Java Code Examples for io.prestosql.spi.block.Block#retainedBytesForEachPart()
The following examples show how to use
io.prestosql.spi.block.Block#retainedBytesForEachPart() .
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Example 1
Source File: PageProcessor.java From presto with Apache License 2.0 | 5 votes |
private void updateRetainedSize() { // increment the size only when it is the first reference retainedSizeInBytes = Page.INSTANCE_SIZE + SizeOf.sizeOfObjectArray(page.getChannelCount()); ReferenceCountMap referenceCountMap = new ReferenceCountMap(); for (int channel = 0; channel < page.getChannelCount(); channel++) { Block block = page.getBlock(channel); // TODO: block might be partially loaded if (block.isLoaded()) { block.retainedBytesForEachPart((object, size) -> { if (referenceCountMap.incrementAndGet(object) == 1) { retainedSizeInBytes += size; } }); } } for (Block previouslyComputedResult : previouslyComputedResults) { if (previouslyComputedResult != null) { previouslyComputedResult.retainedBytesForEachPart((object, size) -> { if (referenceCountMap.incrementAndGet(object) == 1) { retainedSizeInBytes += size; } }); } } memoryContext.setBytes(retainedSizeInBytes); }
Example 2
Source File: BlockBigArray.java From presto with Apache License 2.0 | 5 votes |
/** * Sets the element of this big array at specified index. * * @param index a position in this big array. */ public void set(long index, Block value) { Block currentValue = array.get(index); if (currentValue != null) { currentValue.retainedBytesForEachPart((object, size) -> { if (currentValue == object) { // track instance size separately as the reference count for an instance is always 1 sizeOfBlocks -= size; return; } if (trackedObjects.decrementAndGet(object) == 0) { // decrement the size only when it is the last reference sizeOfBlocks -= size; } }); } if (value != null) { value.retainedBytesForEachPart((object, size) -> { if (value == object) { // track instance size separately as the reference count for an instance is always 1 sizeOfBlocks += size; return; } if (trackedObjects.incrementAndGet(object) == 1) { // increment the size only when it is the first reference sizeOfBlocks += size; } }); } array.set(index, value); }