service publishes; it never runs
commands. The panel runs the configured `kill_command` when a row's ✕ is
clicked.
- Requires `plugin_api = 13`. The panel renders a windowed slice of the
process table and follows the keyboard cursor with edge-follow scrolling
(window slides only when the cursor pushes past an edge, so scrolling up
doesn't collapse the page until the top edge is reached). CPU%, RAM%, swap
and the 1/5/15-minute load averages are sampled from `/proc` (`/proc/stat`,
`/proc/meminfo`, `/proc/loadavg`) by the service, so they work with no
separate system-monitor dependency.