# Prometheus metrics

Metrics for the processes and other aspects are provided for a Prometheus scraper on `/metrics`.

{% hint style="success" %}
You have to set [metrics.enable](/core/configuration/metrics.md#enable-bool) and [metrics.enable\_prometheus](/core/configuration/metrics.md#enable_prometheus-bool) to `true` in the settings
{% endhint %}

Currently, available metrics are:

<table><thead><tr><th width="248">Metric</th><th width="101">Type</th><th>Dimensions</th><th>Description</th></tr></thead><tbody><tr><td>ffmpeg_process</td><td>gauge</td><td><code>core</code>, <code>process</code>, <code>name</code></td><td>General stats per process.</td></tr><tr><td>ffmpeg_process_io</td><td>gauge</td><td><code>core</code>, <code>process</code>, <code>type</code>, <code>id</code>, <code>index</code>, <code>media</code>, <code>name</code></td><td>Stats per input and output of a process.</td></tr><tr><td>mem_limit_bytes</td><td>gauge</td><td><code>core</code></td><td>Total available memory in bytes.</td></tr><tr><td>mem_free_bytes</td><td>gauge</td><td><code>core</code></td><td>Free memory in bytes.</td></tr><tr><td>net_rx_bytes</td><td>gauge</td><td><code>core</code>, <code>interface</code></td><td>Number of received bytes by interface.</td></tr><tr><td>net_tx_bytes</td><td>gauge</td><td><code>core</code>, <code>interface</code></td><td>Number of sent bytes by interface.</td></tr><tr><td>cpus_system_time_secs</td><td>gauge</td><td><code>core</code>, <code>cpu</code></td><td>System time per CPU in seconds.</td></tr><tr><td>cpus_user_time_secs</td><td>gauge</td><td><code>core</code>, <code>cpu</code></td><td>User time per CPU in seconds.</td></tr><tr><td>cpus_idle_time_secs</td><td>gauge</td><td><code>core</code>, <code>cpu</code></td><td>Idle time per CPU in seconds.</td></tr><tr><td>session_total</td><td>counter</td><td><code>core</code>, <code>collector</code></td><td>Total number of sessions by collector.</td></tr><tr><td>session_active</td><td>gauge</td><td><code>core</code>, <code>collector</code></td><td>Current number of active sessions by collector.</td></tr><tr><td>session_rx_bytes</td><td>counter</td><td><code>core</code>, <code>collector</code></td><td>Total received bytes by collector.</td></tr><tr><td>session_tx_bytes</td><td>counter</td><td><code>core</code>, <code>collector</code></td><td>Total sent bytes by collector.</td></tr></tbody></table>


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.datarhei.com/core/general/prometheus-metrics.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.