public static void main(String args[]) {
MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
MemoryUsage heapMemoryUsage = memoryMXBean.getHeapMemoryUsage();
long init = heapMemoryUsage.getInit();
long used = heapMemoryUsage.getUsed();
long max = heapMemoryUsage.getMax();
long committed = heapMemoryUsage.getCommitted();
long free = max - used;
int usedPercent = (int) (used / max);
int freePercent = (int) (usedPercent / max);
MemoryUsage nonHeapMemoryUsage = memoryMXBean.getNonHeapMemoryUsage();
List<GarbageCollectorMXBean> garbageCollectorMXBeans =
ManagementFactory.getGarbageCollectorMXBeans();
List<MemoryPoolMXBean> memoryPoolMXBeans = ManagementFactory.getMemoryPoolMXBeans();
com.sun.management.OperatingSystemMXBean operatingSystemMXBean =
(com.sun.management.OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
long commitVirtual = operatingSystemMXBean.getCommittedVirtualMemorySize();
println(init, used, max, committed);
println(commitVirtual);
}
private void createRuntimeProps(MemberStateImpl memberState) {
Runtime runtime = Runtime.getRuntime();
ThreadMXBean threadMxBean = ManagementFactory.getThreadMXBean();
RuntimeMXBean runtimeMxBean = ManagementFactory.getRuntimeMXBean();
ClassLoadingMXBean clMxBean = ManagementFactory.getClassLoadingMXBean();
MemoryMXBean memoryMxBean = ManagementFactory.getMemoryMXBean();
MemoryUsage heapMemory = memoryMxBean.getHeapMemoryUsage();
MemoryUsage nonHeapMemory = memoryMxBean.getNonHeapMemoryUsage();
Map<String, Long> map = new HashMap<String, Long>();
map.put(
"runtime.availableProcessors", Integer.valueOf(runtime.availableProcessors()).longValue());
map.put("date.startTime", runtimeMxBean.getStartTime());
map.put("seconds.upTime", runtimeMxBean.getUptime());
map.put("memory.maxMemory", runtime.maxMemory());
map.put("memory.freeMemory", runtime.freeMemory());
map.put("memory.totalMemory", runtime.totalMemory());
map.put("memory.heapMemoryMax", heapMemory.getMax());
map.put("memory.heapMemoryUsed", heapMemory.getUsed());
map.put("memory.nonHeapMemoryMax", nonHeapMemory.getMax());
map.put("memory.nonHeapMemoryUsed", nonHeapMemory.getUsed());
map.put("runtime.totalLoadedClassCount", clMxBean.getTotalLoadedClassCount());
map.put(
"runtime.loadedClassCount", Integer.valueOf(clMxBean.getLoadedClassCount()).longValue());
map.put("runtime.unloadedClassCount", clMxBean.getUnloadedClassCount());
map.put("runtime.totalStartedThreadCount", threadMxBean.getTotalStartedThreadCount());
map.put("runtime.threadCount", Integer.valueOf(threadMxBean.getThreadCount()).longValue());
map.put(
"runtime.peakThreadCount", Integer.valueOf(threadMxBean.getPeakThreadCount()).longValue());
map.put(
"runtime.daemonThreadCount",
Integer.valueOf(threadMxBean.getDaemonThreadCount()).longValue());
memberState.setRuntimeProps(map);
}
/**
* Callback routine called by JVM after full gc run. Has two functions: 1) sets the amount of
* memory to be cleaned from the cache by the Cleaner 2) sets the CAN_ALLOC flag to false if
* memory level is critical
*
* <p>The callback happens in a system thread, and hence not through the usual water.Boot loader
* - and so any touched classes are in the wrong class loader and you end up with new classes
* with uninitialized global vars. Limit to touching global vars in the Boot class.
*/
public void handleNotification(Notification notification, Object handback) {
String notifType = notification.getType();
if (notifType.equals(MemoryNotificationInfo.MEMORY_COLLECTION_THRESHOLD_EXCEEDED)) {
// Memory used after this FullGC
Boot.TIME_AT_LAST_GC = System.currentTimeMillis();
Boot.HEAP_USED_AT_LAST_GC = _allMemBean.getHeapMemoryUsage().getUsed();
Boot.kick_store_cleaner();
}
}
/**
* Prints the verbose GC log to System.out to list the memory usage of all memory pools as well as
* the GC statistics.
*/
public void printVerboseGc() {
System.out.println("Uptime: " + formatMillis(rmbean.getUptime()));
System.out.println("Heap usage: " + mmbean.getHeapMemoryUsage());
System.out.println("Non-Heap memory usage: " + mmbean.getNonHeapMemoryUsage());
for (GarbageCollectorMXBean gc : gcmbeans) {
System.out.print(" [" + gc.getName() + ": ");
System.out.print("Count=" + gc.getCollectionCount());
System.out.print(" GCTime=" + formatMillis(gc.getCollectionTime()));
System.out.print("]");
}
System.out.println();
for (MemoryPoolMXBean p : pools) {
System.out.print(" [" + p.getName() + ":");
MemoryUsage u = p.getUsage();
System.out.print(" Used=" + formatBytes(u.getUsed()));
System.out.print(" Committed=" + formatBytes(u.getCommitted()));
System.out.println("]");
}
}
synchronized Result formatSummary() {
Result result = new Result();
ProxyClient proxyClient = vmPanel.getProxyClient();
if (proxyClient.isDead()) {
return null;
}
buf = new StringBuilder();
append("<table cellpadding=1>");
try {
RuntimeMXBean rmBean = proxyClient.getRuntimeMXBean();
CompilationMXBean cmpMBean = proxyClient.getCompilationMXBean();
ThreadMXBean tmBean = proxyClient.getThreadMXBean();
MemoryMXBean memoryBean = proxyClient.getMemoryMXBean();
ClassLoadingMXBean clMBean = proxyClient.getClassLoadingMXBean();
OperatingSystemMXBean osMBean = proxyClient.getOperatingSystemMXBean();
com.sun.management.OperatingSystemMXBean sunOSMBean =
proxyClient.getSunOperatingSystemMXBean();
append("<tr><td colspan=4>");
append("<center><b>" + Messages.SUMMARY_TAB_TAB_NAME + "</b></center>");
String dateTime = headerDateTimeFormat.format(System.currentTimeMillis());
append("<center>" + dateTime + "</center>");
append(newDivider);
{ // VM info
append(newLeftTable);
append(Messages.CONNECTION_NAME, vmPanel.getDisplayName());
append(
Messages.VIRTUAL_MACHINE,
Resources.format(
Messages.SUMMARY_TAB_VM_VERSION, rmBean.getVmName(), rmBean.getVmVersion()));
append(Messages.VENDOR, rmBean.getVmVendor());
append(Messages.NAME, rmBean.getName());
append(endTable);
append(newRightTable);
result.upTime = rmBean.getUptime();
append(Messages.UPTIME, formatTime(result.upTime));
if (sunOSMBean != null) {
result.processCpuTime = sunOSMBean.getProcessCpuTime();
append(Messages.PROCESS_CPU_TIME, formatNanoTime(result.processCpuTime));
}
if (cmpMBean != null) {
append(Messages.JIT_COMPILER, cmpMBean.getName());
append(
Messages.TOTAL_COMPILE_TIME,
cmpMBean.isCompilationTimeMonitoringSupported()
? formatTime(cmpMBean.getTotalCompilationTime())
: Messages.UNAVAILABLE);
} else {
append(Messages.JIT_COMPILER, Messages.UNAVAILABLE);
}
append(endTable);
}
append(newDivider);
{ // Threads and Classes
append(newLeftTable);
int tlCount = tmBean.getThreadCount();
int tdCount = tmBean.getDaemonThreadCount();
int tpCount = tmBean.getPeakThreadCount();
long ttCount = tmBean.getTotalStartedThreadCount();
String[] strings1 =
formatLongs(
tlCount, tpCount,
tdCount, ttCount);
append(Messages.LIVE_THREADS, strings1[0]);
append(Messages.PEAK, strings1[1]);
append(Messages.DAEMON_THREADS, strings1[2]);
append(Messages.TOTAL_THREADS_STARTED, strings1[3]);
append(endTable);
append(newRightTable);
long clCount = clMBean.getLoadedClassCount();
long cuCount = clMBean.getUnloadedClassCount();
long ctCount = clMBean.getTotalLoadedClassCount();
String[] strings2 = formatLongs(clCount, cuCount, ctCount);
append(Messages.CURRENT_CLASSES_LOADED, strings2[0]);
append(Messages.TOTAL_CLASSES_LOADED, strings2[2]);
append(Messages.TOTAL_CLASSES_UNLOADED, strings2[1]);
append(null, "");
append(endTable);
}
append(newDivider);
{ // Memory
MemoryUsage u = memoryBean.getHeapMemoryUsage();
append(newLeftTable);
String[] strings1 = formatKByteStrings(u.getUsed(), u.getMax());
append(Messages.CURRENT_HEAP_SIZE, strings1[0]);
append(Messages.MAXIMUM_HEAP_SIZE, strings1[1]);
append(endTable);
append(newRightTable);
String[] strings2 = formatKByteStrings(u.getCommitted());
append(Messages.COMMITTED_MEMORY, strings2[0]);
append(
Messages.SUMMARY_TAB_PENDING_FINALIZATION_LABEL,
Messages.SUMMARY_TAB_PENDING_FINALIZATION_VALUE,
memoryBean.getObjectPendingFinalizationCount());
append(endTable);
append(newTable);
Collection<GarbageCollectorMXBean> garbageCollectors =
proxyClient.getGarbageCollectorMXBeans();
for (GarbageCollectorMXBean garbageCollectorMBean : garbageCollectors) {
String gcName = garbageCollectorMBean.getName();
long gcCount = garbageCollectorMBean.getCollectionCount();
long gcTime = garbageCollectorMBean.getCollectionTime();
append(
Messages.GARBAGE_COLLECTOR,
Resources.format(
Messages.GC_INFO,
gcName,
gcCount,
(gcTime >= 0) ? formatTime(gcTime) : Messages.UNAVAILABLE),
4);
}
append(endTable);
}
append(newDivider);
{ // Operating System info
append(newLeftTable);
String osName = osMBean.getName();
String osVersion = osMBean.getVersion();
String osArch = osMBean.getArch();
result.nCPUs = osMBean.getAvailableProcessors();
append(Messages.OPERATING_SYSTEM, osName + " " + osVersion);
append(Messages.ARCHITECTURE, osArch);
append(Messages.NUMBER_OF_PROCESSORS, result.nCPUs + "");
if (pathSeparator == null) {
// Must use separator of remote OS, not File.pathSeparator
// from this local VM. In the future, consider using
// RuntimeMXBean to get the remote system property.
pathSeparator = osName.startsWith("Windows ") ? ";" : ":";
}
if (sunOSMBean != null) {
String[] kbStrings1 = formatKByteStrings(sunOSMBean.getCommittedVirtualMemorySize());
String[] kbStrings2 =
formatKByteStrings(
sunOSMBean.getTotalPhysicalMemorySize(),
sunOSMBean.getFreePhysicalMemorySize(),
sunOSMBean.getTotalSwapSpaceSize(),
sunOSMBean.getFreeSwapSpaceSize());
append(Messages.COMMITTED_VIRTUAL_MEMORY, kbStrings1[0]);
append(endTable);
append(newRightTable);
append(Messages.TOTAL_PHYSICAL_MEMORY, kbStrings2[0]);
append(Messages.FREE_PHYSICAL_MEMORY, kbStrings2[1]);
append(Messages.TOTAL_SWAP_SPACE, kbStrings2[2]);
append(Messages.FREE_SWAP_SPACE, kbStrings2[3]);
}
append(endTable);
}
append(newDivider);
{ // VM arguments and paths
append(newTable);
String args = "";
java.util.List<String> inputArguments = rmBean.getInputArguments();
for (String arg : inputArguments) {
args += arg + " ";
}
append(Messages.VM_ARGUMENTS, args, 4);
append(Messages.CLASS_PATH, rmBean.getClassPath(), 4);
append(Messages.LIBRARY_PATH, rmBean.getLibraryPath(), 4);
append(
Messages.BOOT_CLASS_PATH,
rmBean.isBootClassPathSupported() ? rmBean.getBootClassPath() : Messages.UNAVAILABLE,
4);
append(endTable);
}
} catch (IOException e) {
if (JConsole.isDebug()) {
e.printStackTrace();
}
proxyClient.markAsDead();
return null;
} catch (UndeclaredThrowableException e) {
if (JConsole.isDebug()) {
e.printStackTrace();
}
proxyClient.markAsDead();
return null;
}
append("</table>");
result.timeStamp = System.currentTimeMillis();
result.summary = buf.toString();
return result;
}
/** Exports stats related to the JVM and runtime environment. */
public static void export() {
final OperatingSystemMXBean osMbean = ManagementFactory.getOperatingSystemMXBean();
if (osMbean instanceof com.sun.management.OperatingSystemMXBean) {
final com.sun.management.OperatingSystemMXBean sunOsMbean =
(com.sun.management.OperatingSystemMXBean) osMbean;
Stats.exportAll(
ImmutableList.<Stat<? extends Number>>builder()
.add(
new StatImpl<Long>("system_free_physical_memory_mb") {
@Override
public Long read() {
return sunOsMbean.getFreePhysicalMemorySize() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("system_free_swap_mb") {
@Override
public Long read() {
return sunOsMbean.getFreeSwapSpaceSize() / BYTES_PER_MB;
}
})
.add(
Rate.of(
new StatImpl<Long>("process_cpu_time_nanos") {
@Override
public Long read() {
return sunOsMbean.getProcessCpuTime();
}
})
.withName("process_cpu_cores_utilized")
.withScaleFactor(SECS_PER_NANO)
.build())
.build());
}
if (osMbean instanceof com.sun.management.UnixOperatingSystemMXBean) {
final com.sun.management.UnixOperatingSystemMXBean unixOsMbean =
(com.sun.management.UnixOperatingSystemMXBean) osMbean;
Stats.exportAll(
ImmutableList.<Stat<? extends Number>>builder()
.add(
new StatImpl<Long>("process_max_fd_count") {
@Override
public Long read() {
return unixOsMbean.getMaxFileDescriptorCount();
}
})
.add(
new StatImpl<Long>("process_open_fd_count") {
@Override
public Long read() {
return unixOsMbean.getOpenFileDescriptorCount();
}
})
.build());
}
final Runtime runtime = Runtime.getRuntime();
final ClassLoadingMXBean classLoadingBean = ManagementFactory.getClassLoadingMXBean();
MemoryMXBean memoryBean = ManagementFactory.getMemoryMXBean();
final MemoryUsage heapUsage = memoryBean.getHeapMemoryUsage();
final MemoryUsage nonHeapUsage = memoryBean.getNonHeapMemoryUsage();
final ThreadMXBean threads = ManagementFactory.getThreadMXBean();
final RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();
Stats.exportAll(
ImmutableList.<Stat<? extends Number>>builder()
.add(
new StatImpl<Long>("jvm_time_ms") {
@Override
public Long read() {
return System.currentTimeMillis();
}
})
.add(
new StatImpl<Integer>("jvm_available_processors") {
@Override
public Integer read() {
return runtime.availableProcessors();
}
})
.add(
new StatImpl<Long>("jvm_memory_free_mb") {
@Override
public Long read() {
return runtime.freeMemory() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_memory_max_mb") {
@Override
public Long read() {
return runtime.maxMemory() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_memory_mb_total") {
@Override
public Long read() {
return runtime.totalMemory() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Integer>("jvm_class_loaded_count") {
@Override
public Integer read() {
return classLoadingBean.getLoadedClassCount();
}
})
.add(
new StatImpl<Long>("jvm_class_total_loaded_count") {
@Override
public Long read() {
return classLoadingBean.getTotalLoadedClassCount();
}
})
.add(
new StatImpl<Long>("jvm_class_unloaded_count") {
@Override
public Long read() {
return classLoadingBean.getUnloadedClassCount();
}
})
.add(
new StatImpl<Long>("jvm_gc_collection_time_ms") {
@Override
public Long read() {
long collectionTimeMs = 0;
for (GarbageCollectorMXBean bean :
ManagementFactory.getGarbageCollectorMXBeans()) {
collectionTimeMs += bean.getCollectionTime();
}
return collectionTimeMs;
}
})
.add(
new StatImpl<Long>("jvm_gc_collection_count") {
@Override
public Long read() {
long collections = 0;
for (GarbageCollectorMXBean bean :
ManagementFactory.getGarbageCollectorMXBeans()) {
collections += bean.getCollectionCount();
}
return collections;
}
})
.add(
new StatImpl<Long>("jvm_memory_heap_mb_used") {
@Override
public Long read() {
return heapUsage.getUsed() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_memory_heap_mb_committed") {
@Override
public Long read() {
return heapUsage.getCommitted() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_memory_heap_mb_max") {
@Override
public Long read() {
return heapUsage.getMax() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_memory_non_heap_mb_used") {
@Override
public Long read() {
return nonHeapUsage.getUsed() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_memory_non_heap_mb_committed") {
@Override
public Long read() {
return nonHeapUsage.getCommitted() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_memory_non_heap_mb_max") {
@Override
public Long read() {
return nonHeapUsage.getMax() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_uptime_secs") {
@Override
public Long read() {
return runtimeMXBean.getUptime() / 1000;
}
})
.add(
new StatImpl<Double>("system_load_avg") {
@Override
public Double read() {
return osMbean.getSystemLoadAverage();
}
})
.add(
new StatImpl<Integer>("jvm_threads_peak") {
@Override
public Integer read() {
return threads.getPeakThreadCount();
}
})
.add(
new StatImpl<Long>("jvm_threads_started") {
@Override
public Long read() {
return threads.getTotalStartedThreadCount();
}
})
.add(
new StatImpl<Integer>("jvm_threads_daemon") {
@Override
public Integer read() {
return threads.getDaemonThreadCount();
}
})
.add(
new StatImpl<Integer>("jvm_threads_active") {
@Override
public Integer read() {
return threads.getThreadCount();
}
})
.build());
// Export per memory pool gc time and cycle count like Ostrich
// This is based on code in Bridcage: https://cgit.twitter.biz/birdcage/tree/ \
// ostrich/src/main/scala/com/twitter/ostrich/stats/StatsCollection.scala
Stats.exportAll(
Iterables.transform(
ManagementFactory.getGarbageCollectorMXBeans(),
new Function<GarbageCollectorMXBean, Stat<? extends Number>>() {
@Override
public Stat<? extends Number> apply(final GarbageCollectorMXBean gcMXBean) {
return new StatImpl<Long>(
"jvm_gc_" + Stats.normalizeName(gcMXBean.getName()) + "_collection_count") {
@Override
public Long read() {
return gcMXBean.getCollectionCount();
}
};
}
}));
Stats.exportAll(
Iterables.transform(
ManagementFactory.getGarbageCollectorMXBeans(),
new Function<GarbageCollectorMXBean, Stat<? extends Number>>() {
@Override
public Stat<? extends Number> apply(final GarbageCollectorMXBean gcMXBean) {
return new StatImpl<Long>(
"jvm_gc_" + Stats.normalizeName(gcMXBean.getName()) + "_collection_time_ms") {
@Override
public Long read() {
return gcMXBean.getCollectionTime();
}
};
}
}));
Stats.exportString(
new StatImpl<String>("jvm_input_arguments") {
@Override
public String read() {
return runtimeMXBean.getInputArguments().toString();
}
});
for (final String property : System.getProperties().stringPropertyNames()) {
Stats.exportString(
new StatImpl<String>("jvm_prop_" + Stats.normalizeName(property)) {
@Override
public String read() {
return System.getProperty(property);
}
});
}
}