# vm.stats.vm.v_swappgs
Plugin: freebsd.plugin
Module: vm.stats.vm.v_swappgs
## Overview
The metric swap amount of data read from and written to SWAP.
This collector is supported on all platforms.
This collector supports collecting metrics from multiple instances of this integration, including remote instances.
### Default Behavior
#### Auto-Detection
This integration doesn't support auto-detection.
#### Limits
The default configuration for this integration does not impose any limits on data collection.
#### Performance Impact
The default configuration for this integration is not expected to impose a significant performance impact on the system.
## Metrics
Metrics grouped by *scope*.
The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.
### Per vm.stats.vm.v_swappgs instance
This metric shows events happening on SWAP.
This scope has no labels.
Metrics:
| Metric | Dimensions | Unit |
|:------|:----------|:----|
| mem.swapio | io, out | KiB/s |
## Alerts
The following alerts are available:
| Alert name | On metric | Description |
|:------------|:----------|:------------|
| [ 30min_ram_swapped_out ](https://github.com/netdata/netdata/blob/master/health/health.d/swap.conf) | mem.swapio | percentage of the system RAM swapped in the last 30 minutes |
## Setup
### Prerequisites
No action required.
### Configuration
#### File
The configuration file name for this integration is `netdata.conf`.
Configuration for this specific integration is located in the `[plugin:freebsd]` section within that file.
The file format is a modified INI syntax. The general structure is:
```ini
[section1]
option1 = some value
option2 = some other value
[section2]
option3 = some third value
```
You can edit the configuration file using the `edit-config` script from the
Netdata [config directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md#the-netdata-config-directory).
```bash
cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
sudo ./edit-config netdata.conf
```
#### Options
Config options
| Name | Description | Default | Required |
|:----|:-----------|:-------|:--------:|
| vm.stats.vm.v_swappgs | Enable or disable infoormation about SWAP I/O metric. | yes | no |