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

Example 71 with MemoryUsage

use of java.lang.management.MemoryUsage in project HongsCORE by ihongs.

the class InfoAction method search.

@Action("search")
public void search(ActionHelper helper) throws HongsException {
    Map rsp = new HashMap();
    Map req = helper.getRequestData();
    long now = System.currentTimeMillis();
    Set rb = Synt.toTerms(req.get("rb"));
    // 当前时间
    rsp.put("now_msec", now);
    // 应用信息
    if (rb == null || rb.contains("app_info")) {
        Map app = new HashMap();
        rsp.put("app_info", app);
        long tim = Core.STARTS_TIME;
        app.put("server_id", Core.SERVER_ID);
        app.put("base_href", Core.BASE_HREF);
        app.put("base_path", Core.BASE_PATH);
        app.put("open_time", tim);
        app.put("live_time", Tool.humanTime(now - tim));
    }
    // 系统信息
    if (rb == null || rb.contains("sys_info")) {
        Map inf = new HashMap();
        rsp.put("sys_info", inf);
        Properties pps = System.getProperties();
        inf.put("name", pps.getProperty("os.name"));
        inf.put("arch", pps.getProperty("os.arch"));
        inf.put("vers", pps.getProperty("os.version"));
        inf.put("user", pps.getProperty("user.name"));
        inf.put("java", pps.getProperty("java.version"));
        try {
            InetAddress hst = InetAddress.getLocalHost();
            inf.put("addr", hst.getHostAddress());
            inf.put("host", hst.getHostName());
        } catch (UnknownHostException e) {
        // Nothing todo.
        }
    }
    // 运行信息
    if (rb == null || rb.contains("run_info")) {
        OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
        MemoryMXBean mm = ManagementFactory.getMemoryMXBean();
        MemoryUsage nm = mm.getNonHeapMemoryUsage();
        MemoryUsage hm = mm.getHeapMemoryUsage();
        Runtime rt = Runtime.getRuntime();
        double avg = os.getSystemLoadAverage();
        long siz = rt.totalMemory();
        long fre = rt.freeMemory();
        long max = rt.maxMemory();
        long stk = nm.getUsed();
        long use = hm.getUsed();
        Map inf = new HashMap();
        rsp.put("run_info", inf);
        inf.put("load", new Object[] { avg, String.valueOf(avg), "负载" });
        inf.put("size", new Object[] { siz, Tool.humanSize(max), "全部" });
        inf.put("free", new Object[] { fre, Tool.humanSize(fre), "空闲" });
        inf.put("dist", new Object[] { max, Tool.humanSize(fre), "可用" });
        inf.put("used", new Object[] { use, Tool.humanSize(use), "已用" });
        inf.put("uses", new Object[] { stk, Tool.humanSize(stk), "非堆" });
    }
    // 磁盘情况
    if (rb == null || rb.contains("dir_info")) {
        rsp.put("base_dir", getAllSize(new File(Core.BASE_PATH)));
        rsp.put("data_dir", getAllSize(new File(Core.DATA_PATH)));
        rsp.put("conf_dir", getAllSize(new File(Core.CONF_PATH)));
        rsp.put("core_dir", getAllSize(new File(Core.CORE_PATH)));
    }
    /**
     * 公共核心情况和锁情况
     */
    if (rb != null && rb.contains("core_info")) {
        rsp.put("core_set", Core.GLOBAL_CORE.keySet());
    }
    if (rb != null && rb.contains("lock_info")) {
        rsp.put("lock_map", app.hongs.util.Block.counts());
    }
    helper.reply("", rsp);
}

Example 72 with MemoryUsage

use of java.lang.management.MemoryUsage in project Lucee by lucee.

the class MacAddressWrap method getPermGenFreeSpaceAsAPercentageOfAvailable.

public static int getPermGenFreeSpaceAsAPercentageOfAvailable() {
    MemoryUsage mu = getPermGenSpaceSize(null);
    if (mu == null)
        return -1;
    long max = mu.getMax();
    long used = mu.getUsed();
    if (max < 0 || used < 0)
        return -1;
    // return a value that equates to a percentage of available free memory
    return 100 - ((int) (100 * (((double) used) / ((double) max))));
}

Example 73 with MemoryUsage

use of java.lang.management.MemoryUsage in project Lucee by lucee.

the class MacAddressWrap method getMemoryUsageAsQuery.

public static Query getMemoryUsageAsQuery(int type) throws DatabaseException {
    java.util.List<MemoryPoolMXBean> manager = ManagementFactory.getMemoryPoolMXBeans();
    Iterator<MemoryPoolMXBean> it = manager.iterator();
    Query qry = new QueryImpl(new Collection.Key[] { KeyConstants._name, KeyConstants._type, KeyConstants._used, KeyConstants._max, KeyConstants._init }, 0, "memory");
    int row = 0;
    MemoryPoolMXBean bean;
    MemoryUsage usage;
    MemoryType _type;
    while (it.hasNext()) {
        bean = it.next();
        usage = bean.getUsage();
        _type = bean.getType();
        if (type == MEMORY_TYPE_HEAP && _type != MemoryType.HEAP)
            continue;
        if (type == MEMORY_TYPE_NON_HEAP && _type != MemoryType.NON_HEAP)
            continue;
        row++;
        qry.addRow();
        qry.setAtEL(KeyConstants._name, row, bean.getName());
        qry.setAtEL(KeyConstants._type, row, _type.name());
        qry.setAtEL(KeyConstants._max, row, Caster.toDouble(usage.getMax()));
        qry.setAtEL(KeyConstants._used, row, Caster.toDouble(usage.getUsed()));
        qry.setAtEL(KeyConstants._init, row, Caster.toDouble(usage.getInit()));
    }
    return qry;
}

Example 74 with MemoryUsage

use of java.lang.management.MemoryUsage in project Lucee by lucee.

the class MacAddressWrap method getMemoryUsageAsStruct.

public static Struct getMemoryUsageAsStruct(int type) {
    java.util.List<MemoryPoolMXBean> manager = ManagementFactory.getMemoryPoolMXBeans();
    Iterator<MemoryPoolMXBean> it = manager.iterator();
    MemoryPoolMXBean bean;
    MemoryUsage usage;
    MemoryType _type;
    long used = 0, max = 0, init = 0;
    while (it.hasNext()) {
        bean = it.next();
        usage = bean.getUsage();
        _type = bean.getType();
        if ((type == MEMORY_TYPE_HEAP && _type == MemoryType.HEAP) || (type == MEMORY_TYPE_NON_HEAP && _type == MemoryType.NON_HEAP)) {
            used += usage.getUsed();
            max += usage.getMax();
            init += usage.getInit();
        }
    }
    Struct sct = new StructImpl();
    sct.setEL(KeyConstants._used, Caster.toDouble(used));
    sct.setEL(KeyConstants._max, Caster.toDouble(max));
    sct.setEL(KeyConstants._init, Caster.toDouble(init));
    sct.setEL(KeyImpl.init("available"), Caster.toDouble(max - used));
    return sct;
}

Example 75 with MemoryUsage

use of java.lang.management.MemoryUsage in project knime-core by knime.

the class MemoryAlertSystem method gcEvent.

private void gcEvent(final double usageThreshold, final Notification not) {
    // Only reset the low memory flag if the last (memory) event was earlier than this event.
    // the GC event and the Mem event have the same timestamp in case the threshold is exceeded.
    m_lastGcTimestamp.set(not.getTimeStamp());
    long prev, next;
    do {
        prev = m_lastEventTimestamp.get();
        next = Math.max(prev, not.getTimeStamp());
    } while (!m_lastEventTimestamp.compareAndSet(prev, next));
    if (prev < not.getTimeStamp()) {
        MemoryUsage collectionUsage = m_memPool.getCollectionUsage();
        long used = collectionUsage.getUsed();
        long max = collectionUsage.getMax();
        double currentUsagePercent = 100.0 * used / max;
        LOGGER.debugWithFormat("Memory usage below threshold (%.0f%%) after GC run, currently %.0f%% (%.2fGB/%.2fGB)", usageThreshold * 100.0, currentUsagePercent, (double) used / FileUtils.ONE_GB, (double) max / FileUtils.ONE_GB);
        m_lowMemory.set(false);
    }
    m_gcEventLock.lock();
    try {
        m_gcEvent.signalAll();
    } finally {
        m_gcEventLock.unlock();
    }
}