Examples with ThreadInfo java.lang.management.ThreadInfo used on opensource projects

Example 61 with ThreadInfo

use of java.lang.management.ThreadInfo in project jvm-tools by aragozin.

the class MBeanCpuUsageReporter method probe.

public void probe() {
    try {
        long[] ids = mbean.getAllThreadIds();
        ThreadInfo[] ti = mbean.getThreadInfo(ids);
        Map<Long, ThreadInfo> buf = new HashMap<Long, ThreadInfo>();
        for (ThreadInfo t : ti) {
            if (t != null) {
                buf.put(t.getThreadId(), t);
            }
        }
        for (Long key : threadDump.keySet()) {
            ThreadTrac tt = threadDump.get(key);
            ThreadInfo t = buf.remove(key);
            if (t != null) {
                tt.name = t.getThreadName();
                tt.lastThreadInfo = t;
            } else {
                tt.dead = true;
            }
        }
        for (ThreadInfo t : buf.values()) {
            ThreadTrac tt = new ThreadTrac();
            tt.name = t.getThreadName();
            tt.lastThreadInfo = t;
            threadDump.put(t.getThreadId(), tt);
        }
        if (threadAllocatedMemoryEnabled) {
            long[] alloc = ((ThreadMXBeanEx) mbean).getThreadAllocatedBytes(ids);
            for (int i = 0; i != ids.length; ++i) {
                if (threadDump.get(ids[i]) == null) {
                    continue;
                }
                threadDump.get(ids[i]).lastAllocatedBytes = alloc[i];
            }
        }
        if (bulkCpuEnabled) {
            long[] cpu = ((ThreadMXBeanEx) mbean).getThreadCpuTime(ids);
            long[] usr = ((ThreadMXBeanEx) mbean).getThreadUserTime(ids);
            for (int i = 0; i != ids.length; ++i) {
                if (threadDump.get(ids[i]) == null) {
                    continue;
                }
                threadDump.get(ids[i]).lastCpuTime = cpu[i];
                threadDump.get(ids[i]).lastUserTime = usr[i];
            }
        } else {
            for (long id : ids) {
                if (threadDump.get(id) == null) {
                    continue;
                }
                ThreadTrac tt = threadDump.get(id);
                tt.lastCpuTime = mbean.getThreadCpuTime(id);
                tt.lastUserTime = mbean.getThreadCpuTime(id);
            }
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

Example 62 with ThreadInfo

use of java.lang.management.ThreadInfo in project jvm-tools by aragozin.

the class ThreadStackSampler method prime.

public void prime() {
    ThreadInfo[] ti = threading.dumpAllThreads(false, false);
    long[] tids = new long[ti.length];
    int n = 0;
    for (ThreadInfo t : ti) {
        long tid = t.getThreadId();
        String name = t.getThreadName();
        if (threadFilter == null || threadFilter.matcher(name).matches()) {
            tids[n++] = tid;
        }
    }
    tids = Arrays.copyOf(tids, n);
    threadSet = tids;
}

Example 63 with ThreadInfo

use of java.lang.management.ThreadInfo in project jvm-tools by aragozin.

the class ThreadStackSampler method collect.

public void collect() {
    long timestamp = System.currentTimeMillis();
    ThreadInfo[] dump = threading.getThreadInfo(threadSet, Integer.MAX_VALUE);
    for (ThreadInfo ti : dump) {
        Trace trace = newTrace(timestamp, ti);
        if (trace != null) {
            traces.add(trace);
        }
    }
}

Example 64 with ThreadInfo

use of java.lang.management.ThreadInfo in project jvm-tools by aragozin.

the class ThreadDumpSampler method compactThreads.

private ThreadInfo[] compactThreads(ThreadInfo[] dumpAllThreads) {
    int n = 0;
    for (int i = 0; i != dumpAllThreads.length; ++i) {
        if (dumpAllThreads[i] != null) {
            ++n;
        }
    }
    if (n == dumpAllThreads.length) {
        return dumpAllThreads;
    } else {
        ThreadInfo[] result = new ThreadInfo[n];
        n = 0;
        for (ThreadInfo ti : dumpAllThreads) {
            if (ti != null) {
                result[n++] = ti;
            }
        }
        return result;
    }
}

Example 65 with ThreadInfo

use of java.lang.management.ThreadInfo in project jvm-tools by aragozin.

the class ThreadDumpSampler method filterThreads.

private ThreadInfo[] filterThreads(ThreadInfo[] dumpAllThreads) {
    if (threadFilter == null) {
        return compactThreads(dumpAllThreads);
    } else {
        Matcher m = threadFilter.matcher("");
        int n = 0;
        for (int i = 0; i != dumpAllThreads.length; ++i) {
            if (dumpAllThreads[i] != null) {
                m.reset(dumpAllThreads[i].getThreadName());
                if (m.matches()) {
                    ++n;
                } else {
                    dumpAllThreads[i] = null;
                }
            }
        }
        if (n == dumpAllThreads.length) {
            return dumpAllThreads;
        } else {
            ThreadInfo[] result = new ThreadInfo[n];
            n = 0;
            for (ThreadInfo ti : dumpAllThreads) {
                if (ti != null) {
                    result[n++] = ti;
                }
            }
            return result;
        }
    }
}