本文整理了Java中com.facebook.presto.execution.QueryStateMachine.updateMemoryUsage方法的一些代码示例，展示了QueryStateMachine.updateMemoryUsage的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。QueryStateMachine.updateMemoryUsage方法的具体详情如下：
包路径：com.facebook.presto.execution.QueryStateMachine
类名称：QueryStateMachine
方法名：updateMemoryUsage

QueryStateMachine.updateMemoryUsage介绍

暂无

代码示例

代码示例来源：origin: prestodb/presto

@Override
  public synchronized void stateChanged(TaskStatus newStatus)
  {
    long currentUserMemory = newStatus.getMemoryReservation().toBytes();
    long currentSystemMemory = newStatus.getSystemMemoryReservation().toBytes();
    long currentTotalMemory = currentUserMemory + currentSystemMemory;
    long deltaUserMemoryInBytes = currentUserMemory - previousUserMemory;
    long deltaTotalMemoryInBytes = currentTotalMemory - (previousUserMemory + previousSystemMemory);
    previousUserMemory = currentUserMemory;
    previousSystemMemory = currentSystemMemory;
    stateMachine.updateMemoryUsage(deltaUserMemoryInBytes, deltaTotalMemoryInBytes, currentTotalMemory);
  }
}

代码示例来源：origin: prestodb/presto

@Test
public void testUpdateMemoryUsage()
{
  QueryStateMachine stateMachine = createQueryStateMachine();
  stateMachine.updateMemoryUsage(5, 10, 3);
  assertEquals(stateMachine.getPeakUserMemoryInBytes(), 5);
  assertEquals(stateMachine.getPeakTotalMemoryInBytes(), 10);
  assertEquals(stateMachine.getPeakTaskTotalMemory(), 3);
  stateMachine.updateMemoryUsage(0, 0, 2);
  assertEquals(stateMachine.getPeakUserMemoryInBytes(), 5);
  assertEquals(stateMachine.getPeakTotalMemoryInBytes(), 10);
  assertEquals(stateMachine.getPeakTaskTotalMemory(), 3);
  stateMachine.updateMemoryUsage(1, 1, 5);
  assertEquals(stateMachine.getPeakUserMemoryInBytes(), 6);
  assertEquals(stateMachine.getPeakTotalMemoryInBytes(), 11);
  assertEquals(stateMachine.getPeakTaskTotalMemory(), 5);
  stateMachine.updateMemoryUsage(3, 3, 2);
  assertEquals(stateMachine.getPeakUserMemoryInBytes(), 9);
  assertEquals(stateMachine.getPeakTotalMemoryInBytes(), 14);
  assertEquals(stateMachine.getPeakTaskTotalMemory(), 5);
}

代码示例来源：origin: uk.co.nichesolutions.presto/presto-main

@Override
  public synchronized void stateChanged(TaskInfo newState)
  {
    long currentMemory = newState.getStats().getMemoryReservation().toBytes();
    long deltaMemoryInBytes = currentMemory - previousMemory;
    previousMemory = currentMemory;
    stateMachine.updateMemoryUsage(deltaMemoryInBytes);
  }
}