Issue #2791 Move D2D Grids to direct memory.
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This commit is contained in:
Ben Steffensmeier
parent
64dc4fe0e7
commit
5bbf5fbfd6
4 changed files with 243 additions and 2 deletions
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@ -257,6 +257,7 @@ public class D2DGridResource extends GridResource<GridResourceData> implements
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throw new VizException(e);
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}
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}
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data = GridMemoryManager.getInstance().manage(data);
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return data;
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}
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@ -0,0 +1,239 @@
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/**
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* This software was developed and / or modified by Raytheon Company,
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* pursuant to Contract DG133W-05-CQ-1067 with the US Government.
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*
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* U.S. EXPORT CONTROLLED TECHNICAL DATA
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* This software product contains export-restricted data whose
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* export/transfer/disclosure is restricted by U.S. law. Dissemination
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* to non-U.S. persons whether in the United States or abroad requires
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* an export license or other authorization.
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*
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* Contractor Name: Raytheon Company
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* Contractor Address: 6825 Pine Street, Suite 340
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* Mail Stop B8
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* Omaha, NE 68106
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* 402.291.0100
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*
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* See the AWIPS II Master Rights File ("Master Rights File.pdf") for
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* further licensing information.
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**/
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package com.raytheon.viz.grid.rsc.general;
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import java.lang.management.ManagementFactory;
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import java.lang.ref.ReferenceQueue;
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import java.lang.ref.WeakReference;
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import java.nio.ByteBuffer;
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import java.nio.FloatBuffer;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.Set;
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import java.util.concurrent.atomic.AtomicLong;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import org.geotools.coverage.grid.GridEnvelope2D;
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import org.geotools.coverage.grid.GridGeometry2D;
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import com.raytheon.uf.common.geospatial.interpolation.data.DataUtilities;
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import com.raytheon.uf.common.geospatial.interpolation.data.FloatBufferWrapper;
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import com.raytheon.uf.common.status.IUFStatusHandler;
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import com.raytheon.uf.common.status.UFStatus;
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import com.raytheon.uf.common.status.UFStatus.Priority;
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/**
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* Manages grid memory. Parses command line options to determine how much direct
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* memory to use.
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*
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* <pre>
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*
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* SOFTWARE HISTORY
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*
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* Date Ticket# Engineer Description
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* ------------- -------- ----------- --------------------------
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* Feb 25, 2014 2791 bsteffen Initial creation
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*
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* </pre>
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*
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* @author bsteffen
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* @version 1.0
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*/
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public class GridMemoryManager {
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private static final transient IUFStatusHandler statusHandler = UFStatus
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.getHandler(GridMemoryManager.class);
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private static final String MAX_GRID_PROPERTY_NAME = "MaxDirectGridMemorySize";
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private static final String DATA_SIZE_PATTERN = "([0-9]+)([GgMmKk])";
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private static final String DATA_SIZE_ONLY_PATTERN = "^"
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+ DATA_SIZE_PATTERN + "$";
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private static final String MAX_DIRECT_PATTERN = "^-XX:MaxDirectMemorySize="
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+ DATA_SIZE_PATTERN + "$";
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/**
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* If only the Max Direct memory option is set then use this percentage of
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* the available direct memory.
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*/
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private static final double DIRECT_MEMORY_PERCENTAGE = 0.75f;
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private static GridMemoryManager instance;
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private final ReferenceQueue<ByteBuffer> refQueue = new ReferenceQueue<ByteBuffer>();
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private final Set<DirectBufferTrackingReference> livingRefs;
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private final AtomicLong remainingDirectMemory;
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public static synchronized GridMemoryManager getInstance() {
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if (instance == null) {
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instance = new GridMemoryManager();
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}
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return instance;
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}
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private GridMemoryManager() {
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livingRefs = Collections
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.synchronizedSet(new HashSet<DirectBufferTrackingReference>());
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long maxDirect = -1;
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long maxGrid = -1;
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Pattern p = Pattern.compile(MAX_DIRECT_PATTERN);
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for (String arg : ManagementFactory.getRuntimeMXBean()
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.getInputArguments()) {
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Matcher m = p.matcher(arg);
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if (m.matches()) {
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maxDirect = parseMemory(m);
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break;
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}
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}
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String maxGridString = System.getProperty(MAX_GRID_PROPERTY_NAME);
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if (maxGridString != null) {
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p = Pattern.compile(DATA_SIZE_ONLY_PATTERN);
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Matcher m = p.matcher(maxGridString);
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if (m.matches()) {
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maxGrid = parseMemory(m);
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} else {
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statusHandler.warn("Cannot parse MaxDirectGridMemorySize: "
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+ maxGridString);
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}
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}
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if ((maxGrid == -1 || maxGrid > maxDirect) && maxDirect != -1) {
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/* Use only some of direct memory, leave a little for anyone else. */
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maxGrid = (long) (maxDirect * DIRECT_MEMORY_PERCENTAGE);
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}
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this.remainingDirectMemory = new AtomicLong(maxGrid);
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statusHandler.debug("Using maximum of " + maxGrid
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+ " bytes of direct memory for grids.");
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}
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/**
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* If there is free direct memory then copy data into direct memory.
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* Otherwise just return data as is.
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*
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* @param data
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* @return
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*/
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public GeneralGridData manage(GeneralGridData data) {
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free();
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GridGeometry2D gridGeometry = data.getGridGeometry();
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GridEnvelope2D gridRange = gridGeometry.getGridRange2D();
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int numGridPoints = gridRange.width * gridRange.height;
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int sizeInBytes = numGridPoints * 4;
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if (data.isVector()) {
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sizeInBytes *= 2;
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}
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long r = remainingDirectMemory.get();
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boolean makeDirect = false;
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while (r > sizeInBytes && makeDirect == false) {
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if (remainingDirectMemory.compareAndSet(r, r - sizeInBytes)) {
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makeDirect = true;
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}
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r = remainingDirectMemory.get();
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}
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if (!makeDirect) {
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return data;
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}
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try {
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ByteBuffer directBuffer = ByteBuffer.allocateDirect(sizeInBytes);
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livingRefs.add(new DirectBufferTrackingReference(directBuffer,
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refQueue));
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FloatBuffer dataBuffer = directBuffer.asFloatBuffer();
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if (data.isVector()) {
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dataBuffer.position(0);
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dataBuffer.limit(numGridPoints);
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FloatBufferWrapper uWrapper = new FloatBufferWrapper(
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dataBuffer.slice(), gridGeometry);
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dataBuffer.position(numGridPoints);
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dataBuffer.limit(numGridPoints * 2);
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FloatBufferWrapper vWrapper = new FloatBufferWrapper(
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dataBuffer.slice(), gridGeometry);
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DataUtilities.copy(data.getUComponent(), uWrapper,
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gridRange.width, gridRange.height);
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DataUtilities.copy(data.getVComponent(), vWrapper,
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gridRange.width, gridRange.height);
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data = GeneralGridData.createVectorDataUV(gridGeometry,
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uWrapper, vWrapper, data.getDataUnit());
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} else {
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FloatBufferWrapper wrapper = new FloatBufferWrapper(dataBuffer,
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gridGeometry);
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DataUtilities.copy(data.getScalarData(), wrapper,
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gridRange.width, gridRange.height);
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data = GeneralGridData.createScalarData(gridGeometry, wrapper,
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data.getDataUnit());
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}
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} catch (Throwable e) {
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statusHandler.handle(Priority.DEBUG,
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"Error using direct memory, falling back to heap.", e);
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remainingDirectMemory.addAndGet(sizeInBytes);
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}
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return data;
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}
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private void free() {
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DirectBufferTrackingReference ref = (DirectBufferTrackingReference) refQueue
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.poll();
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while (ref != null) {
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remainingDirectMemory.addAndGet(ref.getSize());
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livingRefs.remove(ref);
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ref = (DirectBufferTrackingReference) refQueue.poll();
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}
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}
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private static long parseMemory(Matcher m) {
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long size = Integer.parseInt(m.group(1));
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char unit = m.group(2).charAt(0);
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switch (unit) {
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case 'G':
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case 'g':
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size *= 1024;
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case 'M':
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case 'm':
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size *= 1024;
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case 'K':
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case 'k':
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size *= 1024;
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}
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return size;
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}
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private static final class DirectBufferTrackingReference extends
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WeakReference<ByteBuffer> {
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private final int size;
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public DirectBufferTrackingReference(ByteBuffer referent,
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ReferenceQueue<ByteBuffer> q) {
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super(referent, q);
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this.size = referent.capacity();
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}
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public int getSize() {
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return size;
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}
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}
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}
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@ -33,7 +33,7 @@
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-Dthrift.stream.maxsize=200
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-Djava.util.Arrays.useLegacyMergeSort=true
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-Dviz.memory.warn.threshold=98</vmArgs>
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<vmArgsLin>-Xmx1280M</vmArgsLin>
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<vmArgsLin>-Xmx1280M -XX:MaxDirectMemorySize=2G</vmArgsLin>
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<vmArgsWin>-Dfile.encoding=UTF-8 -Xmx768M</vmArgsWin>
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</launcherArgs>
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@ -27,7 +27,8 @@
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-Dlogback.configurationFile=logback-viz-core-developer.xml
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-Dlogback.statusListenerClass=com.raytheon.uf.common.status.logback.UFLogbackInternalStatusListener
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-Dthrift.stream.maxsize=200
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-Dviz.memory.warn.threshold=99</vmArgs>
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-Dviz.memory.warn.threshold=99
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-XX:MaxDirectMemorySize=1G</vmArgs>
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<vmArgsWin>-Dfile.encoding=UTF-8</vmArgsWin>
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</launcherArgs>
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