List of usage examples for java.lang.management MemoryUsage getUsed
public long getUsed()
From source file:com.appeligo.captions.CaptionListener.java
private synchronized static void checkStats() { int interval = 5; // minutes long timestamp = new Date().getTime(); if ((timestamp - lastWrite) > (interval * 60 * 1000)) { lastWrite = timestamp;/* w w w . j av a 2s .c o m*/ String day = Utils.getDatePath(timestamp); if (!day.equals(currentDay)) { if (statsFile != null) { statsFile.println("</table></body></html>"); statsFile.close(); statsFile = null; } currentDay = day; } if (hostname == null) { try { hostname = InetAddress.getLocalHost().getHostName(); } catch (UnknownHostException e) { hostname = "UnknownHost"; } } String dirname = documentRoot + "/stats/" + currentDay + "/" + hostname; String statsFileName = dirname + "/searchprocstats.html"; try { if (statsFile == null) { File dir = new File(dirname); if ((!dir.exists()) && (!dir.mkdirs())) { throw new IOException("Error creating directory " + dirname); } File file = new File(statsFileName); if (file.exists()) { statsFile = new PrintStream(new FileOutputStream(statsFileName, true)); statsFile.println("<tr><td colspan='5'>Restart</td></tr>"); } else { statsFile = new PrintStream(new FileOutputStream(statsFileName)); String title = "Search Process (tomcat) status for " + currentDay; statsFile.println("<html><head><title>" + title + "</title></head>"); statsFile.println("<body><h1>" + title + "</h1>"); statsFile.println("<table border='1'>"); statsFile.println("<tr>"); statsFile.println("<th colspan='2'>" + interval + " Minute Intervals</th>" + "<th colspan='3'>Mem Pre GC</th>" + "<th>GC</th>" + "<th colspan='3'>Mem Post GC</th>"); statsFile.println("</tr>"); statsFile.println("<tr>"); statsFile.println("<th>Timestamp</th>"); statsFile.println("<th>Time</th>"); statsFile.println("<th>Used</th>"); statsFile.println("<th>Committed</th>"); statsFile.println("<th>Max</th>"); statsFile.println("<th>Millis</th>"); statsFile.println("<th>Used</th>"); statsFile.println("<th>Committed</th>"); statsFile.println("<th>Max</th>"); statsFile.println("</tr>"); } } Calendar cal = Calendar.getInstance(); cal.setTimeZone(TimeZone.getTimeZone("GMT")); cal.setTimeInMillis(timestamp); String time = String.format("%1$tH:%1$tM:%1$tS", cal); MemoryMXBean memoryBean = ManagementFactory.getMemoryMXBean(); MemoryUsage memory = memoryBean.getHeapMemoryUsage(); statsFile.print("<tr>"); statsFile.print("<td>" + timestamp + "</td>"); statsFile.print("<td>" + time + "</td>"); statsFile.format("<td>%,d</td>", memory.getUsed()); statsFile.format("<td>%,d</td>", memory.getCommitted()); statsFile.format("<td>%,d</td>", memory.getMax()); long beforeGC = System.currentTimeMillis(); System.gc(); long elapsed = System.currentTimeMillis() - beforeGC; statsFile.format("<td>%,d</td>", (int) elapsed); memoryBean = ManagementFactory.getMemoryMXBean(); memory = memoryBean.getHeapMemoryUsage(); statsFile.format("<td>%,d</td>", memory.getUsed()); statsFile.format("<td>%,d</td>", memory.getCommitted()); statsFile.format("<td>%,d</td>", memory.getMax()); statsFile.println("</tr>"); } catch (IOException e) { log.error("Error opening or writing to " + statsFileName, e); } } }
From source file:org.jahia.bin.errors.ErrorFileDumper.java
private static void printMemoryUsage(String type, MemoryUsage usage, PrintWriter strOut) { strOut.println();/* www .j a v a 2s .co m*/ strOut.print(type); strOut.print(" : "); strOut.print(Math.round((float) usage.getUsed() / (float) usage.getMax() * 100f)); strOut.println("% used"); strOut.println("---------------"); strOut.print("Used : "); strOut.println(org.jahia.utils.FileUtils.humanReadableByteCount(usage.getUsed(), true)); strOut.print("Committed : "); strOut.println(org.jahia.utils.FileUtils.humanReadableByteCount(usage.getCommitted(), true)); strOut.print("Max : "); strOut.println(org.jahia.utils.FileUtils.humanReadableByteCount(usage.getMax(), true)); }
From source file:com.datumbox.common.utilities.ProcessStatistics.java
public long peakMemoryBytes() { long maxBytes = Long.MIN_VALUE; List<MemoryPoolMXBean> pools = ManagementFactory.getMemoryPoolMXBeans(); for (MemoryPoolMXBean pool : pools) { MemoryUsage peak = pool.getPeakUsage(); long peakUsed = peak.getUsed(); if (maxBytes < peakUsed) { maxBytes = peakUsed;//from www . j av a 2 s . c o m } } return maxBytes; }
From source file:test.integ.be.fedict.hsm.MonitoringTest.java
@Test public void testJMXConnection() throws Exception { JMXServiceURL jmxServiceURL = new JMXServiceURL("service:jmx:remoting-jmx://localhost:9999"); JMXConnector jmxConnector = JMXConnectorFactory.connect(jmxServiceURL); MBeanServerConnection connection = jmxConnector.getMBeanServerConnection(); MemoryMXBean memoryMXBean = ManagementFactory.newPlatformMXBeanProxy(connection, ManagementFactory.MEMORY_MXBEAN_NAME, MemoryMXBean.class); MemoryUsage heapMemoryUsage = memoryMXBean.getHeapMemoryUsage(); LOG.debug("used heap memory: " + heapMemoryUsage.getUsed()); }
From source file:org.uncommons.watchmaker.swing.evolutionmonitor.JVMView.java
private void addMemoryDataPoint() { MemoryUsage heapUsage = memoryBean.getHeapMemoryUsage(); double usedMegabytes = (double) heapUsage.getUsed() / MEGABYTE; Second second = new Second(); memoryUsageSeries.add(second, usedMegabytes); heapSizeSeries.add(second, (double) heapUsage.getCommitted() / MEGABYTE); }
From source file:com.chinamobile.bcbsp.comm.io.util.MemoryAllocator.java
/** Refresh memory status with current JVM status. */ private void refreshMemoryStatus() { MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean(); MemoryUsage memoryUsage = memoryMXBean.getHeapMemoryUsage(); used = memoryUsage.getUsed(); committed = memoryUsage.getCommitted(); maxHeapSize = memoryUsage.getMax();/*from w w w . jav a2s.co m*/ remain = maxHeapSize - used; }
From source file:com.chinamobile.bcbsp.comm.io.util.MemoryAllocator.java
/** Show the information of memory used. */ public void PrintMemoryInfo(Log LOG) { MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean(); MemoryUsage memoryUsage = memoryMXBean.getHeapMemoryUsage(); long usedNow = memoryUsage.getUsed(); long committedNow = memoryUsage.getCommitted(); long maxHeapSizeNow = memoryUsage.getMax(); long remainNow = maxHeapSize - used; LOG.info("Memory Usage **********************************************"); LOG.info("Memory Max ****************** " + maxHeapSizeNow); LOG.info("Memory Commit **************** " + committedNow + "-----Percents: " + committedNow * 1.0f / maxHeapSizeNow); LOG.info("Memory Used ****************** " + usedNow + "-----Percents: " + usedNow * 1.0f / maxHeapSizeNow); LOG.info("Memory Remain **************** " + remainNow + "-----Percents: " + remainNow * 1.0f / maxHeapSizeNow); }
From source file:org.craftercms.commons.monitoring.MemoryMonitor.java
/** * Private Constructor of the MemoryMonitor POJO * @param memName Type of MemoryMonitor to get the information. * @param memoryUsage {@link MemoryUsage} bean where the information is taken from. *//*from w w w. j a v a 2s.co m*/ private MemoryMonitor(String memName, MemoryUsage memoryUsage) { this.name = memName; this.init = FileUtils.byteCountToDisplaySize(memoryUsage.getInit()); this.used = FileUtils.byteCountToDisplaySize(memoryUsage.getUsed()); this.committed = FileUtils.byteCountToDisplaySize(memoryUsage.getCommitted()); this.max = FileUtils.byteCountToDisplaySize(memoryUsage.getMax()); }
From source file:com.thoughtworks.go.server.service.support.ServerRuntimeInformationProvider.java
private String format(MemoryUsage memoryUsage) { long init = memoryUsage.getInit(); long used = memoryUsage.getUsed(); long committed = memoryUsage.getCommitted(); long max = memoryUsage.getMax(); return String.format(" init: %s\n used: %s\n committed: %s\n max: %s\n", init, used, committed, max);/*from w w w. ja v a2s .c o m*/ }
From source file:ch.admin.suis.msghandler.servlet.PingServlet.java
private String calcHeapSpace() { MemoryUsage heap = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage(); long max = heap.getMax(); long used = heap.getUsed(); int percent = (int) Math.round(100.0 * used / max); return used + ":" + max + ":" + percent; }