List of usage examples for java.lang Runtime maxMemory
public native long maxMemory();
From source file:xc.mst.utils.TimingStats.java
private void outputMemory(boolean runGC) { if (runGC) {//from w w w . j ava 2 s . c o m 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:edu.ku.brc.ui.FeedBackSender.java
/** * Creates an array of POST method parameters to send with the version checking / usage tracking connection. * // ww w . j a va2 s. co 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; }
From source file:com.kyne.webby.bukkit.RTKModuleSocket.java
private void getInfos(final Map<String, Object> responseParams) { final List<WebbyPlayer> playerList = new ArrayList<WebbyPlayer>(); for (final Player player : Bukkit.getOnlinePlayers()) { playerList.add(new WebbyPlayer(player.getName(), player.isOp())); }//from w ww. ja va 2 s .c o m final Runtime runtime = Runtime.getRuntime(); final long freeMemory = runtime.freeMemory(); final long totalMemory = runtime.totalMemory(); final long maxMemory = runtime.maxMemory(); final int mb = 1024 * 1024; final ServerInfos serverInfos = new ServerInfos(Bukkit.getVersion(), Bukkit.getMaxPlayers(), playerList.size(), playerList, freeMemory / mb, totalMemory / mb, maxMemory / mb); responseParams.put("DATA", serverInfos); }
From source file:nz.govt.natlib.ndha.manualdeposit.dialogs.About.java
@SuppressWarnings("unchecked") private void startup() { try {/*from w ww . j a va 2 s . co m*/ try { theFormControl = new FormControl(this, theSettingsPath); } catch (Exception ex) { LOG.error("Error loading form parameters", ex); } ClassLoader cLoader = Thread.currentThread().getContextClassLoader(); Toolkit kit = Toolkit.getDefaultToolkit(); Package p = this.getClass().getPackage(); lblVersion.setText(p.getImplementationVersion()); if (new File(theLogoFileName).exists()) { theLogo = kit.getImage(theLogoFileName); } else { java.net.URL imageURL = cLoader.getResource(theLogoFileName); if (imageURL != null) { theLogo = kit.getImage(imageURL); } } if (theLogo != null) { lblBuildNo.setForeground(Color.white); lblBuildNoLabel.setForeground(Color.white); //lblHeader.setForeground(Color.white); lblVersion.setForeground(Color.white); lblVersionLabel.setForeground(Color.white); paintImage(); } //String manifestFileName = "/META-INF/MANIFEST.MF"; Class cls = this.getClass(); String className = cls.getSimpleName(); String classFileName = className + ".class"; String pathToThisClass = cls.getResource(classFileName).toString(); int mark = pathToThisClass.indexOf("!"); String pathToManifest = pathToThisClass.substring(0, mark + 1); if (!pathToManifest.equals("")) { pathToManifest += "/META-INF/MANIFEST.MF"; LOG.debug("Path to manifest: " + pathToManifest); Manifest mf = new Manifest(new URL(pathToManifest).openStream()); if (mf != null) { Attributes attr = mf.getMainAttributes(); String attrVersion = "Implementation-Version"; String attrBuild = "Implementation-Build"; String version = attr.getValue(attrVersion); String build = attr.getValue(attrBuild); this.lblVersion.setText(version); this.lblBuildNo.setText(build); } } Runtime runtime = Runtime.getRuntime(); long maxMemory = runtime.maxMemory(); long allocatedMemory = runtime.totalMemory(); long freeMemory = runtime.freeMemory(); LOG.debug("free memory: " + freeMemory / 1024); LOG.debug("allocated memory: " + allocatedMemory / 1024); LOG.debug("max memory: " + maxMemory / 1024); LOG.debug("total free memory: " + (freeMemory + (maxMemory - allocatedMemory)) / 1024); } catch (IOException ex) { ex.printStackTrace(); LOG.error(ex.getMessage(), ex); } }
From source file:com.ibm.bluemix.mobilestarterkit.service.ServiceAPI.java
@Path("/autoscaling") @POST/* w w w . j a va2 s . co m*/ public String autoScalingByMem(String param) { try { JSONObject meta = new JSONObject(param); Runtime rt = Runtime.getRuntime(); int mem_usage = (int) ((rt.totalMemory() * 100.0) / (rt.maxMemory() * 1.0)); String action = meta.getString("action"); if ("mem_up".equalsIgnoreCase(action)) { // 10M . Out of memory ? ?. for (int i = 0; i < 10; i++) { byte b[] = new byte[1048576]; v.add(b); } } else if ("mem_safe_up".equalsIgnoreCase(action) && mem_usage < 90) { // 90% ? ?, 10M . OOM for (int i = 0; i < 10; i++) { byte b[] = new byte[1048576]; v.add(b); } } else if ("mem_reset".equalsIgnoreCase(action)) { // ? v = new Vector(); rt.gc(); } String msg = "Max " + (rt.maxMemory() / 1000) + " KB Total used : " + (rt.totalMemory() / 1000) + " KB Free : " + (rt.freeMemory() / 1000) + " KB " + (int) ((rt.totalMemory() * 100.0) / (rt.maxMemory() * 1.0)) + " %"; System.out.println(msg); return msg; } catch (JSONException e) { e.getStackTrace(); return "Failed"; } }
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.gargoylesoftware.htmlunit.javascript.configuration.JavaScriptConfigurationTest.java
private String getMemoryStats() { final Runtime rt = Runtime.getRuntime(); final long free = rt.freeMemory() / 1024; final long total = rt.totalMemory() / 1024; final long max = rt.maxMemory() / 1024; final long used = total - free; final String format = "used: {0,number,0}K, free: {1,number,0}K, total: {2,number,0}K, max: {3,number,0}K"; return MessageFormat.format(format, Long.valueOf(used), Long.valueOf(free), Long.valueOf(total), Long.valueOf(max));/*from w ww.ja v a 2 s .co m*/ }
From source file:org.ngrinder.operation.cotroller.StatisticsController.java
/** * Get current jvm stat//from w w w .j a v a 2 s .com * * @return map for jvm used/free/total/max */ private Map<String, Long> getJVMStat() { Runtime runtime = Runtime.getRuntime(); Map<String, Long> stat = new HashMap<String, Long>(); stat.put("used", runtime.totalMemory() - runtime.freeMemory()); stat.put("free", runtime.freeMemory()); stat.put("total", runtime.totalMemory()); stat.put("max", runtime.maxMemory()); return stat; }
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:com.tesora.dve.common.PatternLayoutWithHeader.java
@Override public String getHeader() { Runtime runtime = Runtime.getRuntime(); StringBuffer header = new StringBuffer(); header.append(StringUtils.repeat("-", 80)); header.append("\nLog Started : ").append(new Date().toString()); header.append("\nBuild Info : ").append(PELogUtils.getBuildVersionString(true)); header.append("\nMemory : max=").append(String.format("%,d", runtime.maxMemory())).append(" total=") .append(String.format("%,d", runtime.totalMemory())).append(" free=") .append(String.format("%,d", runtime.freeMemory())); header.append("\nProcessors : ").append(runtime.availableProcessors()); try {/*from w w w . j av a 2 s . c om*/ header.append("\nHost : ").append(InetAddress.getLocalHost()); } catch (UnknownHostException e) { header.append("\nHost : unknown"); } header.append("\n"); return header.toString(); }