All Superinterfaces:

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

Method Summary

All Methods Instance Methods Abstract Methods Default Methods Deprecated Methods
Modifier and Type	Method	Description
`java.util.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.
`default long`	`numActiveChunks()`	Return the number of currently active chunks, or -1 if not defined
`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()`	Deprecated. Tiny allocations have been merged into small allocations.
`long`	`numAllocations()`	Return the number of allocations done via the arena.
`default long`	`numChunkAllocations()`	Return the number of chunks allocations done via the arena, or -1 if not defined.
`default long`	`numChunkDeallocations()`	Return the number of chunk deallocations done via the arena, or -1 if nor defined.
`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()`	Deprecated. Tiny allocations have been merged into small allocations.
`long`	`numTinyDeallocations()`	Deprecated. Tiny deallocations have been merged into small deallocations.
`int`	`numTinySubpages()`	Deprecated. Tiny sub-pages have been merged into small sub-pages.
`java.util.List<PoolSubpageMetric>`	`smallSubpages()`	Returns an unmodifiable `List` which holds `PoolSubpageMetric`s for small sub-pages.
`java.util.List<PoolSubpageMetric>`	`tinySubpages()`	Deprecated. Tiny sub-pages have been merged into small sub-pages.

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

- Method Detail
  - numThreadCaches
```
int numThreadCaches()
```
    Returns the number of thread caches backed by this arena.
  - numTinySubpages
```
@Deprecated
int numTinySubpages()
```
    Deprecated.
    Tiny sub-pages have been merged into small sub-pages.
    
    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
```
@Deprecated
java.util.List<PoolSubpageMetric> tinySubpages()
```
    Deprecated.
    Tiny sub-pages have been merged into small sub-pages.
    
    Returns an unmodifiable List which holds PoolSubpageMetrics for tiny sub-pages.
  - smallSubpages
```
java.util.List<PoolSubpageMetric> smallSubpages()
```
    Returns an unmodifiable List which holds PoolSubpageMetrics for small sub-pages.
  - chunkLists
```
java.util.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
```
@Deprecated
long numTinyAllocations()
```
    Deprecated.
    Tiny allocations have been merged into small allocations.
    
    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.
  - numChunkAllocations
```
default long numChunkAllocations()
```
    Return the number of chunks allocations done via the arena, or -1 if not defined.
  - numDeallocations
```
long numDeallocations()
```
    Return the number of deallocations done via the arena. This includes all sizes.
  - numTinyDeallocations
```
@Deprecated
long numTinyDeallocations()
```
    Deprecated.
    Tiny deallocations have been merged into small deallocations.
    
    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.
  - numChunkDeallocations
```
default long numChunkDeallocations()
```
    Return the number of chunk deallocations done via the arena, or -1 if nor defined.
  - numActiveAllocations
```
long numActiveAllocations()
```
    Return the number of currently active allocations.
  - numActiveTinyAllocations
```
@Deprecated
long numActiveTinyAllocations()
```
    Deprecated.
    Tiny allocations have been merged into small allocations.
    
    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.
  - numActiveChunks
```
default long numActiveChunks()
```
    Return the number of currently active chunks, or -1 if not defined
  - numActiveBytes
```
long numActiveBytes()
```
    Return the number of active bytes that are currently allocated by the arena.

Interface PoolArenaMetric

Method Summary

Methods inherited from interface io.netty.buffer.SizeClassesMetric

Method Detail

numThreadCaches

numTinySubpages

numSmallSubpages

numChunkLists

tinySubpages

smallSubpages

chunkLists

numAllocations

numTinyAllocations

numSmallAllocations

numNormalAllocations

numHugeAllocations

numChunkAllocations

numDeallocations

numTinyDeallocations

numSmallDeallocations

numNormalDeallocations

numHugeDeallocations

numChunkDeallocations

numActiveAllocations

numActiveTinyAllocations

numActiveSmallAllocations

numActiveNormalAllocations

numActiveHugeAllocations

numActiveChunks

numActiveBytes