第 7 章 运行并解释硬件和固件延迟测试

流程

• 运行 hwlatdetect，以秒为单位指定测试持续时间。

  hwlatdetect 通过轮询时钟源并查找无法解释的差距来查找硬件和固件延迟。

  # hwlatdetect --duration=60s
  hwlatdetect:  test duration 60 seconds
  	detector: tracer
  	parameters:
  		Latency threshold:    10us
  		Sample window:        1000000us
  		Sample width:         500000us
  		Non-sampling period:  500000us
  		Output File:          None
  
  Starting test
  test finished
  Max Latency: Below threshold
  Samples recorded: 0
  Samples exceeding threshold: 0

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