Java BufferPoolMXBean.getMemoryUsed方法代码示例

import java.lang.management.BufferPoolMXBean; //导入方法依赖的package包/类
@Override
public Object next() {
  if (!beforeFirst) {
    throw new IllegalStateException();
  }
  beforeFirst = false;
  final MemoryInfo memoryInfo = new MemoryInfo();

  final DrillbitEndpoint endpoint = context.getIdentity();
  memoryInfo.hostname = endpoint.getAddress();
  memoryInfo.user_port = endpoint.getUserPort();

  final MemoryUsage heapMemoryUsage = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
  memoryInfo.heap_current = heapMemoryUsage.getUsed();
  memoryInfo.heap_max = heapMemoryUsage.getMax();

  BufferPoolMXBean directBean = getDirectBean();
  memoryInfo.jvm_direct_current = directBean.getMemoryUsed();


  memoryInfo.direct_current = context.getDrillbitContext().getAllocator().getAllocatedMemory();
  memoryInfo.direct_max = TopLevelAllocator.MAXIMUM_DIRECT_MEMORY;
  return memoryInfo;
}
 

import java.lang.management.BufferPoolMXBean; //导入方法依赖的package包/类
static void check(List<BufferPoolMXBean> pools,
                  int minBufferCount,
                  long minTotalCapacity)
{
    int bufferCount = 0;
    long totalCap = 0;
    long totalMem = 0;
    for (BufferPoolMXBean pool: pools) {
        bufferCount += pool.getCount();
        totalCap += pool.getTotalCapacity();
        totalMem += pool.getMemoryUsed();
    }
    if (bufferCount < minBufferCount)
        throw new RuntimeException("Count less than expected");
    if (totalMem < minTotalCapacity)
        throw new RuntimeException("Memory usage less than expected");
    if (totalCap < minTotalCapacity)
        throw new RuntimeException("Total capacity less than expected");
}
 

import java.lang.management.BufferPoolMXBean; //导入方法依赖的package包/类
@Override
public Object next() {
  if (!beforeFirst) {
    throw new IllegalStateException();
  }
  beforeFirst = false;
  final MemoryInfo memoryInfo = new MemoryInfo();

  final NodeEndpoint endpoint = dbContext.getEndpoint();
  memoryInfo.hostname = endpoint.getAddress();
  memoryInfo.fabric_port = endpoint.getFabricPort();

  final MemoryUsage heapMemoryUsage = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
  memoryInfo.heap_current = heapMemoryUsage.getUsed();
  memoryInfo.heap_max = heapMemoryUsage.getMax();

  BufferPoolMXBean directBean = getDirectBean();
  memoryInfo.jvm_direct_current = directBean.getMemoryUsed();


  memoryInfo.direct_current = dbContext.getAllocator().getAllocatedMemory();
  memoryInfo.direct_max = SabotConfig.getMaxDirectMemory();
  return memoryInfo;
}
 

import java.lang.management.BufferPoolMXBean; //导入方法依赖的package包/类
@Override
public Object next() {
  if (!beforeFirst) {
    throw new IllegalStateException();
  }
  beforeFirst = false;
  final MemoryInfo memoryInfo = new MemoryInfo();

  final DrillbitEndpoint endpoint = context.getIdentity();
  memoryInfo.hostname = endpoint.getAddress();
  memoryInfo.user_port = endpoint.getUserPort();

  final MemoryUsage heapMemoryUsage = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
  memoryInfo.heap_current = heapMemoryUsage.getUsed();
  memoryInfo.heap_max = heapMemoryUsage.getMax();

  BufferPoolMXBean directBean = getDirectBean();
  memoryInfo.jvm_direct_current = directBean.getMemoryUsed();


  memoryInfo.direct_current = context.getDrillbitContext().getAllocator().getAllocatedMemory();
  memoryInfo.direct_max = DrillConfig.getMaxDirectMemory();
  return memoryInfo;
}
 

import java.lang.management.BufferPoolMXBean; //导入方法依赖的package包/类
@Override
public void run() {
    try {
        long memoryUsed = 0;
        for (BufferPoolMXBean bufferPool : bufferPools) {
            if (bufferPool.getName().equals("direct")) {
                memoryUsed = bufferPool.getMemoryUsed();
            }
        }

        Counter counter = new Counter(ValueType.VALUE);
        counter.set(memoryUsed);
        check(counter, config.getDescription(), "Allocate more direct memory. ");
    } catch (Exception x) {
        // TODO what?
    }
}
 

import java.lang.management.BufferPoolMXBean; //导入方法依赖的package包/类
@Override
protected void heartbeat() {
	// Let them know we are alive
	// Print some stats about the ByteBuffers
	List<BufferPoolMXBean> byteBufferPools = 
		ManagementFactory.getPlatformMXBeans(BufferPoolMXBean.class);

	String direct = "direct";
	String mapped = "mapped";
	
	for (BufferPoolMXBean bean: byteBufferPools) {
		if (bean.getName().equalsIgnoreCase(direct)) {
			direct += " - " + bean.getMemoryUsed() + "/" + bean.getTotalCapacity();
		}
		if (bean.getName().equalsIgnoreCase(mapped)) {
			mapped += " - " + bean.getMemoryUsed() + "/" + bean.getTotalCapacity();
		}
	}
	
	logMessage(direct + " , " + mapped);
	logMessage("Currently connected clients: " + getConnectedClients().size());
	logMessage("Total bytes received       : " + bytesReceived);
	logMessage("Total clients connected    : " + clientsConnected);
	logMessage("Total clients disconnected : " + clientsDisconnected);
	
	synchronized (connectionsPerSecond) {
		if (!connectionsPerSecond.isEmpty()) {
			logMessage("CPS Max: " + Collections.max(connectionsPerSecond.values()) );
		}
	}
	synchronized (connectionsPerMinute) {
		if (!connectionsPerMinute.isEmpty()) {
			logMessage("CPM Max: " + Collections.max(connectionsPerMinute.values()) );
		}
	}

	logMessage();
}
 

import java.lang.management.BufferPoolMXBean; //导入方法依赖的package包/类
BufferPoolMetricSet() {
    this.bufferPoolMXBeans = ManagementFactory.getPlatformMXBeans(BufferPoolMXBean.class);

    List<BufferPoolStatus> bufferPoolStatuses = new ArrayList<>();
    Map<String, Metric> metricsByNames = new HashMap<>();

    for (final BufferPoolMXBean bufferPoolMXBean : bufferPoolMXBeans) {
        final String bufferPoolName = bufferPoolMXBean.getName();

        final Gauge<Long> sizeGauge = new Gauge<Long>() {
            @Override
            public Long getValue() {
                return bufferPoolMXBean.getCount();
            }
        };
        metricsByNames.put(MetricNamingUtil.join(bufferPoolName, "size"), sizeGauge);

        final Gauge<Long> totalCapacityInBytesGauge = new Gauge<Long>() {
            @Override
            public Long getValue() {
                return bufferPoolMXBean.getTotalCapacity();
            }
        };
        metricsByNames.put(MetricNamingUtil.join(bufferPoolName, "totalCapacityInBytes"), totalCapacityInBytesGauge);

        final Gauge<Long> usedMemoryInBytesGauge;
        if (bufferPoolMXBean.getMemoryUsed() >= 0) {
            usedMemoryInBytesGauge = new Gauge<Long>() {
                @Override
                public Long getValue() {
                    return bufferPoolMXBean.getMemoryUsed();
                }
            };
            metricsByNames.put(MetricNamingUtil.join(bufferPoolName, "usedMemoryInBytes"), usedMemoryInBytesGauge);
        } else {
            usedMemoryInBytesGauge = null;
        }

        bufferPoolStatuses.add(new BufferPoolStatus() {
            @Override
            public String getName() {
                return bufferPoolName;
            }

            @Override
            public Gauge<Long> getSizeGauge() {
                return sizeGauge;
            }

            @Override
            public Gauge<Long> getTotalCapacityInBytesGauge() {
                return totalCapacityInBytesGauge;
            }

            @Override
            public Gauge<Long> getUsedMemoryInBytesGauge() {
                return usedMemoryInBytesGauge;
            }
        });
    }

    this.bufferPoolStatuses = bufferPoolStatuses;
    this.metricsByNames = metricsByNames;
}