Java Code Examples for jdk.jfr.Configuration#getConfiguration()

The following examples show how to use jdk.jfr.Configuration#getConfiguration() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: TestCreateNative.java From dragonwell8_jdk with GNU General Public License v2.0

6 votes

public static void main(String... args) throws Exception {
    JVM jvm = JVM.getJVM();
    // Ensure that repeated failures can be handled
    for (int i = 1; i < 4; i++) {
        System.out.println("About to try failed initialization, attempt " + i + " out of 3");
        assertFailedInitialization(jvm);
        System.out.println("As expected, initialization failed.");
    }
    // Ensure that Flight Recorder can be initialized properly after failures
    Configuration defConfig = Configuration.getConfiguration("default");
    Recording r = new Recording(defConfig);
    r.start();
    r.stop();
    r.dump(Paths.get("recording.jfr"));
    r.close();
}

Example 2

Source File: TestStartStopRecording.java From openjdk-jdk8u with GNU General Public License v2.0

6 votes

public static void main(String... args) throws Exception {
    Configuration defaultConfig = Configuration.getConfiguration("default");
    // Memory
    Recording inMemory = new Recording(defaultConfig);
    inMemory.setToDisk(false);

    inMemory.start();

    Path memoryFile = Utils.createTempFile("start-stop-memory-recording", ".jfr");
    inMemory.dump(memoryFile);
    assertValid(memoryFile, "Not a valid memory file.");
    inMemory.stop();
    inMemory.close();
    // Disk
    Recording toDisk = new Recording(defaultConfig);
    toDisk.setToDisk(true);

    toDisk.start();
    toDisk.stop();
    Path diskFile = Utils.createTempFile("start-stop-disk-recording", ".jfr");
    toDisk.dump(diskFile);
    assertValid(diskFile, "Not a valid disk file.");
    toDisk.close();
}

Example 3

Source File: TestRecordingInfo.java From openjdk-jdk8u with GNU General Public License v2.0

6 votes

public static void main(String[] args) throws Throwable {
    Recording recording = new Recording(Configuration.getConfiguration("profile"));
    recording.setDestination(Paths.get(".", "my.jfr"));
    recording.setDumpOnExit(true);
    recording.setDuration(Duration.ofSeconds(60));
    recording.setMaxAge(Duration.ofHours(1));
    recording.setMaxSize(123456789);
    recording.setName("myName");
    recording.enable("java.exception_throw").with("threashold", "2 s");
    recording.setToDisk(true);

    recording.start();
    CommonHelper.verifyRecordingState(recording, RecordingState.RUNNING); // Wait until running

    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();
    RecordingInfo info = JmxHelper.verifyExists(recording.getId(), bean.getRecordings());

    System.out.println(JmxHelper.asString(recording));
    System.out.println(JmxHelper.asString(info));
    JmxHelper.verifyEquals(info, recording);

    recording.stop();
    recording.close();
}

Example 4

Source File: TestCreateNative.java From openjdk-jdk8u with GNU General Public License v2.0

6 votes

public static void main(String... args) throws Exception {
    JVM jvm = JVM.getJVM();
    // Ensure that repeated failures can be handled
    for (int i = 1; i < 4; i++) {
        System.out.println("About to try failed initialization, attempt " + i + " out of 3");
        assertFailedInitialization(jvm);
        System.out.println("As expected, initialization failed.");
    }
    // Ensure that Flight Recorder can be initialized properly after failures
    Configuration defConfig = Configuration.getConfiguration("default");
    Recording r = new Recording(defConfig);
    r.start();
    r.stop();
    r.dump(Paths.get("recording.jfr"));
    r.close();
}

Example 5

Source File: TestStartStopRecording.java From TencentKona-8 with GNU General Public License v2.0

6 votes

public static void main(String... args) throws Exception {
    Configuration defaultConfig = Configuration.getConfiguration("default");
    // Memory
    Recording inMemory = new Recording(defaultConfig);
    inMemory.setToDisk(false);

    inMemory.start();

    Path memoryFile = Utils.createTempFile("start-stop-memory-recording", ".jfr");
    inMemory.dump(memoryFile);
    assertValid(memoryFile, "Not a valid memory file.");
    inMemory.stop();
    inMemory.close();
    // Disk
    Recording toDisk = new Recording(defaultConfig);
    toDisk.setToDisk(true);

    toDisk.start();
    toDisk.stop();
    Path diskFile = Utils.createTempFile("start-stop-disk-recording", ".jfr");
    toDisk.dump(diskFile);
    assertValid(diskFile, "Not a valid disk file.");
    toDisk.close();
}

Example 6

Source File: TestRecordingInfo.java From TencentKona-8 with GNU General Public License v2.0

6 votes

public static void main(String[] args) throws Throwable {
    Recording recording = new Recording(Configuration.getConfiguration("profile"));
    recording.setDestination(Paths.get(".", "my.jfr"));
    recording.setDumpOnExit(true);
    recording.setDuration(Duration.ofSeconds(60));
    recording.setMaxAge(Duration.ofHours(1));
    recording.setMaxSize(123456789);
    recording.setName("myName");
    recording.enable("java.exception_throw").with("threashold", "2 s");
    recording.setToDisk(true);

    recording.start();
    CommonHelper.verifyRecordingState(recording, RecordingState.RUNNING); // Wait until running

    FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();
    RecordingInfo info = JmxHelper.verifyExists(recording.getId(), bean.getRecordings());

    System.out.println(JmxHelper.asString(recording));
    System.out.println(JmxHelper.asString(info));
    JmxHelper.verifyEquals(info, recording);

    recording.stop();
    recording.close();
}

Example 7

Source File: TestCreateNative.java From TencentKona-8 with GNU General Public License v2.0

6 votes

public static void main(String... args) throws Exception {
    JVM jvm = JVM.getJVM();
    // Ensure that repeated failures can be handled
    for (int i = 1; i < 4; i++) {
        System.out.println("About to try failed initialization, attempt " + i + " out of 3");
        assertFailedInitialization(jvm);
        System.out.println("As expected, initialization failed.");
    }
    // Ensure that Flight Recorder can be initialized properly after failures
    Configuration defConfig = Configuration.getConfiguration("default");
    Recording r = new Recording(defConfig);
    r.start();
    r.stop();
    r.dump(Paths.get("recording.jfr"));
    r.close();
}

Example 8

Source File: TestSplit.java From dragonwell8_jdk with GNU General Public License v2.0

6 votes

private static void makeRecordingWithChunks(int count, Path file) throws IOException, ParseException {
    Recording main = new Recording(Configuration.getConfiguration("default"));
    // default config disable all events, so ...
    main.enable(EventNames.JVMInformation);
    main.setToDisk(true);
    main.start();
    for (int i = 0; i < count; i++) {
        Recording r = new Recording();
        r.setToDisk(true);
        r.start();
        r.stop();
        r.close();
    }
    main.stop();
    main.dump(file);
    main.close();
}

Example 9

Source File: TestStartStopRecording.java From dragonwell8_jdk with GNU General Public License v2.0

6 votes

public static void main(String... args) throws Exception {
    Configuration defaultConfig = Configuration.getConfiguration("default");
    // Memory
    Recording inMemory = new Recording(defaultConfig);
    inMemory.setToDisk(false);

    inMemory.start();

    Path memoryFile = Files.createTempFile("memory-recording", ".jfr");
    inMemory.dump(memoryFile);
    assertValid(memoryFile, "Not a valid memory file.");
    inMemory.stop();
    inMemory.close();
    // Disk
    Recording toDisk = new Recording(defaultConfig);
    toDisk.setToDisk(true);

    toDisk.start();
    toDisk.stop();
    Path diskFile = Files.createTempFile("disk-recording", ".jfr");
    toDisk.dump(diskFile);
    assertValid(diskFile, "Not a valid disk file.");
    toDisk.close();
}

Example 10

Source File: EventEmitterAgent.java From openjdk-jdk8u with GNU General Public License v2.0

6 votes

private static void agentWork() throws Exception {
    try (Recording r = new Recording(Configuration.getConfiguration("default"))) {
        r.enable(EventNames.JavaExceptionThrow);
        r.setDestination(DUMP_PATH);
        r.start();
        Thread[] threads = new Thread[THREADS];
        for (int i = 0; i < THREADS; i++) {
            threads[i] = new Thread(EventEmitterAgent::emitEvents);
            threads[i].start();
        }
        for (int i = 0; i < THREADS; i++) {
            threads[i].join();
        }
        r.stop();
    }
}

Example 11

Source File: ExecuteHelper.java From dragonwell8_jdk with GNU General Public License v2.0

5 votes

public static Path createProfilingRecording() throws Exception {
    Path file = Files.createTempFile("recording", ".jfr");
    // Create a recording with some data
    try (Recording r = new Recording(Configuration.getConfiguration("profile"))) {
        r.start();

        // Allocation event
        array = new Object[1000000];
        array = null;

        // Class loading event etc
        provokeClassLoading();

        // GC events
        System.gc();

        // ExecutionSample
        long t = System.currentTimeMillis();
        while (System.currentTimeMillis() - t < 50) {
            // do nothing
        }

        // Other periodic events, i.e CPU load
        Thread.sleep(1000);

        r.stop();
        r.dump(file);
    }

    return file;
}

Example 12

Source File: TestDisassemble.java From TencentKona-8 with GNU General Public License v2.0

5 votes

private static void makeRecordingWithChunks(int count, Path file) throws IOException, ParseException {
    Recording main = new Recording(Configuration.getConfiguration("default"));
    main.setToDisk(true);
    main.start();
    for (int i = 0; i < count; i++) {
        Recording r = new Recording();
        r.setToDisk(true);
        r.start();
        r.stop();
        r.close();
    }
    main.stop();
    main.dump(file);
    main.close();
}

Example 13

Source File: ExecuteHelper.java From TencentKona-8 with GNU General Public License v2.0

5 votes

public static Path createProfilingRecording() throws Exception {
    Path file = Utils.createTempFile("profiling-recording", ".jfr");
    // Create a recording with some data
    try (Recording r = new Recording(Configuration.getConfiguration("profile"))) {
        r.start();

        // Allocation event
        array = new Object[1000000];
        array = null;

        // Class loading event etc
        provokeClassLoading();

        // GC events
        System.gc();

        // ExecutionSample
        long t = System.currentTimeMillis();
        while (System.currentTimeMillis() - t < 50) {
            // do nothing
        }

        // Other periodic events, i.e CPU load
        Thread.sleep(1000);

        r.stop();
        r.dump(file);
    }

    return file;
}

Example 14

Source File: ExecuteHelper.java From dragonwell8_jdk with GNU General Public License v2.0

5 votes

public static Path createProfilingRecording() throws Exception {
    Path file = Files.createTempFile("recording", ".jfr");
    // Create a recording with some data
    try (Recording r = new Recording(Configuration.getConfiguration("profile"))) {
        r.start();

        // Allocation event
        array = new Object[1000000];
        array = null;

        // Class loading event etc
        provokeClassLoading();

        // GC events
        System.gc();

        // ExecutionSample
        long t = System.currentTimeMillis();
        while (System.currentTimeMillis() - t < 50) {
            // do nothing
        }

        // Other periodic events, i.e CPU load
        Thread.sleep(1000);

        r.stop();
        r.dump(file);
    }

    return file;
}

Example 15

Source File: TestJcmdDumpGeneratedFilename.java From TencentKona-8 with GNU General Public License v2.0

5 votes

public static void main(String[] args) throws Exception {
    // Increase the id for a recording
    for (int i = 0; i < 300; i++) {
        new Recording();
    }
    try (Recording r = new Recording(Configuration.getConfiguration("default"))) {
        r.start();
        r.stop();
        testDumpFilename();
        testDumpFilename(r);
        testDumpDiectory();
        testDumpDiectory(r);
    }
}

Example 16

Source File: TestJcmdDumpGeneratedFilename.java From openjdk-jdk8u with GNU General Public License v2.0

5 votes

public static void main(String[] args) throws Exception {
    // Increase the id for a recording
    for (int i = 0; i < 300; i++) {
        new Recording();
    }
    try (Recording r = new Recording(Configuration.getConfiguration("default"))) {
        r.start();
        r.stop();
        testDumpFilename();
        testDumpFilename(r);
        testDumpDiectory();
        testDumpDiectory(r);
    }
}

Example 17

Source File: TestDisassemble.java From openjdk-jdk8u with GNU General Public License v2.0

5 votes

private static void makeRecordingWithChunks(int count, Path file) throws IOException, ParseException {
    Recording main = new Recording(Configuration.getConfiguration("default"));
    main.setToDisk(true);
    main.start();
    for (int i = 0; i < count; i++) {
        Recording r = new Recording();
        r.setToDisk(true);
        r.start();
        r.stop();
        r.close();
    }
    main.stop();
    main.dump(file);
    main.close();
}

Example 18

Source File: ExecuteHelper.java From openjdk-jdk8u with GNU General Public License v2.0

5 votes

public static Path createProfilingRecording() throws Exception {
    Path file = Utils.createTempFile("profiling-recording", ".jfr");
    // Create a recording with some data
    try (Recording r = new Recording(Configuration.getConfiguration("profile"))) {
        r.start();

        // Allocation event
        array = new Object[1000000];
        array = null;

        // Class loading event etc
        provokeClassLoading();

        // GC events
        System.gc();

        // ExecutionSample
        long t = System.currentTimeMillis();
        while (System.currentTimeMillis() - t < 50) {
            // do nothing
        }

        // Other periodic events, i.e CPU load
        Thread.sleep(1000);

        r.stop();
        r.dump(file);
    }

    return file;
}

Example 19

Source File: TestUnsupportedVM.java From TencentKona-8 with GNU General Public License v2.0

4 votes

public static void main(String... args) throws Exception {
    if (Boolean.getBoolean("prepare-recording")) {
        Recording r = new Recording(Configuration.getConfiguration("default"));
        r.start();
        r.stop();
        r.dump(RECORDING_FILE);
        r.close();
        return;
    }

    System.out.println("jdk.jfr.unsupportedvm=" + System.getProperty("jdk.jfr.unsupportedvm"));
    // Class FlightRecorder
    if (FlightRecorder.isAvailable()) {
        throw new AssertionError("JFR should not be available on an unsupported VM");
    }

    if (FlightRecorder.isInitialized()) {
        throw new AssertionError("JFR should not be initialized on an unsupported VM");
    }

    assertIllegalStateException(() -> FlightRecorder.getFlightRecorder());
    assertSwallow(() -> FlightRecorder.addListener(new FlightRecorderListener() {}));
    assertSwallow(() -> FlightRecorder.removeListener(new FlightRecorderListener() {}));
    assertSwallow(() -> FlightRecorder.register(MyEvent.class));
    assertSwallow(() -> FlightRecorder.unregister(MyEvent.class));
    assertSwallow(() -> FlightRecorder.addPeriodicEvent(MyEvent.class, new Runnable() { public void run() {} }));
    assertSwallow(() -> FlightRecorder.removePeriodicEvent(new Runnable() { public void run() {} }));

    // Class Configuration
    if (!Configuration.getConfigurations().isEmpty()) {
        throw new AssertionError("Configuration files should not exist on an unsupported VM");
    }
    Path jfcFile = Utils.createTempFile("empty", ".jfr");
    assertIOException(() -> Configuration.getConfiguration("default"));
    assertIOException(() -> Configuration.create(jfcFile));
    assertIOException(() -> Configuration.create(new FileReader(jfcFile.toFile())));

    // Class EventType
    assertInternalError(() -> EventType.getEventType(MyEvent.class));

    // Class EventFactory
    assertInternalError(() -> EventFactory.create(new ArrayList<>(), new ArrayList<>()));

    // Create a static event
    MyEvent myEvent = new MyEvent();
    myEvent.begin();
    myEvent.end();
    myEvent.shouldCommit();
    myEvent.commit();

    // Trigger class initialization failure
    for (Class<?> c : APIClasses) {
        assertNoClassInitFailure(c);
    }

    // jdk.jfr.consumer.*
    // Only run this part of tests if we are on VM
    // that can produce a recording file
    if (Files.exists(RECORDING_FILE)) {
        for(RecordedEvent re : RecordingFile.readAllEvents(RECORDING_FILE)) {
            System.out.println(re);
        }
    }
}

Example 20

Source File: TestUnsupportedVM.java From dragonwell8_jdk with GNU General Public License v2.0

4 votes

public static void main(String... args) throws Exception {
    if (Boolean.getBoolean("prepare-recording")) {
        Recording r = new Recording(Configuration.getConfiguration("default"));
        r.start();
        r.stop();
        r.dump(RECORDING_FILE);
        r.close();
        return;
    }

    System.out.println("jdk.jfr.unsupportedvm=" + System.getProperty("jdk.jfr.unsupportedvm"));
    // Class FlightRecorder
    if (FlightRecorder.isAvailable()) {
        throw new AssertionError("JFR should not be available on an unsupported VM");
    }

    if (FlightRecorder.isInitialized()) {
        throw new AssertionError("JFR should not be initialized on an unsupported VM");
    }

    assertIllegalStateException(() -> FlightRecorder.getFlightRecorder());
    assertSwallow(() -> FlightRecorder.addListener(new FlightRecorderListener() {}));
    assertSwallow(() -> FlightRecorder.removeListener(new FlightRecorderListener() {}));
    assertSwallow(() -> FlightRecorder.register(MyEvent.class));
    assertSwallow(() -> FlightRecorder.unregister(MyEvent.class));
    assertSwallow(() -> FlightRecorder.addPeriodicEvent(MyEvent.class, new Runnable() { public void run() {} }));
    assertSwallow(() -> FlightRecorder.removePeriodicEvent(new Runnable() { public void run() {} }));

    // Class Configuration
    if (!Configuration.getConfigurations().isEmpty()) {
        throw new AssertionError("Configuration files should not exist on an unsupported VM");
    }
    Path jfcFile = Files.createTempFile("my", ".jfr");
    assertIOException(() -> Configuration.getConfiguration("default"));
    assertIOException(() -> Configuration.create(jfcFile));
    assertIOException(() -> Configuration.create(new FileReader(jfcFile.toFile())));

    // Class EventType
    assertInternalError(() -> EventType.getEventType(MyEvent.class));

    // Class EventFactory
    assertInternalError(() -> EventFactory.create(new ArrayList<>(), new ArrayList<>()));

    // Create a static event
    MyEvent myEvent = new MyEvent();
    myEvent.begin();
    myEvent.end();
    myEvent.shouldCommit();
    myEvent.commit();

    // Trigger class initialization failure
    for (Class<?> c : APIClasses) {
        assertNoClassInitFailure(c);
    }

    // jdk.jfr.consumer.*
    // Only run this part of tests if we are on VM
    // that can produce a recording file
    if (Files.exists(RECORDING_FILE)) {
        for(RecordedEvent re : RecordingFile.readAllEvents(RECORDING_FILE)) {
            System.out.println(re);
        }
    }
}