Example usage for java.lang Runtime freeMemory

List of usage examples for java.lang Runtime freeMemory

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Introduction

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

Prototype

public native long freeMemory();

Source Link

Document

Returns the amount of free memory in the Java Virtual Machine.

Usage

From source file:fedora.server.management.DefaultManagement.java

private void finishModification(DOWriter w, String method) throws ServerException {
    if (w != null) {
        m_manager.releaseWriter(w);/* w ww .  j a v a 2s . co  m*/
    }
    if (LOG.isDebugEnabled()) {
        LOG.debug("Exiting " + method);
        Runtime r = Runtime.getRuntime();
        LOG.debug("Memory: " + r.freeMemory() + " bytes free of " + r.totalMemory() + " available.");
    }
}

From source file:com.inverse2.ajaxtoaster.AjaxToasterServlet.java

private void returnHealth(HttpServletResponse response) throws Exception {

    StringBuffer healthInfo = new StringBuffer();

    healthInfo.append("AjaxToaster version " + getVersion() + "<br>");
    healthInfo.append("Using XMLToaster version " + com.inverse2.xmltoaster.Version.getVersion() + "<br>");
    healthInfo.append("Properties file name [" + propertiesPath + "]<br>");
    healthInfo.append("Script directory [" + scriptPath + "]<br>");
    healthInfo.append("Logging method [" + loggingType + "]<br>");
    healthInfo.append("Sleep interval [" + sleepInterval + "]<br>");
    healthInfo.append("<br>");
    healthInfo.append(serviceMapper.getURIMappings().replaceAll("\\n", "<br>"));
    healthInfo.append("<br>");

    healthInfo.append("List of operations available;<br><br>");

    List<ServiceOperationInfo> serviceList = servicePool.getOperationInfo();
    ServiceOperationInfo operation;/*from  w  w w  .  j  ava  2s. co  m*/

    for (Iterator<ServiceOperationInfo> it = serviceList.iterator(); it.hasNext();) {
        operation = it.next();
        healthInfo.append("-- " + operation.getServiceName() + "/" + operation.getOperationName() + "<br>");
    }

    Runtime rt = Runtime.getRuntime();

    healthInfo.append("<br>JVM: Total Mem [" + rt.totalMemory() + "], Free Mem [" + rt.freeMemory()
            + "], Max Mem [" + rt.maxMemory() + "]<br>");

    writeResponse(healthInfo.toString(), "HTML", null, response);
}

From source file:com.aurel.track.itemNavigator.ItemNavigatorAction.java

private long getUsedMemory() {
    Runtime rt = Runtime.getRuntime();
    long mbyte = 1024L * 1024;
    return (rt.totalMemory() - rt.freeMemory()) / mbyte;
}

From source file:com.aurel.track.itemNavigator.ItemNavigatorAction.java

private void checkMemory(long usedOld) {
    Runtime rt = Runtime.getRuntime();
    long mbyte = 1024L * 1024;
    long used = (rt.totalMemory() - rt.freeMemory()) / mbyte;
    if (rt.freeMemory() / mbyte < 100) {
        LOGGER.warn("Less than 100 MByte free memory available.");
    }//from ww w. ja  v  a 2 s  .c  o m
    LOGGER.debug("Used memory Delta: " + (used - usedOld) + " MByte");
    LOGGER.debug("Used memory total: " + used + " MByte");
}

From source file:org.fcrepo.server.management.DefaultManagement.java

private void finishModification(DOWriter w, String method) throws ServerException {
    if (w != null) {
        m_manager.releaseWriter(w);//  w  w  w. ja  va 2s.  c o m
    }
    if (logger.isDebugEnabled()) {
        logger.debug("Exiting " + method);
        Runtime r = Runtime.getRuntime();
        logger.debug("Memory: " + r.freeMemory() + " bytes free of " + r.totalMemory() + " available.");
    }
}

From source file:edu.stanford.muse.util.Util.java

public static String getMemoryStats() {
    Runtime r = Runtime.getRuntime();
    System.gc();/*from   w w  w.  ja v a2s.  c o m*/
    int MB = 1024 * 1024;
    return r.freeMemory() / MB + " MB free, " + (r.totalMemory() / MB - r.freeMemory() / MB) + " MB used, "
            + r.maxMemory() / MB + " MB max, " + r.totalMemory() / MB + " MB total";
}

From source file:ffx.potential.MolecularAssembly.java

/**
 * {@inheritDoc}/*from  w w w  .java 2 s  .  co  m*/
 */
@Override
public void finalize(boolean finalizeGroups, ForceField forceField) {
    setFinalized(false);
    if (finalizeGroups) {
        bondTime = 0;
        angleTime = 0;
        stretchBendTime = 0;
        ureyBradleyTime = 0;
        outOfPlaneBendTime = 0;
        torsionTime = 0;
        piOrbitalTorsionTime = 0;
        torsionTorsionTime = 0;
        ArrayList Polymers = getAtomNodeList();
        for (ListIterator li = Polymers.listIterator(); li.hasNext();) {
            MSGroup group = (MSGroup) li.next();
            if (logger.isLoggable(Level.FINE)) {
                logger.fine(" Finalizing bonded terms for polymer " + group.toString());
            }
            try {
                group.finalize(true, forceField);
            } catch (Exception e) {
                String message = "Fatal exception finalizing " + group.toString();
                logger.log(Level.SEVERE, message, e);
                System.exit(-1);
            }
            if (logger.isLoggable(Level.FINE)) {
                Runtime runtime = Runtime.getRuntime();
                long occupiedMemory = runtime.totalMemory() - runtime.freeMemory();
                long MB = 1024 * 1024;
                logger.fine("\n In-Use Memory   (Mb): " + occupiedMemory / MB + "\n Free Memory     (Mb): "
                        + runtime.freeMemory() / MB + "\n Total Memory    (Mb): " + runtime.totalMemory() / MB);
            }
        }
        for (MSNode m : molecules.getChildList()) {
            Molecule molecule = (Molecule) m;
            molecule.finalize(true, forceField);
        }
        for (MSNode m : water.getChildList()) {
            Molecule molecule = (Molecule) m;
            molecule.finalize(true, forceField);
        }
        for (MSNode m : ions.getChildList()) {
            Molecule molecule = (Molecule) m;
            molecule.finalize(true, forceField);
        }
        if (logger.isLoggable(Level.FINE)) {
            StringBuilder sb = new StringBuilder("\n Time to create bonded energy terms\n\n");
            sb.append(String.format(" Bond Streching     %10.3f\n", bondTime * 1.0e-9));
            sb.append(String.format(" Angle Bending      %10.3f\n", angleTime * 1.0e-9));
            sb.append(String.format(" Stretch-Bend       %10.3f\n", stretchBendTime * 1.0e-9));
            sb.append(String.format(" Urey-Bradley       %10.3f\n", ureyBradleyTime * 1.0e-9));
            sb.append(String.format(" Out-of-Plane Bend  %10.3f\n", outOfPlaneBendTime * 1.0e-9));
            sb.append(String.format(" Torsionanl Angle   %10.3f\n", torsionTime * 1.0e-9));
            sb.append(String.format(" Pi-Orbital Torsion %10.3f\n", piOrbitalTorsionTime * 1.0e-9));
            sb.append(String.format(" Torsion-Torsion    %10.3f\n", torsionTorsionTime * 1.0e-9));
            logger.fine(sb.toString());
        }
    }
    if (!java.awt.GraphicsEnvironment.isHeadless()) {
        createScene(!finalizeGroups);
        center();
    }
    removeLeaves();
    setFinalized(true);
}

From source file:de.hpi.fgis.hdrs.node.Node.java

@Override
public NodeStatus getNodeStatus() {
    Runtime rt = Runtime.getRuntime();
    return new NodeStatus(rt.freeMemory() + (rt.maxMemory() - rt.totalMemory()), bufferSize.get(),
            conf.getInt(Configuration.KEY_NODE_TRANSACTION_BUFFER,
                    Configuration.DEFAULT_NODE_TRANSACTION_BUFFER) - transactionMemPool.availablePermits(),
            segments.size(), transactions.size(), scanners.size());
}

From source file:org.pentaho.di.core.Const.java

/**
 * Return the percentage of free memory for this JVM.
 *
 * @return Percentage of free memory./* w  w w .j  av  a 2  s. c o m*/
 */
public static final int getPercentageFreeMemory() {
    Runtime runtime = Runtime.getRuntime();
    long maxMemory = runtime.maxMemory();
    long allocatedMemory = runtime.totalMemory();
    long freeMemory = runtime.freeMemory();
    long totalFreeMemory = (freeMemory + (maxMemory - allocatedMemory));

    int percentage = (int) Math.round(100 * (double) totalFreeMemory / maxMemory);

    return percentage;
}

From source file:com.lifehackinnovations.siteaudit.FloorPlanActivity.java

public Bitmap resizedbitmaponmemorycheck() {
    int width = (int) view.bitwidth[view.fp];
    int height = (int) view.bitheight[view.fp];

    final Runtime rt = Runtime.getRuntime();
    Log.d("free memory, maxmemory, total memory",
            rt.freeMemory() + " " + rt.maxMemory() + " " + rt.totalMemory());
    final long freeMem = rt.freeMemory() + (rt.maxMemory() - rt.totalMemory());
    File file1 = new File(Tabs1.floorplanstrings.get(view.fp));
    double ratio = 0.50;

    long myResourceSize = file1.length();

    Bitmap canvasbitmap;//from   w w w  .  ja  va 2s .  com
    //canvasbitmap = Bitmap.createBitmap(width, height,
    //      Bitmap.Config.ARGB_8888);
    Log.d("width and height", u.s(width) + " " + u.s(height));
    Log.d("myResourceSize, freeMem, ration", myResourceSize + " " + freeMem + " " + ratio);

    if (!u.isbluestacks()) {
        Log.d("not bluestacks", "true");
        ///This is where the app get out of memory error!!!

        canvasbitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);

    } else {

        FINALBITMAPSCALE = 4;
        Log.d("bluestacks", "true");
        canvasbitmap = Bitmap.createBitmap(width / FINALBITMAPSCALE, height / FINALBITMAPSCALE,
                Bitmap.Config.ARGB_8888);

    }

    return canvasbitmap;
}