public StreamThroughput(String statusMessagePrefix){
  m_instanceCount=0;
  m_sampleCount=0;
  m_numSamples=0;
  m_cumulativeTime=0;
  m_startTime=System.currentTimeMillis();
  m_statusMessagePrefix=statusMessagePrefix;
}

public StreamThroughput ( String statusMessagePrefix ) { m_instanceCount = 0 ; m_sampleCount = 0 ; m_numSamples = 0 ; m_cumulativeTime = 0 ; m_startTime = System . currentTimeMillis ( ) ; m_statusMessagePrefix = statusMessagePrefix ; }
construct a new streamthroughput
