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:edu.ku.brc.ui.FeedBackSender.java

/**
 * Creates an array of POST method parameters to send with the version checking / usage tracking connection.
 * //from  ww  w  .  ja  va 2  s  .c o m
 * @param item the item to fill
 * @return an array of POST parameters
 */
protected NameValuePair[] createPostParameters(final FeedBackSenderItem item) {
    Vector<NameValuePair> postParams = new Vector<NameValuePair>();
    try {
        postParams.add(new NameValuePair("bug", item.getBug())); //$NON-NLS-1$
        postParams.add(new NameValuePair("class_name", item.getClassName())); //$NON-NLS-1$
        postParams.add(new NameValuePair("comments", item.getComments())); //$NON-NLS-1$
        postParams.add(new NameValuePair("stack_trace", item.getStackTrace())); //$NON-NLS-1$
        postParams.add(new NameValuePair("task_name", item.getTaskName())); //$NON-NLS-1$
        postParams.add(new NameValuePair("title", item.getTitle())); //$NON-NLS-1$

        // get the install ID
        String installID = UsageTracker.getInstallId();
        postParams.add(new NameValuePair("id", installID)); //$NON-NLS-1$

        Runtime runtime = Runtime.getRuntime();
        Long usedMemory = runtime.maxMemory() - (runtime.totalMemory() + runtime.freeMemory());
        Long maxMemory = runtime.maxMemory();

        // get the OS name and version
        postParams.add(new NameValuePair("os_name", System.getProperty("os.name"))); //$NON-NLS-1$ //$NON-NLS-2$
        postParams.add(new NameValuePair("os_version", System.getProperty("os.version"))); //$NON-NLS-1$ //$NON-NLS-2$
        postParams.add(new NameValuePair("java_version", System.getProperty("java.version"))); //$NON-NLS-1$ //$NON-NLS-2$
        postParams.add(new NameValuePair("java_vendor", System.getProperty("java.vendor"))); //$NON-NLS-1$ //$NON-NLS-2$
        postParams.add(new NameValuePair("max_memory", maxMemory.toString())); //$NON-NLS-1$
        postParams.add(new NameValuePair("used_memory", usedMemory.toString())); //$NON-NLS-1$

        Properties props = item.getProps();
        if (props != null) {
            for (Object key : props.keySet()) {
                postParams.add(new NameValuePair(key.toString(), props.getProperty(key.toString()))); //$NON-NLS-1$
            }
        }

        //if (!UIRegistry.isRelease()) // For Testing Only
        {
            postParams.add(new NameValuePair("user_name", System.getProperty("user.name"))); //$NON-NLS-1$
            try {
                postParams.add(new NameValuePair("ip", InetAddress.getLocalHost().getHostAddress())); //$NON-NLS-1$
            } catch (UnknownHostException e) {
            }
        }

        String resAppVersion = UIRegistry.getAppVersion();
        if (StringUtils.isEmpty(resAppVersion)) {
            resAppVersion = "Unknown";
        }
        postParams.add(new NameValuePair("app_version", resAppVersion)); //$NON-NLS-1$

        Vector<NameValuePair> extraStats = collectionSecondaryInfo(item);
        if (extraStats != null) {
            postParams.addAll(extraStats);
        }

        // create an array from the params
        NameValuePair[] paramArray = new NameValuePair[postParams.size()];
        for (int i = 0; i < paramArray.length; ++i) {
            paramArray[i] = postParams.get(i);
        }

        return paramArray;

    } catch (Exception ex) {
        ex.printStackTrace();
    }
    return null;
}

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From source file:org.wso2.carbon.mediation.statistics.monitor.EsbStatisticsConsumer.java

private void updateMemoryView(MemoryStatView view) {
    Runtime runtime = Runtime.getRuntime();

    view.setTotalMemory(runtime.totalMemory() / MEGA);
    view.setFreeMemory(runtime.freeMemory() / MEGA);
    view.setUsedMemory((runtime.totalMemory() - runtime.freeMemory()) / MEGA);
    view.setMaxMemory(runtime.maxMemory() / MEGA);
}

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From source file:com.viettel.logistic.wms.business.KpiLogBusiness.java

private void checkMemory(String functionName, String transactionCode) {

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

    System.out.println("##### Heap utilization statistics [MB] #####");
    System.out.println("##### Transaction code = " + transactionCode + " #####");

    //Print used memory
    System.out.println(functionName + " Used Memory:" + (runtime.totalMemory() - runtime.freeMemory()) / mb);

    //Print free memory
    System.out.println(functionName + " Free Memory:" + runtime.freeMemory() / mb);

    //Print total available memory
    System.out.println(functionName + " Total Memory:" + runtime.totalMemory() / mb);

    //Print Maximum available memory
    System.out.println(functionName + " Max Memory:" + runtime.maxMemory() / mb);

}

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From source file:ffx.ui.UIDataConverter.java

/**
 * Rather verbose output for timed File Operations makes it easy to grep log
 * files for specific information.//from ww w .jav  a 2s.  c om
 */
private void startTimer() {
    Runtime runtime = Runtime.getRuntime();
    if (gc) {
        runtime.runFinalization();
        runtime.gc();
    }
    occupiedMemory = runtime.totalMemory() - runtime.freeMemory();
    time -= System.nanoTime();
}

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From source file:xc.mst.utils.TimingStats.java

private void outputMemory(boolean runGC) {
    if (runGC) {/*from w  w  w  .j ava2s .  c om*/
        System.gc();
    }
    Runtime r = Runtime.getRuntime();
    long maxMem = r.maxMemory() / 1048576;
    long totalMem = r.totalMemory() / 1048576;

    long freeBytes = r.freeMemory();
    long freeMem = freeBytes / 1048576;

    long usedMem = totalMem - freeMem;
    long memIncrease = usedMem - memUsedAtLastReset;
    memUsedAtLastReset = usedMem;

    LOG.debug("");
    LOG.debug("Free  memory: " + StringUtils.leftPad(freeMem + "", 7) + " MB.");
    LOG.debug("Used  memory: " + StringUtils.leftPad(usedMem + "", 7) + " MB.");
    LOG.debug("Increased by: " + StringUtils.leftPad(memIncrease + "", 7) + " MB.");
    LOG.debug("Total memory: " + StringUtils.leftPad(totalMem + "", 7) + " MB.");
    LOG.debug("Max'm memory: " + StringUtils.leftPad(maxMem + "", 7) + " MB.");

    //double percentageUsed = ((double) usedMem) / maxMem;
    //System.out.println("percentageUsed = " + percentageUsed);
    //MemoryWarningSystem.setPercentageUsageThreshold(0.8);  // 80%
}

---

From source file:ffx.ui.UIDataConverter.java

private void stopTimer(FFXSystem ffxSystem) {
    time += System.nanoTime();/*ww  w. j ava 2s . c  o m*/
    logger.log(Level.INFO, " Opened {0} with {1} atoms.\n File Op Time  (msec): {2}",
            new Object[] { ffxSystem.toString(), ffxSystem.getAtomList().size(), time * 1.0e-9 });
    Runtime runtime = Runtime.getRuntime();
    if (gc) {
        runtime.runFinalization();
        runtime.gc();
        long moleculeMemory = (runtime.totalMemory() - runtime.freeMemory()) - occupiedMemory;
        logger.log(Level.INFO, " System Memory  (Kb): {0}", moleculeMemory / KB);
    }
    occupiedMemory = runtime.totalMemory() - runtime.freeMemory();
    if (gc) {
        logger.log(Level.INFO, " Memory In Use  (Kb): {0}", occupiedMemory / KB);
    }
}

---

From source file:org.apache.maven.cli.event.ExecutionEventLogger.java

private void logStats(MavenSession session) {
    logger.info(chars('-', LINE_LENGTH));

    long finish = System.currentTimeMillis();

    long time = finish - session.getRequest().getStartTime().getTime();

    String wallClock = session.getRequest().getDegreeOfConcurrency() > 1 ? " (Wall Clock)" : "";

    logger.info("Total time: " + formatDuration(time) + wallClock);

    logger.info("Finished at: " + formatTimestamp(finish));

    System.gc();//w  w w.  j ava2  s . com

    Runtime r = Runtime.getRuntime();

    long mb = 1024 * 1024;

    logger.info("Final Memory: " + (r.totalMemory() - r.freeMemory()) / mb + "M/" + r.totalMemory() / mb + "M");
}

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From source file:org.uva.itast.TestOMRProcessor.java

@Test
public void testProcessMultiPagePDFmultiDefinitions() {
    try {/*from   w ww  .j  a  v a  2  s.co  m*/
        //        if (false) 
        //             return;

        URL url = getClass().getClassLoader().getResource("56605.pdf");
        File testPath = new File(url.toURI());

        // use a single, common, template definition
        prepareConfig(testPath);
        File dir = testPath.getParentFile();
        Vector<PageImage> errores;

        if (logger.isInfoEnabled()) {
            logger.info("Test with definitions in a zip."); //$NON-NLS-1$
        }

        processor.getTemplates().clear();
        File zipDefinitions = new File(dir, "form_test.zip");
        processor.loadTemplateCollection(zipDefinitions.getAbsolutePath());

        detectErrors(testPath);
        // deteccin de errores
        // use a collection of templates from a directory
        if (logger.isInfoEnabled()) {
            logger.info("Test with definitions in a directory."); //$NON-NLS-1$
        }
        processor.getTemplates().clear();
        processor.loadTemplateCollection(dir.getAbsolutePath());

        detectErrors(testPath);

    } catch (Exception e) {
        fail("Can't configure test case." + e);
    } catch (OutOfMemoryError err) {
        Runtime runtime = Runtime.getRuntime();
        long totalMemory = runtime.totalMemory();
        long freeMemory = runtime.freeMemory();
        long maxMemory = runtime.maxMemory();
        String errorMsg = "testProcessMultiPagePDFmultiDefinitions(): Out of Memory.\n" + "Total:" + totalMemory
                + "\n" + "Max:" + maxMemory + "\n" + "Free:" + freeMemory;
        logger.fatal(errorMsg, err); //$NON-NLS-1$
        fail(errorMsg);
    }
}

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From source file:org.ambraproject.action.debug.DebugInfoAction.java

@Override
public String execute() throws Exception {
    if (!checkAccess()) {
        return ERROR;
    }//from   ww  w  .  j a  v a 2  s  .c o  m
    timestamp = new Date(System.currentTimeMillis());
    Runtime rt = Runtime.getRuntime();
    jvmFreeMemory = (double) rt.freeMemory() / (1024.0 * 1024.0);
    jvmTotalMemory = (double) rt.totalMemory() / (1024.0 * 1024.0);
    jvmMaxMemory = (double) rt.maxMemory() / (1024.0 * 1024.0);
    HttpServletRequest req = ServletActionContext.getRequest();
    tomcatVersion = ServletActionContext.getServletContext().getServerInfo();
    sessionCount = SessionCounter.getSessionCount();
    host = req.getLocalName();
    hostIp = req.getLocalAddr();
    buildInfo = generateBuildInfo();

    // The easiest way I found to get the URL and username for the DB.
    // It's not that easy and involves opening a connection...
    Context initialContext = new InitialContext();
    Context context = (Context) initialContext.lookup("java:comp/env");
    DataSource ds = (DataSource) context.lookup("jdbc/AmbraDS");
    Connection conn = null;
    try {
        conn = ds.getConnection();
        DatabaseMetaData metadata = conn.getMetaData();
        dbUrl = metadata.getURL();
        dbUser = metadata.getUserName();
    } finally {
        conn.close();
    }

    Configuration config = ConfigurationStore.getInstance().getConfiguration();
    FileStoreService filestoreService = (FileStoreService) context.lookup("ambra/FileStore");
    filestore = filestoreService.toString();
    solrUrl = (String) config.getProperty("ambra.services.search.server.url");
    configuration = dumpConfig(config);
    cmdLine = IOUtils.toString(new FileInputStream("/proc/self/cmdline"));

    return SUCCESS;
}

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From source file:com.ikon.servlet.admin.StatsGraphServlet.java

/**
 * Generate memory statistics// w ww.  ja v a  2 s  . co  m
 * http://blog.codebeach.com/2008/02/determine-available-memory-in-java.html
 */
public JFreeChart jvmMemStats() throws IOException, ServletException {
    Runtime runtime = Runtime.getRuntime();
    long max = runtime.maxMemory(); // maximum amount of memory that the JVM will attempt to use
    long available = runtime.totalMemory(); // total amount of memory in the JVM
    long free = runtime.freeMemory(); // amount of free memory in the JVM
    long used = max - available;
    long total = free + used;
    String title = "JVM memory: " + FormatUtil.formatSize(total);

    log.debug("JVM maximun memory: {}", FormatUtil.formatSize(max));
    log.debug("JVM available memory: {}", FormatUtil.formatSize(available));
    log.debug("JVM free memory: {}", FormatUtil.formatSize(free));
    log.debug("JVM used memory: {}", FormatUtil.formatSize(used));
    log.debug("JVM total memory: {}", FormatUtil.formatSize(total));

    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("Available (" + FormatUtil.formatSize(free) + ")", free * 100 / total);
    dataset.setValue("Used (" + FormatUtil.formatSize(used) + ")", used * 100 / total);

    return ChartFactory.createPieChart(title, dataset, true, false, false);
}

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