# View Open Telemetry Data

DL Streamer Pipeline Server supports gathering metrics over Open Telemetry. The supported
metrics currently are:
- `cpu_usage_percentage`: Tracks CPU usage percentage of DL Streamer Pipeline Server Python process
- `memory_usage_bytes`: Tracks memory usage in bytes of DL Streamer Pipeline Server Python process
- `fps_per_pipeline`: Tracks FPS for each active pipeline instance in DL Streamer Pipeline Server

## Visualizing metrics in Prometheus

### For Docker

Open [`https://<HOST_IP>/prometheus/`](https://<HOST_IP>/prometheus/) in your browser to view
the Prometheus console.

### For Helm

Open [`https://<HOST_IP>:30443/prometheus/`](https://<HOST_IP>:30443/prometheus/) in your
browser to view the Prometheus console.

### Try Out the Following Queries
- `cpu_usage_percentage`
- `memory_usage_bytes`
- `fps_per_pipeline{}`
    - If you are starting multiple pipelines, then it can also be queried per pipeline ID.
    Example: `fps_per_pipeline{pipeline_id="658a5260f37d11ef94fc0242ac160005"}`

![Open telemetry fps_per_pipeline example in prometheus](../_assets/prometheus_fps_per_pipeline.png)
    *Open telemetry fps_per_pipeline example in Prometheus*