Examples of eu.stratosphere.nephele.services.memorymanager.DirectMemorySegment

Package eu.stratosphere.nephele.services.memorymanager

Examples of eu.stratosphere.nephele.services.memorymanager.DirectMemorySegment

eu.stratosphere.nephele.services.memorymanager.DirectMemorySegment
This class represents a piece of memory allocated from the memory manager. The segment is backed by a byte array and features random put and get methods for the basic types that are stored in a byte-wise fashion in the memory.

    CheckedMemorySegment checkedSegment = new CheckedMemorySegment(segmentArray);
    long elapsedChecked = timePutByteArrayChecked(checkedSegment, sourceArray, numValues, rounds);
    checkedSegment = null;
    
    Arrays.fill(segmentArray, (byte) 0);
    DirectMemorySegment directSegment = new DirectMemorySegment(segmentArray);
    long elapsedDirect = timePutByteArrayDirect(directSegment, sourceArray, numValues, rounds);
    directSegment = null;
    
    Arrays.fill(segmentArray, (byte) 0);
    UnsafeMemorySegment unsafeSegment = new UnsafeMemorySegment(segmentArray);

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    CheckedMemorySegment checkedSegment = new CheckedMemorySegment(segmentArray);
    long elapsedChecked = timeGetByteArrayChecked(checkedSegment, targetArray, numValues, rounds);
    checkedSegment = null;
    
    Arrays.fill(segmentArray, (byte) 0);
    DirectMemorySegment directSegment = new DirectMemorySegment(segmentArray);
    long elapsedDirect = timeGetByteArrayDirect(directSegment, targetArray, numValues, rounds);
    directSegment = null;
    
    Arrays.fill(segmentArray, (byte) 0);
    UnsafeMemorySegment unsafeSegment = new UnsafeMemorySegment(segmentArray);

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Related Classes of eu.stratosphere.nephele.services.memorymanager.DirectMemorySegment

eu.stratosphere.nephele.memory.MemorySegmentSpeedBenchmark

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