All Superinterfaces:

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

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	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`	`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`	`numPinnedBytes()`	Return the number of bytes that are currently pinned to buffer instances, by 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.
`List<PoolSubpageMetric>`	`smallSubpages()`	Returns an unmodifiable `List` which holds `PoolSubpageMetric`s for small sub-pages.

Methods inherited from interface io.netty5.buffer.api.pool.SizeClassesMetric
normalizeSize, pageIdx2size, pageIdx2sizeCompute, pages2pageIdx, pages2pageIdxFloor, size2SizeIdx, sizeIdx2size, sizeIdx2sizeCompute

- Method Detail
  - numThreadCaches
```
int numThreadCaches()
```
    Returns the number of thread caches backed by this 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.
  - 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.
  - 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.
  - 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.
  - 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.
  - numPinnedBytes
```
long numPinnedBytes()
```
    Return the number of bytes that are currently pinned to buffer instances, by the arena.

Interface PoolArenaMetric

Method Summary

Methods inherited from interface io.netty5.buffer.api.pool.SizeClassesMetric

Method Detail

numThreadCaches

numSmallSubpages

numChunkLists

smallSubpages

chunkLists

numAllocations

numSmallAllocations

numNormalAllocations

numHugeAllocations

numDeallocations

numSmallDeallocations

numNormalDeallocations

numHugeDeallocations

numActiveAllocations

numActiveSmallAllocations

numActiveNormalAllocations

numActiveHugeAllocations

numActiveBytes

numPinnedBytes