---
title: stats.autotuner
description: Periodic Ruby process memory and object metrics from Autotuner. Field names depend on the Autotuner version and enabled checks.
url: https://docs.honeybadger.io/insights/event-types/ruby/stats.autotuner/
---

Periodic Ruby process memory and object metrics from Autotuner. Field names depend on the Autotuner version and enabled checks.

Source **Autotuner** Category **Metrics** Fields **4** [honeybadger-ruby](https://docs.honeybadger.io/lib/ruby/)

## Fields

| Field         | Type   | Description                                                                                                               |
| ------------- | ------ | ------------------------------------------------------------------------------------------------------------------------- |
| `event_type`  | string | Allowed value: `stats.autotuner`.                                                                                         |
| `request_id`  | string | Rails request UUID, present on any event fired during a web request context. Set by the Honeybadger agent when available. |
| `hostname`    | string | Server hostname. Attached to every event by default (events.attach\_hostname).                                            |
| `environment` | string | Application environment, e.g. "production". Attached to every event by default (events.attach\_environment).              |

## Example

```json
{
  "event_type": "stats.autotuner",
  "request_time": 145.2,
  "gc_time": 12.4,
  "minor_gc_count": 3,
  "major_gc_count": 0,
  "heap_pages": 5460,
  "hostname": "web-1.example.com",
  "environment": "production"
}
```

---

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