How to improve event response times (latency) for Red Hat Enterprise Linux realtime certification

Solution Verified - Updated -

Issue

When running the rteval tool, either as a part of a Red Hat Hardware Certification for Real-Time run or on its own, the measurement check fails with errors such as the following:

Checking /rteval/Measurements/Profile/cyclictest/system/statistics/maximum: Must be < 150.000000, measured to 450.000000 
Error: Measurement Check failed for /rteval/Measurements/Profile/cyclictest/system/statistics/maximum

Checking /rteval/Measurements/Profile/cyclictest/system/statistics/standard_deviation: Must be < 3.000000, measured to 3.965418 
Error: Measurement Check failed for /rteval/Measurements/Profile/cyclictest/system/statistics/standard_deviation

Environment

  • Red Hat Enterprise Linux for Real-Time 8
  • Red Hat Enterprise Linux for Real-Time 9

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