Example usage for java.lang Runtime totalMemory

Introduction

In this page you can find the example usage for java.lang Runtime totalMemory.

Prototype

public native long totalMemory();

Source Link

Document

Returns the total amount of memory in the Java virtual machine.

Usage

From source file:com.liferay.portal.events.GarbageCollectorAction.java

public void run(HttpSession ses) throws ActionException {

    try {//from   w  w  w  . j av a 2s .c  o m
        Runtime runtime = Runtime.getRuntime();

        NumberFormat nf = NumberFormat.getInstance();

        _log.debug("Before GC: " + nf.format(runtime.freeMemory()) + " free, "
                + nf.format(runtime.totalMemory()) + " total, and " + nf.format(runtime.maxMemory()) + " max");

        _log.debug("Running garbage collector");

        System.gc();

        _log.debug("After GC: " + nf.format(runtime.freeMemory()) + " free, " + nf.format(runtime.totalMemory())
                + " total, and " + nf.format(runtime.maxMemory()) + " max");
    } catch (Exception e) {
        throw new ActionException(e);
    }
}

---

From source file:models.monitor.MonitorProvider.java

public PerformUsage getJVMMemoryUsage() {
    int mb = 1024 * 1024;
    Runtime rt = Runtime.getRuntime();
    PerformUsage usage = new PerformUsage();
    usage.totalMemory = (double) rt.totalMemory() / mb;
    usage.freeMemory = (double) rt.freeMemory() / mb;
    usage.usedMemory = (double) rt.totalMemory() / mb - rt.freeMemory() / mb;
    usage.maxMemory = (double) rt.maxMemory() / mb;
    usage.memoryUsagePercent = usage.usedMemory / usage.totalMemory * 100.0;

    //            new BigDecimal().setScale(2) .divide(new BigDecimal(usage.totalMemory).setScale(2), RoundingMode.DOWN)
    //                                                  .setScale(2)
    //                                                  .multiply(new BigDecimal(100)).intValue();

    // update current
    currentJvmPerformUsage = usage;/*from   w  ww .j a  v a 2  s  .  co  m*/
    return usage;
}

---

From source file:edu.umn.cs.spatialHadoop.visualization.MultilevelPlot.java

public static Job plot(Path[] inPaths, Path outPath, Class<? extends Plotter> plotterClass,
        OperationsParams params) throws IOException, InterruptedException, ClassNotFoundException {
    if (params.getBoolean("showmem", false)) {
        // Run a thread that keeps track of used memory
        Thread memThread = new Thread(new Thread() {
            @Override/*w ww.  j a v a  2  s.c  o m*/
            public void run() {
                Runtime runtime = Runtime.getRuntime();
                while (true) {
                    try {
                        Thread.sleep(60000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    runtime.gc();
                    LOG.info("Memory usage: "
                            + ((runtime.totalMemory() - runtime.freeMemory()) / (1024 * 1024 * 1024)) + "GB.");
                }
            }
        });
        memThread.setDaemon(true);
        memThread.start();
    }

    // Decide how to run it based on range of levels to generate
    String[] strLevels = params.get("levels", "7").split("\\.\\.");
    int minLevel, maxLevel;
    if (strLevels.length == 1) {
        minLevel = 0;
        maxLevel = Integer.parseInt(strLevels[0]) - 1;
    } else {
        minLevel = Integer.parseInt(strLevels[0]);
        maxLevel = Integer.parseInt(strLevels[1]);
    }
    // Create an output directory that will hold the output of the two jobs
    FileSystem outFS = outPath.getFileSystem(params);
    outFS.mkdirs(outPath);

    Job runningJob = null;
    if (OperationsParams.isLocal(params, inPaths)) {
        // Plot local
        plotLocal(inPaths, outPath, plotterClass, params);
    } else {
        int maxLevelWithFlatPartitioning = params.getInt(FlatPartitioningLevelThreshold, 4);
        if (minLevel <= maxLevelWithFlatPartitioning) {
            OperationsParams flatPartitioning = new OperationsParams(params);
            flatPartitioning.set("levels", minLevel + ".." + Math.min(maxLevelWithFlatPartitioning, maxLevel));
            flatPartitioning.set("partition", "flat");
            LOG.info("Using flat partitioning in levels " + flatPartitioning.get("levels"));
            runningJob = plotMapReduce(inPaths, new Path(outPath, "flat"), plotterClass, flatPartitioning);
        }
        if (maxLevel > maxLevelWithFlatPartitioning) {
            OperationsParams pyramidPartitioning = new OperationsParams(params);
            pyramidPartitioning.set("levels",
                    Math.max(minLevel, maxLevelWithFlatPartitioning + 1) + ".." + maxLevel);
            pyramidPartitioning.set("partition", "pyramid");
            LOG.info("Using pyramid partitioning in levels " + pyramidPartitioning.get("levels"));
            runningJob = plotMapReduce(inPaths, new Path(outPath, "pyramid"), plotterClass,
                    pyramidPartitioning);
        }
        // Write a new HTML file that displays both parts of the pyramid
        // Add an HTML file that visualizes the result using Google Maps
        LineReader templateFileReader = new LineReader(
                MultilevelPlot.class.getResourceAsStream("/zoom_view.html"));
        PrintStream htmlOut = new PrintStream(outFS.create(new Path(outPath, "index.html")));
        Text line = new Text();
        while (templateFileReader.readLine(line) > 0) {
            String lineStr = line.toString();
            lineStr = lineStr.replace("#{TILE_WIDTH}", Integer.toString(params.getInt("tilewidth", 256)));
            lineStr = lineStr.replace("#{TILE_HEIGHT}", Integer.toString(params.getInt("tileheight", 256)));
            lineStr = lineStr.replace("#{MAX_ZOOM}", Integer.toString(maxLevel));
            lineStr = lineStr.replace("#{MIN_ZOOM}", Integer.toString(minLevel));
            lineStr = lineStr.replace("#{TILE_URL}", "(zoom <= " + maxLevelWithFlatPartitioning
                    + "? 'flat' : 'pyramid')+('/tile-' + zoom + '-' + coord.x + '-' + coord.y + '.png')");

            htmlOut.println(lineStr);
        }
        templateFileReader.close();
        htmlOut.close();
    }

    return runningJob;
}

---

From source file:com.amazonaws.metrics.internal.cloudwatch.MachineMetricFactory.java

private void addMemoryMetrics(List<MetricDatum> targetList, Set<MachineMetric> customSet) {
    Runtime rt = Runtime.getRuntime();
    long totalMem = rt.totalMemory();
    long freeMem = rt.freeMemory();
    long usedMem = totalMem - freeMem;
    long spareMem = rt.maxMemory() - usedMem;
    List<Long> values = Arrays.asList(totalMem, freeMem, usedMem, spareMem);
    MetricValues metricValues = memoryMetricValues(customSet, values);
    addMetrics(targetList, metricValues, StandardUnit.Bytes);
}

---

From source file:com.github.lpezet.antiope.metrics.aws.MachineMetricFactory.java

private void addMemoryMetrics(List<MetricDatum> pTargetList, Set<MachineMetric> pCustomSet) {
    Runtime rt = Runtime.getRuntime();
    long oTotalMem = rt.totalMemory();
    long oFreeMem = rt.freeMemory();
    long oUsedMem = oTotalMem - oFreeMem;
    long oSpareMem = rt.maxMemory() - oUsedMem;
    List<Long> oValues = Arrays.asList(oTotalMem, oFreeMem, oUsedMem, oSpareMem);
    MetricValues oMetricValues = memoryMetricValues(pCustomSet, oValues);
    addMetrics(pTargetList, oMetricValues, StandardUnit.Bytes);
}

---

From source file:it.damore.tomee.envmonitor.services.EnvMonitorService.java

@GET
@Path("monitor")
@Produces({ MediaType.APPLICATION_JSON })
public EnvironmentConfig getEnvConfig() throws IllegalAccessException, InvocationTargetException {
    logger.info("received a request...");

    int mb = 1024 * 1024;
    //Getting the runtime reference from system
    Runtime runtime = Runtime.getRuntime();

    EnvironmentConfig b = new EnvironmentConfig();
    b.setMaxMemory(runtime.maxMemory() / mb);
    b.setFreeMemory(runtime.freeMemory() / mb);
    b.setTotalMemory(runtime.totalMemory() / mb);
    b.setSystemProperties(System.getProperties());

    RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();
    LocalRuntimeMXBean myRuntimeMXBean = new LocalRuntimeMXBean();
    BeanUtils.copyProperties(myRuntimeMXBean, runtimeMXBean);
    b.setRuntimeMXBean(myRuntimeMXBean);

    MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
    LocalMemoryMXBean myMemoryMXBean = new LocalMemoryMXBean();
    myMemoryMXBean.setHeapMemoryUsage(memoryMXBean.getHeapMemoryUsage());
    myMemoryMXBean.setNonHeapMemoryUsage(memoryMXBean.getNonHeapMemoryUsage());
    myMemoryMXBean.setObjectPendingFinalizationCount(memoryMXBean.getObjectPendingFinalizationCount());
    b.setMemoryMXBean(myMemoryMXBean);//from w w  w. java  2  s  .  co  m

    OperatingSystemMXBean operatingSystemMXBean = ManagementFactory.getOperatingSystemMXBean();
    LocalOperatingSystemMXBean myOperatingSystemMXBean = new LocalOperatingSystemMXBean();
    BeanUtils.copyProperties(myOperatingSystemMXBean, operatingSystemMXBean);
    b.setOperatingSystemMXBean(myOperatingSystemMXBean);

    return b;
}

---

From source file:org.alfresco.repo.content.transform.TikaPoweredContentTransformer.java

private String calculateMemoryAndTimeUsage(ContentReader reader, long startTime) {
    long endTime = System.currentTimeMillis();
    Runtime runtime = Runtime.getRuntime();
    long totalMemory = runtime.totalMemory();
    return String.format(USAGE_PATTERN, this.getClass().getName(), reader,
            (totalMemory - runtime.freeMemory()) / MEGABYTES, totalMemory / MEGABYTES,
            runtime.maxMemory() / MEGABYTES, (endTime - startTime));
}

---

From source file:ffx.HeadlessMain.java

/**
 * Complete initializations.//from   w w w. ja  v a2  s.  c  om
 *
 * @param commandLineFile a {@link java.io.File} object.
 * @param argList a {@link java.util.List} object.
 * @param logHandler a {@link ffx.ui.LogHandler} object.
 */
public HeadlessMain(File commandLineFile, List<String> argList, LogHandler logHandler) {
    // Start a timer.
    stopWatch.start();

    // Construct the MainPanel, set it's LogHandler, and initialize then it.
    mainPanel = new MainPanel();
    logHandler.setMainPanel(mainPanel);
    mainPanel.initialize();

    // Open the supplied script file.
    if (commandLineFile != null) {
        if (!commandLineFile.exists()) {
            /**
             * See if the commandLineFile is an embedded script.
             */
            String name = commandLineFile.getName();
            name = name.replace('.', '/');
            String pathName = "ffx/scripts/" + name;
            ClassLoader loader = getClass().getClassLoader();
            URL embeddedScript = loader.getResource(pathName + ".ffx");
            if (embeddedScript == null) {
                embeddedScript = loader.getResource(pathName + ".groovy");
            }
            if (embeddedScript != null) {
                try {
                    commandLineFile = new File(FFXClassLoader.copyInputStreamToTmpFile(
                            embeddedScript.openStream(), commandLineFile.getName(), ".ffx"));
                } catch (Exception e) {
                    logger.warning("Exception extracting embedded script " + embeddedScript.toString() + "\n"
                            + e.toString());
                }
            }
        }
        if (commandLineFile.exists()) {
            mainPanel.getModelingShell().setArgList(argList);
            mainPanel.open(commandLineFile, null);
        } else {
            logger.warning(format("%s was not found.", commandLineFile.toString()));
        }
    }

    /**
     * Print start-up information.
     */
    if (logger.isLoggable(Level.FINE)) {
        StringBuilder sb = new StringBuilder();
        sb.append(format("\n Start-up Time (msec): %s.", stopWatch.getTime()));
        Runtime runtime = Runtime.getRuntime();
        runtime.runFinalization();
        runtime.gc();
        long occupiedMemory = runtime.totalMemory() - runtime.freeMemory();
        long KB = 1024;
        sb.append(format("\n In-Use Memory   (Kb): %d", occupiedMemory / KB));
        sb.append(format("\n Free Memory     (Kb): %d", runtime.freeMemory() / KB));
        sb.append(format("\n Total Memory    (Kb): %d", runtime.totalMemory() / KB));
        logger.fine(sb.toString());
    }
}

---

From source file:org.apache.shindig.social.opensocial.util.JsonConverterPerformancePerf.java

public void testToJsonLibOnInheritedClassInput() throws Exception {
    SpecialPerson[] spa = new SpecialPerson[TEST_SIZE];
    SpecialPerson[] sparesult = new SpecialPerson[TEST_SIZE];
    Runtime r = Runtime.getRuntime();
    r.gc();//from   ww w . ja  va 2s.  c o m
    long personStart = r.totalMemory() - r.freeMemory();
    for (int i = 0; i < TEST_SIZE; i++) {
        spa[i] = new SpecialPerson(String.valueOf(i), "robot", "nonsense");
    }
    long personEnd = r.totalMemory() - r.freeMemory();

    String[] serializeOutput = new String[TEST_SIZE];
    r.gc();
    for (int i = 0; i < TEST_SIZE; i++) {

        serializeOutput[i] = beanJsonLibConverter.convertToString(spa[i]);
    }

    r.gc();
    long memstart = r.totalMemory() - r.freeMemory();
    long startInput = System.currentTimeMillis();
    for (int i = 0; i < TEST_SIZE; i++) {
        sparesult[i] = beanJsonLibConverter.convertToObject(serializeOutput[i], SpecialPerson.class);
    }
    long endInput = System.currentTimeMillis();
    long memend = r.totalMemory() - r.freeMemory();

    log.info("SF JSON Lib Input " + average(startInput, endInput, TEST_SIZE) + " ms/conversion, "
            + (average(memstart, memend, TEST_SIZE) - average(personStart, personEnd, TEST_SIZE))
            + " heap bytes/conversion, person object consumed on average "
            + average(personStart, personEnd, TEST_SIZE));
}

---

From source file:org.apache.shindig.social.opensocial.util.JsonConverterPerformancePerf.java

public void XtestToJsonOnInheritedClassInput() throws Exception {
    SpecialPerson[] spa = new SpecialPerson[TEST_SIZE];
    SpecialPerson[] sparesult = new SpecialPerson[TEST_SIZE];
    Runtime r = Runtime.getRuntime();
    r.gc();//ww w  .j  a va2  s  .  c  o m
    long personStart = r.totalMemory() - r.freeMemory();
    for (int i = 0; i < TEST_SIZE; i++) {
        spa[i] = new SpecialPerson(String.valueOf(i), "robot", "nonsense");
    }
    long personEnd = r.totalMemory() - r.freeMemory();

    String[] serializeOutput = new String[TEST_SIZE];
    r.gc();
    for (int i = 0; i < TEST_SIZE; i++) {

        serializeOutput[i] = beanJsonConverter.convertToString(spa[i]);
    }

    r.gc();
    long memstart = r.totalMemory() - r.freeMemory();
    long startInput = System.currentTimeMillis();

    for (int i = 0; i < TEST_SIZE; i++) {
        sparesult[i] = beanJsonConverter.convertToObject(serializeOutput[i], SpecialPerson.class);
    }
    long endInput = System.currentTimeMillis();
    long memend = r.totalMemory() - r.freeMemory();

    log.info("SF JSON Lib Input " + average(startInput, endInput, TEST_SIZE) + " ms/conversion, "
            + (average(memstart, memend, TEST_SIZE) - average(personStart, personEnd, TEST_SIZE))
            + " heap bytes/conversion, person object consumed on average "
            + average(personStart, personEnd, TEST_SIZE));
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• »