Java Code Examples for java.lang.management.ThreadMXBean#isThreadCpuTimeSupported()
The following examples show how to use
java.lang.management.ThreadMXBean#isThreadCpuTimeSupported() .
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Example 1
| Source File: JvmThreadInstanceEntryImpl.java From openjdk-8-source with GNU General Public License v2.0 | 6 votes |
|
/**
* Getter for the "JvmThreadInstCpuTimeNs" variable.
*/
public Long getJvmThreadInstCpuTimeNs() throws SnmpStatusException {
long l = 0;
final ThreadMXBean tmb = JvmThreadingImpl.getThreadMXBean();
try {
if (tmb.isThreadCpuTimeSupported()) {
l = tmb.getThreadCpuTime(info.getThreadId());
log.debug("getJvmThreadInstCpuTimeNs", "Cpu time ns : " + l);
//Cpu time measurement is disabled or the id is not valid.
if(l == -1) l = 0;
}
} catch (UnsatisfiedLinkError e) {
// XXX Revisit: catch TO BE EVENTUALLY REMOVED
log.debug("getJvmThreadInstCpuTimeNs",
"Operation not supported: " + e);
}
return new Long(l);
}
Example 2
| Source File: JvmThreadInstanceEntryImpl.java From jdk8u-jdk with GNU General Public License v2.0 | 6 votes |
|
/**
* Getter for the "JvmThreadInstCpuTimeNs" variable.
*/
public Long getJvmThreadInstCpuTimeNs() throws SnmpStatusException {
long l = 0;
final ThreadMXBean tmb = JvmThreadingImpl.getThreadMXBean();
try {
if (tmb.isThreadCpuTimeSupported()) {
l = tmb.getThreadCpuTime(info.getThreadId());
log.debug("getJvmThreadInstCpuTimeNs", "Cpu time ns : " + l);
//Cpu time measurement is disabled or the id is not valid.
if(l == -1) l = 0;
}
} catch (UnsatisfiedLinkError e) {
// XXX Revisit: catch TO BE EVENTUALLY REMOVED
log.debug("getJvmThreadInstCpuTimeNs",
"Operation not supported: " + e);
}
return new Long(l);
}
Example 3
| Source File: JvmThreadInstanceEntryImpl.java From openjdk-8 with GNU General Public License v2.0 | 6 votes |
|
/**
* Getter for the "JvmThreadInstCpuTimeNs" variable.
*/
public Long getJvmThreadInstCpuTimeNs() throws SnmpStatusException {
long l = 0;
final ThreadMXBean tmb = JvmThreadingImpl.getThreadMXBean();
try {
if (tmb.isThreadCpuTimeSupported()) {
l = tmb.getThreadCpuTime(info.getThreadId());
log.debug("getJvmThreadInstCpuTimeNs", "Cpu time ns : " + l);
//Cpu time measurement is disabled or the id is not valid.
if(l == -1) l = 0;
}
} catch (UnsatisfiedLinkError e) {
// XXX Revisit: catch TO BE EVENTUALLY REMOVED
log.debug("getJvmThreadInstCpuTimeNs",
"Operation not supported: " + e);
}
return new Long(l);
}
Example 4
| Source File: GetInternalThreads.java From openjdk-8 with GNU General Public License v2.0 | 6 votes |
|
public static void main(String[] args) throws Exception {
long value = mbean.getInternalThreadCount();
if (value < MIN_VALUE_FOR_PASS || value > MAX_VALUE_FOR_PASS) {
throw new RuntimeException("Internal thread count " +
"illegal value: " + value + " " +
"(MIN = " + MIN_VALUE_FOR_PASS + "; " +
"MAX = " + MAX_VALUE_FOR_PASS + ")");
}
System.out.println("Internal Thread Count = " + value);
ThreadMXBean thread =
ManagementFactory.getThreadMXBean();
if (!thread.isThreadCpuTimeSupported()) {
System.out.println("Thread Cpu Time is not supported.");
return;
}
while(!testCPUTime()) {
Thread.sleep(100);
}
}
Example 5
| Source File: JvmThreadInstanceEntryImpl.java From jdk8u-jdk with GNU General Public License v2.0 | 6 votes |
|
/**
* Getter for the "JvmThreadInstCpuTimeNs" variable.
*/
public Long getJvmThreadInstCpuTimeNs() throws SnmpStatusException {
long l = 0;
final ThreadMXBean tmb = JvmThreadingImpl.getThreadMXBean();
try {
if (tmb.isThreadCpuTimeSupported()) {
l = tmb.getThreadCpuTime(info.getThreadId());
log.debug("getJvmThreadInstCpuTimeNs", "Cpu time ns : " + l);
//Cpu time measurement is disabled or the id is not valid.
if(l == -1) l = 0;
}
} catch (UnsatisfiedLinkError e) {
// XXX Revisit: catch TO BE EVENTUALLY REMOVED
log.debug("getJvmThreadInstCpuTimeNs",
"Operation not supported: " + e);
}
return new Long(l);
}
Example 6
| Source File: GetInternalThreads.java From openjdk-jdk8u with GNU General Public License v2.0 | 6 votes |
|
public static void main(String[] args) throws Exception {
long value = mbean.getInternalThreadCount();
if (value < MIN_VALUE_FOR_PASS || value > MAX_VALUE_FOR_PASS) {
throw new RuntimeException("Internal thread count " +
"illegal value: " + value + " " +
"(MIN = " + MIN_VALUE_FOR_PASS + "; " +
"MAX = " + MAX_VALUE_FOR_PASS + ")");
}
System.out.println("Internal Thread Count = " + value);
ThreadMXBean thread =
ManagementFactory.getThreadMXBean();
if (!thread.isThreadCpuTimeSupported()) {
System.out.println("Thread Cpu Time is not supported.");
return;
}
while(!testCPUTime()) {
Thread.sleep(100);
}
}
Example 7
| Source File: GetInternalThreads.java From openjdk-8-source with GNU General Public License v2.0 | 6 votes |
|
public static void main(String[] args) throws Exception {
long value = mbean.getInternalThreadCount();
if (value < MIN_VALUE_FOR_PASS || value > MAX_VALUE_FOR_PASS) {
throw new RuntimeException("Internal thread count " +
"illegal value: " + value + " " +
"(MIN = " + MIN_VALUE_FOR_PASS + "; " +
"MAX = " + MAX_VALUE_FOR_PASS + ")");
}
System.out.println("Internal Thread Count = " + value);
ThreadMXBean thread =
ManagementFactory.getThreadMXBean();
if (!thread.isThreadCpuTimeSupported()) {
System.out.println("Thread Cpu Time is not supported.");
return;
}
while(!testCPUTime()) {
Thread.sleep(100);
}
}
Example 8
| Source File: GetInternalThreads.java From hottub with GNU General Public License v2.0 | 6 votes |
|
public static void main(String[] args) throws Exception {
long value = mbean.getInternalThreadCount();
if (value < MIN_VALUE_FOR_PASS || value > MAX_VALUE_FOR_PASS) {
throw new RuntimeException("Internal thread count " +
"illegal value: " + value + " " +
"(MIN = " + MIN_VALUE_FOR_PASS + "; " +
"MAX = " + MAX_VALUE_FOR_PASS + ")");
}
System.out.println("Internal Thread Count = " + value);
ThreadMXBean thread =
ManagementFactory.getThreadMXBean();
if (!thread.isThreadCpuTimeSupported()) {
System.out.println("Thread Cpu Time is not supported.");
return;
}
while(!testCPUTime()) {
Thread.sleep(100);
}
}
Example 9
| Source File: ThreadDumpProvider.java From TNT4J with Apache License 2.0 | 6 votes |
|
@Override
public DumpCollection getDump() {
Dump dump = new Dump("JavaThreadStack", this);
ThreadMXBean tmbean = ManagementFactory.getThreadMXBean();
boolean contentionSupported = tmbean.isThreadContentionMonitoringSupported()
&& tmbean.isThreadContentionMonitoringEnabled();
boolean cputSupported = tmbean.isThreadCpuTimeSupported() && tmbean.isThreadCpuTimeEnabled();
dump.add("java.thread.contention.supported", contentionSupported);
dump.add("java.thread.cpu.supported", cputSupported);
long[] dead = tmbean.findMonitorDeadlockedThreads();
dump.add("java.thread.deadlock.count", dead == null ? 0 : dead.length);
long[] tids = tmbean.getAllThreadIds();
ThreadInfo[] tinfos = tmbean.getThreadInfo(tids, Integer.MAX_VALUE);
for (ThreadInfo ti : tinfos) {
dump.add(ti.getThreadName() + "-" + ti.getThreadId(), ti);
}
return dump;
}
Example 10
| Source File: JvmThreadInstanceEntryImpl.java From jdk8u60 with GNU General Public License v2.0 | 6 votes |
|
/**
* Getter for the "JvmThreadInstCpuTimeNs" variable.
*/
public Long getJvmThreadInstCpuTimeNs() throws SnmpStatusException {
long l = 0;
final ThreadMXBean tmb = JvmThreadingImpl.getThreadMXBean();
try {
if (tmb.isThreadCpuTimeSupported()) {
l = tmb.getThreadCpuTime(info.getThreadId());
log.debug("getJvmThreadInstCpuTimeNs", "Cpu time ns : " + l);
//Cpu time measurement is disabled or the id is not valid.
if(l == -1) l = 0;
}
} catch (UnsatisfiedLinkError e) {
// XXX Revisit: catch TO BE EVENTUALLY REMOVED
log.debug("getJvmThreadInstCpuTimeNs",
"Operation not supported: " + e);
}
return new Long(l);
}
Example 11
| Source File: JvmThreadingImpl.java From hottub with GNU General Public License v2.0 | 5 votes |
|
/**
* Getter for the "JvmThreadCpuTimeMonitoring" variable.
*/
public EnumJvmThreadCpuTimeMonitoring getJvmThreadCpuTimeMonitoring()
throws SnmpStatusException {
ThreadMXBean mbean = getThreadMXBean();
if(!mbean.isThreadCpuTimeSupported()) {
log.debug("getJvmThreadCpuTimeMonitoring",
"Unsupported ThreadCpuTimeMonitoring");
return JvmThreadCpuTimeMonitoringUnsupported;
}
try {
if(mbean.isThreadCpuTimeEnabled()) {
log.debug("getJvmThreadCpuTimeMonitoring",
"Enabled ThreadCpuTimeMonitoring");
return JvmThreadCpuTimeMonitoringEnabled;
} else {
log.debug("getJvmThreadCpuTimeMonitoring",
"Disabled ThreadCpuTimeMonitoring");
return JvmThreadCpuTimeMonitoringDisabled;
}
}catch(UnsupportedOperationException e) {
log.debug("getJvmThreadCpuTimeMonitoring",
"Newly unsupported ThreadCpuTimeMonitoring");
return JvmThreadCpuTimeMonitoringUnsupported;
}
}
Example 12
| Source File: JvmThreadingImpl.java From openjdk-8-source with GNU General Public License v2.0 | 5 votes |
|
/**
* Checker for the "JvmThreadCpuTimeMonitoring" variable.
*/
public void checkJvmThreadCpuTimeMonitoring(EnumJvmThreadCpuTimeMonitoring
x)
throws SnmpStatusException {
//Can't be set externaly to unsupported state.
if(JvmThreadCpuTimeMonitoringUnsupported.intValue() == x.intValue()) {
log.debug("checkJvmThreadCpuTimeMonitoring",
"Try to set to illegal unsupported value");
throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
}
if ((JvmThreadCpuTimeMonitoringEnabled.intValue() == x.intValue()) ||
(JvmThreadCpuTimeMonitoringDisabled.intValue() == x.intValue())) {
// The value is a valid value. But is the feature supported?
ThreadMXBean mbean = getThreadMXBean();
if(mbean.isThreadCpuTimeSupported()) return;
// Not supported.
log.debug("checkJvmThreadCpuTimeMonitoring",
"Unsupported operation, can't set state");
throw new
SnmpStatusException(SnmpDefinitions.snmpRspInconsistentValue);
}
// Unknown value.
log.debug("checkJvmThreadCpuTimeMonitoring",
"unknown enum value ");
throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
}
Example 13
| Source File: InvalidThreadID.java From jdk8u60 with GNU General Public License v2.0 | 5 votes |
|
public static void main(String argv[]) {
ThreadMXBean mbean = ManagementFactory.getThreadMXBean();
int cnt = 0;
long [] idArr = {0, -1, -2, (Long.MIN_VALUE + 1), Long.MIN_VALUE};
if (mbean.isThreadCpuTimeSupported()) {
for (int i = 0; i < idArr.length; i++) {
try {
mbean.getThreadCpuTime(idArr[i]);
System.out.println("Test failed. IllegalArgumentException" +
" expected for ID = " + idArr[i]);
} catch (IllegalArgumentException iae) {
cnt++;
}
}
if (cnt != idArr.length) {
throw new RuntimeException("Unexpected number of " +
"IllegalArgumentException = " + cnt +
" expected = " + idArr.length);
}
// CPU time for a non-existence thread
long time = mbean.getThreadCpuTime(999999);
if (time < 0 && time != -1) {
throw new RuntimeException("Cpu time for thread 999999" +
" is invalid = " + time + " expected to be -1.");
}
}
System.out.println("Test passed.");
}
Example 14
| Source File: JvmThreadingImpl.java From jdk8u60 with GNU General Public License v2.0 | 5 votes |
|
/**
* Checker for the "JvmThreadCpuTimeMonitoring" variable.
*/
public void checkJvmThreadCpuTimeMonitoring(EnumJvmThreadCpuTimeMonitoring
x)
throws SnmpStatusException {
//Can't be set externaly to unsupported state.
if(JvmThreadCpuTimeMonitoringUnsupported.intValue() == x.intValue()) {
log.debug("checkJvmThreadCpuTimeMonitoring",
"Try to set to illegal unsupported value");
throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
}
if ((JvmThreadCpuTimeMonitoringEnabled.intValue() == x.intValue()) ||
(JvmThreadCpuTimeMonitoringDisabled.intValue() == x.intValue())) {
// The value is a valid value. But is the feature supported?
ThreadMXBean mbean = getThreadMXBean();
if(mbean.isThreadCpuTimeSupported()) return;
// Not supported.
log.debug("checkJvmThreadCpuTimeMonitoring",
"Unsupported operation, can't set state");
throw new
SnmpStatusException(SnmpDefinitions.snmpRspInconsistentValue);
}
// Unknown value.
log.debug("checkJvmThreadCpuTimeMonitoring",
"unknown enum value ");
throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
}
Example 15
| Source File: JvmThreadingImpl.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 5 votes |
|
/**
* Checker for the "JvmThreadCpuTimeMonitoring" variable.
*/
public void checkJvmThreadCpuTimeMonitoring(EnumJvmThreadCpuTimeMonitoring
x)
throws SnmpStatusException {
//Can't be set externaly to unsupported state.
if(JvmThreadCpuTimeMonitoringUnsupported.intValue() == x.intValue()) {
log.debug("checkJvmThreadCpuTimeMonitoring",
"Try to set to illegal unsupported value");
throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
}
if ((JvmThreadCpuTimeMonitoringEnabled.intValue() == x.intValue()) ||
(JvmThreadCpuTimeMonitoringDisabled.intValue() == x.intValue())) {
// The value is a valid value. But is the feature supported?
ThreadMXBean mbean = getThreadMXBean();
if(mbean.isThreadCpuTimeSupported()) return;
// Not supported.
log.debug("checkJvmThreadCpuTimeMonitoring",
"Unsupported operation, can't set state");
throw new
SnmpStatusException(SnmpDefinitions.snmpRspInconsistentValue);
}
// Unknown value.
log.debug("checkJvmThreadCpuTimeMonitoring",
"unknown enum value ");
throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
}
Example 16
| Source File: InvalidThreadID.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 5 votes |
|
public static void main(String argv[]) {
ThreadMXBean mbean = ManagementFactory.getThreadMXBean();
int cnt = 0;
long [] idArr = {0, -1, -2, (Long.MIN_VALUE + 1), Long.MIN_VALUE};
if (mbean.isThreadCpuTimeSupported()) {
for (int i = 0; i < idArr.length; i++) {
try {
mbean.getThreadCpuTime(idArr[i]);
System.out.println("Test failed. IllegalArgumentException" +
" expected for ID = " + idArr[i]);
} catch (IllegalArgumentException iae) {
cnt++;
}
}
if (cnt != idArr.length) {
throw new RuntimeException("Unexpected number of " +
"IllegalArgumentException = " + cnt +
" expected = " + idArr.length);
}
// CPU time for a non-existence thread
long time = mbean.getThreadCpuTime(999999);
if (time < 0 && time != -1) {
throw new RuntimeException("Cpu time for thread 999999" +
" is invalid = " + time + " expected to be -1.");
}
}
System.out.println("Test passed.");
}
Example 17
| Source File: JvmThreadingImpl.java From openjdk-8 with GNU General Public License v2.0 | 5 votes |
|
/**
* Checker for the "JvmThreadCpuTimeMonitoring" variable.
*/
public void checkJvmThreadCpuTimeMonitoring(EnumJvmThreadCpuTimeMonitoring
x)
throws SnmpStatusException {
//Can't be set externaly to unsupported state.
if(JvmThreadCpuTimeMonitoringUnsupported.intValue() == x.intValue()) {
log.debug("checkJvmThreadCpuTimeMonitoring",
"Try to set to illegal unsupported value");
throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
}
if ((JvmThreadCpuTimeMonitoringEnabled.intValue() == x.intValue()) ||
(JvmThreadCpuTimeMonitoringDisabled.intValue() == x.intValue())) {
// The value is a valid value. But is the feature supported?
ThreadMXBean mbean = getThreadMXBean();
if(mbean.isThreadCpuTimeSupported()) return;
// Not supported.
log.debug("checkJvmThreadCpuTimeMonitoring",
"Unsupported operation, can't set state");
throw new
SnmpStatusException(SnmpDefinitions.snmpRspInconsistentValue);
}
// Unknown value.
log.debug("checkJvmThreadCpuTimeMonitoring",
"unknown enum value ");
throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
}
Example 18
| Source File: JvmThreadingImpl.java From dragonwell8_jdk with GNU General Public License v2.0 | 5 votes |
|
/**
* Getter for the "JvmThreadCpuTimeMonitoring" variable.
*/
public EnumJvmThreadCpuTimeMonitoring getJvmThreadCpuTimeMonitoring()
throws SnmpStatusException {
ThreadMXBean mbean = getThreadMXBean();
if(!mbean.isThreadCpuTimeSupported()) {
log.debug("getJvmThreadCpuTimeMonitoring",
"Unsupported ThreadCpuTimeMonitoring");
return JvmThreadCpuTimeMonitoringUnsupported;
}
try {
if(mbean.isThreadCpuTimeEnabled()) {
log.debug("getJvmThreadCpuTimeMonitoring",
"Enabled ThreadCpuTimeMonitoring");
return JvmThreadCpuTimeMonitoringEnabled;
} else {
log.debug("getJvmThreadCpuTimeMonitoring",
"Disabled ThreadCpuTimeMonitoring");
return JvmThreadCpuTimeMonitoringDisabled;
}
}catch(UnsupportedOperationException e) {
log.debug("getJvmThreadCpuTimeMonitoring",
"Newly unsupported ThreadCpuTimeMonitoring");
return JvmThreadCpuTimeMonitoringUnsupported;
}
}
Example 19
| Source File: InvalidThreadID.java From hottub with GNU General Public License v2.0 | 5 votes |
|
public static void main(String argv[]) {
ThreadMXBean mbean = ManagementFactory.getThreadMXBean();
int cnt = 0;
long [] idArr = {0, -1, -2, (Long.MIN_VALUE + 1), Long.MIN_VALUE};
if (mbean.isThreadCpuTimeSupported()) {
for (int i = 0; i < idArr.length; i++) {
try {
mbean.getThreadCpuTime(idArr[i]);
System.out.println("Test failed. IllegalArgumentException" +
" expected for ID = " + idArr[i]);
} catch (IllegalArgumentException iae) {
cnt++;
}
}
if (cnt != idArr.length) {
throw new RuntimeException("Unexpected number of " +
"IllegalArgumentException = " + cnt +
" expected = " + idArr.length);
}
// CPU time for a non-existence thread
long time = mbean.getThreadCpuTime(999999);
if (time < 0 && time != -1) {
throw new RuntimeException("Cpu time for thread 999999" +
" is invalid = " + time + " expected to be -1.");
}
}
System.out.println("Test passed.");
}
Example 20
| Source File: JavaInformations.java From javamelody with Apache License 2.0 | 4 votes |
|
public static List<ThreadInformations> buildThreadInformationsList() {
final ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
final Map<Thread, StackTraceElement[]> stackTraces = Thread.getAllStackTraces();
final List<Thread> threads = new ArrayList<Thread>(stackTraces.keySet());
// si "1.6.0_01".compareTo(Parameters.JAVA_VERSION) > 0;
// on récupèrait les threads sans stack trace en contournant bug 6434648 avant 1.6.0_01
// http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6434648
// hormis pour le thread courant qui obtient sa stack trace différemment sans le bug
// threads = getThreadsFromThreadGroups();
// final Thread currentThread = Thread.currentThread();
// stackTraces = Collections.singletonMap(currentThread, currentThread.getStackTrace());
final boolean cpuTimeEnabled = threadBean.isThreadCpuTimeSupported()
&& threadBean.isThreadCpuTimeEnabled();
final long[] deadlockedThreads = getDeadlockedThreads(threadBean);
final List<ThreadInformations> threadInfosList = new ArrayList<ThreadInformations>(
threads.size());
// hostAddress récupéré ici car il peut y avoir plus de 20000 threads
final String hostAddress = Parameters.getHostAddress();
for (final Thread thread : threads) {
final StackTraceElement[] stackTraceElements = stackTraces.get(thread);
final List<StackTraceElement> stackTraceElementList = stackTraceElements == null ? null
: new ArrayList<StackTraceElement>(Arrays.asList(stackTraceElements));
final long cpuTimeMillis;
final long userTimeMillis;
if (cpuTimeEnabled) {
cpuTimeMillis = threadBean.getThreadCpuTime(thread.getId()) / 1000000;
userTimeMillis = threadBean.getThreadUserTime(thread.getId()) / 1000000;
} else {
cpuTimeMillis = -1;
userTimeMillis = -1;
}
final boolean deadlocked = deadlockedThreads != null
&& Arrays.binarySearch(deadlockedThreads, thread.getId()) >= 0;
// stackTraceElementList est une ArrayList et non unmodifiableList pour lisibilité xml
threadInfosList.add(new ThreadInformations(thread, stackTraceElementList, cpuTimeMillis,
userTimeMillis, deadlocked, hostAddress));
}
// on retourne ArrayList et non unmodifiableList pour lisibilité du xml par xstream
return threadInfosList;
}
