EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  <20202021  2022  2023  2024  Index 2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  <20202021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: [Bug 1861612] Re: callbackRequestDelay not waiting for 1/60 sec on vxWorks
From: mdavidsaver via Core-talk <core-talk at aps.anl.gov>
To: core-talk at aps.anl.gov
Date: Mon, 03 Feb 2020 17:03:34 -0000
The attached patch is a bit of a shot in the dark, but maybe worth
testing.

** Patch added: "Remove use of time quantum in timer delay calc"
   https://bugs.launchpad.net/epics-base/+bug/1861612/+attachment/5325016/+files/timer.diff

-- 
You received this bug notification because you are a member of EPICS
Core Developers, which is subscribed to EPICS Base.
Matching subscriptions: epics-core-list-subscription
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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/epics-base/+bug/1861612/+subscriptions

References:
[Bug 1861612] [NEW] callbackRequestDelay not waiting for 1/60 sec on vxWorks rivers via Core-talk

Navigate by Date:
Prev: [Bug 1861612] Re: callbackRequestDelay not waiting for 1/60 sec on vxWorks rivers via Core-talk
Next: Build failed in Jenkins: EPICS-3.16 #176 Jenkins EPICS PSI via Core-talk
Index: 2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  <20202021  2022  2023  2024 
Navigate by Thread:
Prev: [Bug 1861612] Re: callbackRequestDelay not waiting for 1/60 sec on vxWorks rivers via Core-talk
Next: [Bug 1861612] Re: callbackRequestDelay not waiting for 1/60 sec on vxWorks rivers via Core-talk
Index: 2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  <20202021  2022  2023  2024 
ANJ, 03 Feb 2020 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·