> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rakumux.com/llms.txt
> Use this file to discover all available pages before exploring further.

# rtop

> What this machine, Rakumux and every session's processes use now, in the drawer beside the Feed, and for all your machines on rakumux.com.

**rtop** shows what this machine, Rakumux's own processes and every running session's processes use
now: CPU, memory and network. It lives in the drawer on the right, as a tab beside the
[Feed](https://docs.rakumux.com/account/feed.md). Nothing is recorded.

## In Rakumux

Press `t` in Rakumux mode (or **Settings → rtop**) to show the drawer on rtop with the keys; `t`
again hides it. The band at its top names both tabs, **≡ Feed** and **▥ rtop**: `f` and `t` switch
between them, and a click on a name shows that tab. rtop reads about every second, only while its tab
is on screen.

At the top, a line for the machine: CPU across every CPU, memory used of total, and bytes in and out a
second. Then a row each for this window, the server, your other windows and Rakumux's other programs
(its local API, the account service, CLI calls), and then each session, with its app and folder, its
processes as a tree under it when it runs more than one. **Total** stays at the bottom.

| Column | Shows |
| - | - |
| **PID** | The process id (hidden first when the drawer is narrow) |
| **CPU** | A percentage of one CPU, as `top` shows it: orange from 50%, pink from 100% |
| **MEMORY** | Resident memory |
| **↓ NET**, **↑ NET** | Bytes a second received and sent over its TCP connections (Linux), `—` where unknown; one **NET** column when narrow |

| Key | Does |
| - | - |
| `↑`, `↓` (`j`, `k`), `PgUp`, `PgDn`, `Home`, `End` | Select a row (a click selects one too) |
| `←`, `→` (`h`, `l`), `Space` | Fold or unfold a session's processes |
| `s` | Sort sessions by memory (the default), CPU, network or name; the sorted column has `▾` |
| `Enter` | Go into the selected row's session |
| `Esc` | Give the keys back to the list |
| `t` | Hide the drawer |

A server too old to report what it uses says so; restart it with `S`.

## On rakumux.com

Signed in, the drawer on the right of the web app has the same two tabs: **≡ Feed** and **▥ rtop**.
rtop shows each of your online machines (or the one the machine switcher in the header chose): the
machine's CPU, memory and network, Rakumux's own programs, and each session in its list, with **Total**
at the bottom. Click a session to open it. It reads every 2 seconds while it shows.

Your machines send what they use only while someone has rtop open there, and stop within about 20
seconds of it closing. They send numbers only: never process names, commands, arguments, paths or
process ids, and never a private session. rakumux.com keeps only each machine's latest figures, for
minutes. A machine whose Rakumux doesn't send them says **Update Rakumux there to see it here.**


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