PoolArenaMetric (Netty API Reference (4.1.11.Final))

```
public interface PoolArenaMetric
```
Expose metrics for an arena.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`List<PoolChunkListMetric>`	`chunkLists()` Returns an unmodifiable `List` which holds `PoolChunkListMetric`s.
`long`	`numActiveAllocations()` Return the number of currently active allocations.
`long`	`numActiveBytes()` Return the number of active bytes that are currently allocated by the arena.
`long`	`numActiveHugeAllocations()` Return the number of currently active huge allocations.
`long`	`numActiveNormalAllocations()` Return the number of currently active normal allocations.
`long`	`numActiveSmallAllocations()` Return the number of currently active small allocations.
`long`	`numActiveTinyAllocations()` Return the number of currently active tiny allocations.
`long`	`numAllocations()` Return the number of allocations done via the arena.
`int`	`numChunkLists()` Returns the number of chunk lists for the arena.
`long`	`numDeallocations()` Return the number of deallocations done via the arena.
`long`	`numHugeAllocations()` Return the number of huge allocations done via the arena.
`long`	`numHugeDeallocations()` Return the number of huge deallocations done via the arena.
`long`	`numNormalAllocations()` Return the number of normal allocations done via the arena.
`long`	`numNormalDeallocations()` Return the number of normal deallocations done via the arena.
`long`	`numSmallAllocations()` Return the number of small allocations done via the arena.
`long`	`numSmallDeallocations()` Return the number of small deallocations done via the arena.
`int`	`numSmallSubpages()` Returns the number of small sub-pages for the arena.
`int`	`numThreadCaches()` Returns the number of thread caches backed by this arena.
`long`	`numTinyAllocations()` Return the number of tiny allocations done via the arena.
`long`	`numTinyDeallocations()` Return the number of tiny deallocations done via the arena.
`int`	`numTinySubpages()` Returns the number of tiny sub-pages for the arena.
`List<PoolSubpageMetric>`	`smallSubpages()` Returns an unmodifiable `List` which holds `PoolSubpageMetric`s for small sub-pages.
`List<PoolSubpageMetric>`	`tinySubpages()` Returns an unmodifiable `List` which holds `PoolSubpageMetric`s for tiny sub-pages.

- Method Detail
  - numThreadCaches
```
int numThreadCaches()
```
    Returns the number of thread caches backed by this arena.
  - numTinySubpages
```
int numTinySubpages()
```
    Returns the number of tiny sub-pages for the arena.
  - numSmallSubpages
```
int numSmallSubpages()
```
    Returns the number of small sub-pages for the arena.
  - numChunkLists
```
int numChunkLists()
```
    Returns the number of chunk lists for the arena.
  - tinySubpages
```
List<PoolSubpageMetric> tinySubpages()
```
    Returns an unmodifiable List which holds PoolSubpageMetrics for tiny sub-pages.
  - smallSubpages
```
List<PoolSubpageMetric> smallSubpages()
```
    Returns an unmodifiable List which holds PoolSubpageMetrics for small sub-pages.
  - chunkLists
```
List<PoolChunkListMetric> chunkLists()
```
    Returns an unmodifiable List which holds PoolChunkListMetrics.
  - numAllocations
```
long numAllocations()
```
    Return the number of allocations done via the arena. This includes all sizes.
  - numTinyAllocations
```
long numTinyAllocations()
```
    Return the number of tiny allocations done via the arena.
  - numSmallAllocations
```
long numSmallAllocations()
```
    Return the number of small allocations done via the arena.
  - numNormalAllocations
```
long numNormalAllocations()
```
    Return the number of normal allocations done via the arena.
  - numHugeAllocations
```
long numHugeAllocations()
```
    Return the number of huge allocations done via the arena.
  - numDeallocations
```
long numDeallocations()
```
    Return the number of deallocations done via the arena. This includes all sizes.
  - numTinyDeallocations
```
long numTinyDeallocations()
```
    Return the number of tiny deallocations done via the arena.
  - numSmallDeallocations
```
long numSmallDeallocations()
```
    Return the number of small deallocations done via the arena.
  - numNormalDeallocations
```
long numNormalDeallocations()
```
    Return the number of normal deallocations done via the arena.
  - numHugeDeallocations
```
long numHugeDeallocations()
```
    Return the number of huge deallocations done via the arena.
  - numActiveAllocations
```
long numActiveAllocations()
```
    Return the number of currently active allocations.
  - numActiveTinyAllocations
```
long numActiveTinyAllocations()
```
    Return the number of currently active tiny allocations.
  - numActiveSmallAllocations
```
long numActiveSmallAllocations()
```
    Return the number of currently active small allocations.
  - numActiveNormalAllocations
```
long numActiveNormalAllocations()
```
    Return the number of currently active normal allocations.
  - numActiveHugeAllocations
```
long numActiveHugeAllocations()
```
    Return the number of currently active huge allocations.
  - numActiveBytes
```
long numActiveBytes()
```
    Return the number of active bytes that are currently allocated by the arena.

Interface PoolArenaMetric

Method Summary

Method Detail

numThreadCaches

numTinySubpages

numSmallSubpages

numChunkLists

tinySubpages

smallSubpages

chunkLists

numAllocations

numTinyAllocations

numSmallAllocations

numNormalAllocations

numHugeAllocations

numDeallocations

numTinyDeallocations

numSmallDeallocations

numNormalDeallocations

numHugeDeallocations

numActiveAllocations

numActiveTinyAllocations

numActiveSmallAllocations

numActiveNormalAllocations

numActiveHugeAllocations

numActiveBytes