Experimental Physics and
Industrial Control System

rivers via Core-talk <core-talk at aps.anl.gov> · Mon, 03 Feb 2020 22:21:52 -0000

Reverting Michael's patch I see this with RATE=30Hz.

updateCounts: posting scaler values counts[0]=340710
updateCounts: posting scaler values counts[0]=673958
updateCounts: posting scaler values counts[0]=1007853
updateCounts: posting scaler values counts[0]=1340645
updateCounts: posting scaler values counts[0]=1673964
updateCounts: posting scaler values counts[0]=2007397
updateCounts: posting scaler values counts[0]=2340634
updateCounts: posting scaler values counts[0]=2673957
updateCounts: posting scaler values counts[0]=3008932
updateCounts: posting scaler values counts[0]=3341156

So the average delta ticks is (3341156-340710)/9.=333382.8, which is
33.3 ms, as expected.

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https://bugs.launchpad.net/bugs/1861612

Title:
  callbackRequestDelay not waiting for 1/60 sec on vxWorks

Status in EPICS Base:
  New

Bug description:
  The problem is documented in this tech-talk thread:
  https://epics.anl.gov/tech-talk/2020/msg00308.php

  In 7.0.3.1, but not in 7.0.3, callbackRequestDelay(1/60) results in
  100% CPU time, most of the time in cbHigh.

  This happens on vxWorks 6.9.4.1 and was first seen with the scaler
  record with multiple types of scaler hardware and device support.

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System