Package io.netty.buffer

Class AdaptivePoolingAllocator.AllocationStatistics

java.lang.Object

io.netty.buffer.AdaptivePoolingAllocator.AllocationStatistics

Direct Known Subclasses:

AdaptivePoolingAllocator.Magazine

Enclosing class:

AdaptivePoolingAllocator

private static class AdaptivePoolingAllocator.AllocationStatistics
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
private int	datumCount
private int	datumTarget
private short[]	histo
private static int	HISTO_BUCKET_COUNT
private static int	HISTO_MAX_BUCKET_MASK
private static int	HISTO_MAX_BUCKET_SHIFT
private static int	HISTO_MIN_BUCKET_SHIFT
private int	histoIndex
private short[][]	histos
private static int	INIT_DATUM_TARGET
protected int	localPrefChunkSize
private static int	MAX_DATUM_TARGET
private static int	MIN_DATUM_TARGET
protected AdaptivePoolingAllocator	parent
private boolean	shareable
protected int	sharedPrefChunkSize
private static int	SIZE_MAX_MASK
private int[]	sums

Constructor Summary

Constructors

Modifier	Constructor	Description
private	AllocationStatistics(AdaptivePoolingAllocator parent, boolean shareable)

Method Summary

Modifier and Type	Method	Description
protected int	preferredChunkSize()	Get the preferred chunk size, based on statistics from the recorded allocation sizes.
protected void	recordAllocationSize(int bucket)
private void	rotateHistograms()
(package private) static int	sizeBucket(int size)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MIN_DATUM_TARGET

private static final int MIN_DATUM_TARGET

See Also:

Constant Field Values

MAX_DATUM_TARGET

private static final int MAX_DATUM_TARGET

See Also:

Constant Field Values

INIT_DATUM_TARGET

private static final int INIT_DATUM_TARGET

See Also:

Constant Field Values

HISTO_MIN_BUCKET_SHIFT

private static final int HISTO_MIN_BUCKET_SHIFT

See Also:

Constant Field Values

HISTO_MAX_BUCKET_SHIFT

private static final int HISTO_MAX_BUCKET_SHIFT

See Also:

Constant Field Values

HISTO_BUCKET_COUNT

private static final int HISTO_BUCKET_COUNT

See Also:

Constant Field Values

HISTO_MAX_BUCKET_MASK

private static final int HISTO_MAX_BUCKET_MASK

See Also:

Constant Field Values

SIZE_MAX_MASK

private static final int SIZE_MAX_MASK

See Also:

Constant Field Values

parent

protected final AdaptivePoolingAllocator parent

shareable

private final boolean shareable

histos

private final short[][] histos

histo

private short[] histo

sums

private final int[] sums

histoIndex

private int histoIndex

datumCount

private int datumCount

datumTarget

private int datumTarget

sharedPrefChunkSize

protected volatile int sharedPrefChunkSize

localPrefChunkSize

protected volatile int localPrefChunkSize

Constructor Detail

AllocationStatistics

private AllocationStatistics(AdaptivePoolingAllocator parent,
                             boolean shareable)

Method Detail

recordAllocationSize

protected void recordAllocationSize(int bucket)

sizeBucket

static int sizeBucket(int size)

rotateHistograms

private void rotateHistograms()

preferredChunkSize

protected int preferredChunkSize()

Get the preferred chunk size, based on statistics from the recorded allocation sizes.

This method must be thread-safe.

Returns:

The currently preferred chunk allocation size.