Java Code Examples for java.lang.management.ThreadMXBean#getThreadCount()
The following examples show how to use
java.lang.management.ThreadMXBean#getThreadCount() .
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Example 1
| Source File: GetStatusServlet.java From pentaho-kettle with Apache License 2.0 | 6 votes |
|
private static void getSystemInfo( SlaveServerStatus serverStatus ) {
OperatingSystemMXBean operatingSystemMXBean =
java.lang.management.ManagementFactory.getOperatingSystemMXBean();
ThreadMXBean threadMXBean = java.lang.management.ManagementFactory.getThreadMXBean();
RuntimeMXBean runtimeMXBean = java.lang.management.ManagementFactory.getRuntimeMXBean();
int cores = Runtime.getRuntime().availableProcessors();
long freeMemory = Runtime.getRuntime().freeMemory();
long totalMemory = Runtime.getRuntime().totalMemory();
String osArch = operatingSystemMXBean.getArch();
String osName = operatingSystemMXBean.getName();
String osVersion = operatingSystemMXBean.getVersion();
double loadAvg = operatingSystemMXBean.getSystemLoadAverage();
int threadCount = threadMXBean.getThreadCount();
long allThreadsCpuTime = 0L;
long[] threadIds = threadMXBean.getAllThreadIds();
for ( int i = 0; i < threadIds.length; i++ ) {
allThreadsCpuTime += threadMXBean.getThreadCpuTime( threadIds[ i ] );
}
long uptime = runtimeMXBean.getUptime();
serverStatus.setCpuCores( cores );
serverStatus.setCpuProcessTime( allThreadsCpuTime );
serverStatus.setUptime( uptime );
serverStatus.setThreadCount( threadCount );
serverStatus.setLoadAvg( loadAvg );
serverStatus.setOsName( osName );
serverStatus.setOsVersion( osVersion );
serverStatus.setOsArchitecture( osArch );
serverStatus.setMemoryFree( freeMemory );
serverStatus.setMemoryTotal( totalMemory );
}
Example 2
| Source File: ThreadUtils.java From ats-framework with Apache License 2.0 | 6 votes |
|
/**
* @return a list of all threads started in the JVM.
*/
public List<Thread> getAllThreads() {
final ThreadGroup root = getRootThreadGroup();
final ThreadMXBean thbean = ManagementFactory.getThreadMXBean();
// get the number of all live threads
int nAlloc = thbean.getThreadCount();
int n = 0;
Thread[] threads;
do {
nAlloc *= 2; // increase the size since more threads may have been created
threads = new Thread[nAlloc];
n = root.enumerate(threads, true); // get all active threads from this thread group
} while (n == nAlloc); // stop if all active threads are enumerated
List<Thread> res = new ArrayList<Thread>();
for (Thread th : threads) {
res.add(th);
}
return res;
}
Example 3
| Source File: ThreadsIterator.java From Bats with Apache License 2.0 | 6 votes |
|
@Override
public Object next() {
if (!beforeFirst) {
throw new IllegalStateException();
}
beforeFirst = false;
final ThreadsInfo threadsInfo = new ThreadsInfo();
final DrillbitEndpoint endpoint = context.getEndpoint();
threadsInfo.hostname = endpoint.getAddress();
threadsInfo.user_port = endpoint.getUserPort();
final ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
threadsInfo.total_threads = threadMXBean.getPeakThreadCount();
threadsInfo.busy_threads = threadMXBean.getThreadCount();
return threadsInfo;
}
Example 4
| Source File: ThreadSensor.java From swage with Apache License 2.0 | 6 votes |
|
@Override
public void sense(final MetricContext metricContext)
{
ThreadMXBean mxBean = ManagementFactory.getThreadMXBean();
int current = mxBean.getThreadCount();
int peak = mxBean.getPeakThreadCount();
if (peak > historicalPeak) {
historicalPeak = peak;
}
metricContext.record(THREADS, current, Unit.NONE);
metricContext.record(PERIODIC_PEAK_THREADS, peak, Unit.NONE);
metricContext.record(PEAK_THREADS, historicalPeak, Unit.NONE);
mxBean.resetPeakThreadCount();
}
Example 5
| Source File: SystemInfo.java From boubei-tss with Apache License 2.0 | 5 votes |
|
@RequestMapping(value = "/test", method = RequestMethod.GET)
@ResponseBody
public Object[] getThreadInfos() {
ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
ThreadInfo[] threadInfos = threadMXBean.dumpAllThreads(true, true);
Long random = null;
try {
random = SecureRandom.getInstance("SHA1PRNG").nextLong();
} catch (NoSuchAlgorithmException e) {
}
return new Object[] { threadMXBean.getThreadCount(), threadInfos, random };
}
Example 6
| Source File: ThreadLists.java From jdk8u_jdk with GNU General Public License v2.0 | 5 votes |
|
public static void main(String args[]) {
// get top-level thread group
ThreadGroup top = Thread.currentThread().getThreadGroup();
ThreadGroup parent;
do {
parent = top.getParent();
if (parent != null) top = parent;
} while (parent != null);
// get the thread count
int activeCount = top.activeCount();
Map<Thread, StackTraceElement[]> stackTraces = Thread.getAllStackTraces();
ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
int threadCount = threadBean.getThreadCount();
long[] threadIds = threadBean.getAllThreadIds();
System.out.println("ThreadGroup: " + activeCount + " active thread(s)");
System.out.println("Thread: " + stackTraces.size() + " stack trace(s) returned");
System.out.println("ThreadMXBean: " + threadCount + " live threads(s)");
System.out.println("ThreadMXBean: " + threadIds.length + " thread Id(s)");
// check results are consistent
boolean failed = false;
if (activeCount != stackTraces.size()) failed = true;
if (activeCount != threadCount) failed = true;
if (activeCount != threadIds.length) failed = true;
if (failed) {
throw new RuntimeException("inconsistent results");
}
}
Example 7
| Source File: MonitoredDataImpl.java From visualvm with GNU General Public License v2.0 | 5 votes |
|
MonitoredDataImpl(JmxSupport jmxSupport,JvmMXBeans jmxModel) {
this(jmxSupport);
RuntimeMXBean runtimeBean = jmxModel.getRuntimeMXBean();
upTime = runtimeBean.getUptime();
ClassLoadingMXBean classBean = jmxModel.getClassLoadingMXBean();
ThreadMXBean threadBean = jmxModel.getThreadMXBean();
MemoryUsage mem = jmxModel.getMemoryMXBean().getHeapMemoryUsage();
MemoryPoolMXBean permBean = jmxSupport.getPermGenPool();
unloadedClasses = classBean.getUnloadedClassCount();
loadedClasses = classBean.getLoadedClassCount() + unloadedClasses;
sharedLoadedClasses = 0;
sharedUnloadedClasses = 0;
threadsDaemon = threadBean.getDaemonThreadCount();
threadsLive = threadBean.getThreadCount();
threadsLivePeak = threadBean.getPeakThreadCount();
threadsStarted = threadBean.getTotalStartedThreadCount();
applicationTime = 0;
genCapacity = new long[2];
genUsed = new long[2];
genMaxCapacity = new long[2];
genCapacity[0] = mem.getCommitted();
genUsed[0] = mem.getUsed();
genMaxCapacity[0] = mem.getMax();
if (permBean != null) {
MemoryUsage perm = permBean.getUsage();
genCapacity[1] = perm.getCommitted();
genUsed[1] = perm.getUsed();
genMaxCapacity[1] = perm.getMax();
}
}
Example 8
| Source File: ThreadLists.java From openjdk-8-source with GNU General Public License v2.0 | 5 votes |
|
public static void main(String args[]) {
// get top-level thread group
ThreadGroup top = Thread.currentThread().getThreadGroup();
ThreadGroup parent;
do {
parent = top.getParent();
if (parent != null) top = parent;
} while (parent != null);
// get the thread count
int activeCount = top.activeCount();
Map<Thread, StackTraceElement[]> stackTraces = Thread.getAllStackTraces();
ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
int threadCount = threadBean.getThreadCount();
long[] threadIds = threadBean.getAllThreadIds();
System.out.println("ThreadGroup: " + activeCount + " active thread(s)");
System.out.println("Thread: " + stackTraces.size() + " stack trace(s) returned");
System.out.println("ThreadMXBean: " + threadCount + " live threads(s)");
System.out.println("ThreadMXBean: " + threadIds.length + " thread Id(s)");
// check results are consistent
boolean failed = false;
if (activeCount != stackTraces.size()) failed = true;
if (activeCount != threadCount) failed = true;
if (activeCount != threadIds.length) failed = true;
if (failed) {
throw new RuntimeException("inconsistent results");
}
}
Example 9
| Source File: ThreadLists.java From hottub with GNU General Public License v2.0 | 5 votes |
|
public static void main(String args[]) {
// get top-level thread group
ThreadGroup top = Thread.currentThread().getThreadGroup();
ThreadGroup parent;
do {
parent = top.getParent();
if (parent != null) top = parent;
} while (parent != null);
// get the thread count
int activeCount = top.activeCount();
Map<Thread, StackTraceElement[]> stackTraces = Thread.getAllStackTraces();
ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
int threadCount = threadBean.getThreadCount();
long[] threadIds = threadBean.getAllThreadIds();
System.out.println("ThreadGroup: " + activeCount + " active thread(s)");
System.out.println("Thread: " + stackTraces.size() + " stack trace(s) returned");
System.out.println("ThreadMXBean: " + threadCount + " live threads(s)");
System.out.println("ThreadMXBean: " + threadIds.length + " thread Id(s)");
// check results are consistent
boolean failed = false;
if (activeCount != stackTraces.size()) failed = true;
if (activeCount != threadCount) failed = true;
if (activeCount != threadIds.length) failed = true;
if (failed) {
throw new RuntimeException("inconsistent results");
}
}
Example 10
| Source File: ThreadUtil.java From cloudhopper-commons with Apache License 2.0 | 5 votes |
|
/**
* Gets all threads in the JVM. This is really a snapshot of all threads
* at the time this method is called.
* @return An array of all threads currently running in the JVM.
*/
static public Thread[] getAllThreads() {
final ThreadGroup root = getRootThreadGroup();
final ThreadMXBean thbean = ManagementFactory.getThreadMXBean();
int nAlloc = thbean.getThreadCount();
int n = 0;
Thread[] threads;
do {
nAlloc *= 2;
threads = new Thread[nAlloc];
n = root.enumerate(threads, true);
} while (n == nAlloc);
return java.util.Arrays.copyOf(threads, n);
}
Example 11
| Source File: ThreadLists.java From openjdk-jdk8u with GNU General Public License v2.0 | 5 votes |
|
public static void main(String args[]) {
// get top-level thread group
ThreadGroup top = Thread.currentThread().getThreadGroup();
ThreadGroup parent;
do {
parent = top.getParent();
if (parent != null) top = parent;
} while (parent != null);
// get the thread count
int activeCount = top.activeCount();
Map<Thread, StackTraceElement[]> stackTraces = Thread.getAllStackTraces();
ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
int threadCount = threadBean.getThreadCount();
long[] threadIds = threadBean.getAllThreadIds();
System.out.println("ThreadGroup: " + activeCount + " active thread(s)");
System.out.println("Thread: " + stackTraces.size() + " stack trace(s) returned");
System.out.println("ThreadMXBean: " + threadCount + " live threads(s)");
System.out.println("ThreadMXBean: " + threadIds.length + " thread Id(s)");
// check results are consistent
boolean failed = false;
if (activeCount != stackTraces.size()) failed = true;
if (activeCount != threadCount) failed = true;
if (activeCount != threadIds.length) failed = true;
if (failed) {
throw new RuntimeException("inconsistent results");
}
}
Example 12
| Source File: ThreadLists.java From jdk8u60 with GNU General Public License v2.0 | 5 votes |
|
public static void main(String args[]) {
// get top-level thread group
ThreadGroup top = Thread.currentThread().getThreadGroup();
ThreadGroup parent;
do {
parent = top.getParent();
if (parent != null) top = parent;
} while (parent != null);
// get the thread count
int activeCount = top.activeCount();
Map<Thread, StackTraceElement[]> stackTraces = Thread.getAllStackTraces();
ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
int threadCount = threadBean.getThreadCount();
long[] threadIds = threadBean.getAllThreadIds();
System.out.println("ThreadGroup: " + activeCount + " active thread(s)");
System.out.println("Thread: " + stackTraces.size() + " stack trace(s) returned");
System.out.println("ThreadMXBean: " + threadCount + " live threads(s)");
System.out.println("ThreadMXBean: " + threadIds.length + " thread Id(s)");
// check results are consistent
boolean failed = false;
if (activeCount != stackTraces.size()) failed = true;
if (activeCount != threadCount) failed = true;
if (activeCount != threadIds.length) failed = true;
if (failed) {
throw new RuntimeException("inconsistent results");
}
}
Example 13
| Source File: ThreadLists.java From native-obfuscator with GNU General Public License v3.0 | 5 votes |
|
public static void main(String args[]) {
// get top-level thread group
ThreadGroup top = Thread.currentThread().getThreadGroup();
ThreadGroup parent;
do {
parent = top.getParent();
if (parent != null) top = parent;
} while (parent != null);
// get the thread count
int activeCount = top.activeCount();
Map<Thread, StackTraceElement[]> stackTraces = Thread.getAllStackTraces();
ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
int threadCount = threadBean.getThreadCount();
long[] threadIds = threadBean.getAllThreadIds();
System.out.println("ThreadGroup: " + activeCount + " active thread(s)");
System.out.println("Thread: " + stackTraces.size() + " stack trace(s) returned");
System.out.println("ThreadMXBean: " + threadCount + " live threads(s)");
System.out.println("ThreadMXBean: " + threadIds.length + " thread Id(s)");
// check results are consistent
boolean failed = false;
if (activeCount != stackTraces.size()) failed = true;
if (activeCount != threadCount) failed = true;
if (activeCount != threadIds.length) failed = true;
if (failed) {
throw new RuntimeException("inconsistent results");
}
}
Example 14
| Source File: ThreadLists.java From TencentKona-8 with GNU General Public License v2.0 | 5 votes |
|
public static void main(String args[]) {
// get top-level thread group
ThreadGroup top = Thread.currentThread().getThreadGroup();
ThreadGroup parent;
do {
parent = top.getParent();
if (parent != null) top = parent;
} while (parent != null);
// get the thread count
int activeCount = top.activeCount();
Map<Thread, StackTraceElement[]> stackTraces = Thread.getAllStackTraces();
ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
int threadCount = threadBean.getThreadCount();
long[] threadIds = threadBean.getAllThreadIds();
System.out.println("ThreadGroup: " + activeCount + " active thread(s)");
System.out.println("Thread: " + stackTraces.size() + " stack trace(s) returned");
System.out.println("ThreadMXBean: " + threadCount + " live threads(s)");
System.out.println("ThreadMXBean: " + threadIds.length + " thread Id(s)");
// check results are consistent
boolean failed = false;
if (activeCount != stackTraces.size()) failed = true;
if (activeCount != threadCount) failed = true;
if (activeCount != threadIds.length) failed = true;
if (failed) {
throw new RuntimeException("inconsistent results");
}
}
Example 15
| Source File: ThreadLists.java From dragonwell8_jdk with GNU General Public License v2.0 | 5 votes |
|
public static void main(String args[]) {
// get top-level thread group
ThreadGroup top = Thread.currentThread().getThreadGroup();
ThreadGroup parent;
do {
parent = top.getParent();
if (parent != null) top = parent;
} while (parent != null);
// get the thread count
int activeCount = top.activeCount();
Map<Thread, StackTraceElement[]> stackTraces = Thread.getAllStackTraces();
ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
int threadCount = threadBean.getThreadCount();
long[] threadIds = threadBean.getAllThreadIds();
System.out.println("ThreadGroup: " + activeCount + " active thread(s)");
System.out.println("Thread: " + stackTraces.size() + " stack trace(s) returned");
System.out.println("ThreadMXBean: " + threadCount + " live threads(s)");
System.out.println("ThreadMXBean: " + threadIds.length + " thread Id(s)");
// check results are consistent
boolean failed = false;
if (activeCount != stackTraces.size()) failed = true;
if (activeCount != threadCount) failed = true;
if (activeCount != threadIds.length) failed = true;
if (failed) {
throw new RuntimeException("inconsistent results");
}
}
Example 16
| Source File: ServerStatus.java From hop with Apache License 2.0 | 5 votes |
|
public ServerStatus() {
OperatingSystemMXBean operatingSystemMXBean =
java.lang.management.ManagementFactory.getOperatingSystemMXBean();
ThreadMXBean threadMXBean = java.lang.management.ManagementFactory.getThreadMXBean();
RuntimeMXBean runtimeMXBean = java.lang.management.ManagementFactory.getRuntimeMXBean();
int cores = Runtime.getRuntime().availableProcessors();
long freeMemory = Runtime.getRuntime().freeMemory();
long totalMemory = Runtime.getRuntime().totalMemory();
String osArch = operatingSystemMXBean.getArch();
String osName = operatingSystemMXBean.getName();
String osVersion = operatingSystemMXBean.getVersion();
double loadAvg = operatingSystemMXBean.getSystemLoadAverage();
int threadCount = threadMXBean.getThreadCount();
long allThreadsCpuTime = 0L;
long[] threadIds = threadMXBean.getAllThreadIds();
for ( int i = 0; i < threadIds.length; i++ ) {
allThreadsCpuTime += threadMXBean.getThreadCpuTime( threadIds[ i ] );
}
long uptime = runtimeMXBean.getUptime();
setCpuCores( cores );
setCpuProcessTime( allThreadsCpuTime );
setUptime( uptime );
setThreadCount( threadCount );
setLoadAvg( loadAvg );
setOsName( osName );
setOsVersion( osVersion );
setOsArchitecture( osArch );
setMemoryFree( freeMemory );
setMemoryTotal( totalMemory );
}
Example 17
| Source File: ServerStatus.java From pentaho-kettle with Apache License 2.0 | 5 votes |
|
public ServerStatus() {
OperatingSystemMXBean operatingSystemMXBean =
java.lang.management.ManagementFactory.getOperatingSystemMXBean();
ThreadMXBean threadMXBean = java.lang.management.ManagementFactory.getThreadMXBean();
RuntimeMXBean runtimeMXBean = java.lang.management.ManagementFactory.getRuntimeMXBean();
int cores = Runtime.getRuntime().availableProcessors();
long freeMemory = Runtime.getRuntime().freeMemory();
long totalMemory = Runtime.getRuntime().totalMemory();
String osArch = operatingSystemMXBean.getArch();
String osName = operatingSystemMXBean.getName();
String osVersion = operatingSystemMXBean.getVersion();
double loadAvg = operatingSystemMXBean.getSystemLoadAverage();
int threadCount = threadMXBean.getThreadCount();
long allThreadsCpuTime = 0L;
long[] threadIds = threadMXBean.getAllThreadIds();
for ( int i = 0; i < threadIds.length; i++ ) {
allThreadsCpuTime += threadMXBean.getThreadCpuTime( threadIds[i] );
}
long uptime = runtimeMXBean.getUptime();
setCpuCores( cores );
setCpuProcessTime( allThreadsCpuTime );
setUptime( uptime );
setThreadCount( threadCount );
setLoadAvg( loadAvg );
setOsName( osName );
setOsVersion( osVersion );
setOsArchitecture( osArch );
setMemoryFree( freeMemory );
setMemoryTotal( totalMemory );
}
Example 18
| Source File: Performance.java From bidder with Apache License 2.0 | 4 votes |
|
/**
* Returns the number of threads.
*
* @return int. The number of threads in this process
*/
public static int getThreadCount() {
ThreadMXBean threadMXBean = java.lang.management.ManagementFactory.getThreadMXBean();
return threadMXBean.getThreadCount();
}
Example 19
| Source File: JavaInformations.java From javamelody with Apache License 2.0 | 4 votes |
|
public JavaInformations(ServletContext servletContext, boolean includeDetails) {
// CHECKSTYLE:ON
super();
memoryInformations = new MemoryInformations();
tomcatInformationsList = TomcatInformations.buildTomcatInformationsList();
sessionCount = SessionListener.getSessionCount();
sessionAgeSum = SessionListener.getSessionAgeSum();
activeThreadCount = JdbcWrapper.getActiveThreadCount();
usedConnectionCount = JdbcWrapper.getUsedConnectionCount();
activeConnectionCount = JdbcWrapper.getActiveConnectionCount();
maxConnectionCount = JdbcWrapper.getMaxConnectionCount();
transactionCount = JdbcWrapper.getTransactionCount();
systemLoadAverage = buildSystemLoadAverage();
systemCpuLoad = buildSystemCpuLoad();
processCpuTimeMillis = buildProcessCpuTimeMillis();
unixOpenFileDescriptorCount = buildOpenFileDescriptorCount();
unixMaxFileDescriptorCount = buildMaxFileDescriptorCount();
host = Parameters.getHostName() + '@' + Parameters.getHostAddress();
os = buildOS();
availableProcessors = Runtime.getRuntime().availableProcessors();
javaVersion = System.getProperty("java.runtime.name") + ", "
+ System.getProperty("java.runtime.version");
jvmVersion = System.getProperty("java.vm.name") + ", "
+ System.getProperty("java.vm.version") + ", " + System.getProperty("java.vm.info");
if (servletContext == null) {
serverInfo = null;
contextPath = null;
contextDisplayName = null;
webappVersion = null;
} else {
serverInfo = servletContext.getServerInfo();
contextPath = Parameters.getContextPath(servletContext);
contextDisplayName = servletContext.getServletContextName();
webappVersion = MavenArtifact.getWebappVersion();
}
startDate = START_DATE;
jvmArguments = buildJvmArguments();
final ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
threadCount = threadBean.getThreadCount();
peakThreadCount = threadBean.getPeakThreadCount();
totalStartedThreadCount = threadBean.getTotalStartedThreadCount();
freeDiskSpaceInTemp = Parameters.TEMPORARY_DIRECTORY.getFreeSpace();
usableDiskSpaceInTemp = Parameters.TEMPORARY_DIRECTORY.getUsableSpace();
springBeanExists = SPRING_AVAILABLE && SpringContext.getSingleton() != null;
if (includeDetails) {
dataBaseVersion = buildDataBaseVersion();
dataSourceDetails = buildDataSourceDetails();
threadInformationsList = buildThreadInformationsList();
cacheInformationsList = CacheInformations.buildCacheInformationsList();
jcacheInformationsList = JCacheInformations.buildJCacheInformationsList();
jobInformationsList = JobInformations.buildJobInformationsList();
hsErrPidList = HsErrPid.buildHsErrPidList();
pid = PID.getPID();
} else {
dataBaseVersion = null;
dataSourceDetails = null;
threadInformationsList = null;
cacheInformationsList = null;
jcacheInformationsList = null;
jobInformationsList = null;
hsErrPidList = null;
pid = null;
}
}
Example 20
| Source File: JmxInfoProviderSupport.java From ibm-cos-sdk-java with Apache License 2.0 | 4 votes |
|
@Override
public int getThreadCount() {
ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
return threadMXBean.getThreadCount();
}
