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# hostmetricsreceiver/memory

**Parent Component:** hostmetrics

## Default Metrics

The following metrics are emitted by default. Each of them can be disabled by applying the following configuration:

```yaml
metrics:
  <metric_name>:
    enabled: false
```

### system.memory.usage

Bytes of memory in use.

| Unit | Metric Type | Value Type | Aggregation Temporality | Monotonic |
| ---- | ----------- | ---------- | ----------------------- | --------- |
| By | Sum | Int | Cumulative | false |

#### Attributes

| Name | Description | Values |
| ---- | ----------- | ------ |
| state | Breakdown of memory usage by type. | Str: ``buffered``, ``cached``, ``inactive``, ``free``, ``slab_reclaimable``, ``slab_unreclaimable``, ``used`` |

## Optional Metrics

The following metrics are not emitted by default. Each of them can be enabled by applying the following configuration:

```yaml
metrics:
  <metric_name>:
    enabled: true
```

### system.linux.memory.available

An estimate of how much memory is available for starting new applications, without swapping. This is a more accurate alternative than system.memory.usage with state=free. (Linux only)

| Unit | Metric Type | Value Type | Aggregation Temporality | Monotonic |
| ---- | ----------- | ---------- | ----------------------- | --------- |
| By | Sum | Int | Cumulative | false |

### system.memory.utilization

Percentage of memory bytes in use.

| Unit | Metric Type | Value Type |
| ---- | ----------- | ---------- |
| 1 | Gauge | Double |

#### Attributes

| Name | Description | Values |
| ---- | ----------- | ------ |
| state | Breakdown of memory usage by type. | Str: ``buffered``, ``cached``, ``inactive``, ``free``, ``slab_reclaimable``, ``slab_unreclaimable``, ``used`` |