PoolChunkMetric (Netty5/Buffer 5.0.0.Alpha5 API)

```
public interface PoolChunkMetric
```
Metrics for a chunk.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`chunkSize()`	Return the size of the chunk in bytes, this is the maximum of bytes that can be served out of the chunk.
`int`	`freeBytes()`	Return the number of free bytes in the chunk.
`int`	`pinnedBytes()`	Return the number of pinned bytes in the chunk.
`int`	`usage()`	Return the percentage of the current usage of the chunk.

- Method Detail
  - usage
```
int usage()
```
    Return the percentage of the current usage of the chunk.
  - chunkSize
```
int chunkSize()
```
    Return the size of the chunk in bytes, this is the maximum of bytes that can be served out of the chunk.
  - freeBytes
```
int freeBytes()
```
    Return the number of free bytes in the chunk.
  - pinnedBytes
```
int pinnedBytes()
```
    Return the number of pinned bytes in the chunk.