EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  <20182019  2020  2021  2022  2023  2024  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  <20182019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: RE: Autosave -- debug output when field is updated
From: Mark Rivers <[email protected]>
To: "'Daykin, Evan'" <[email protected]>, "[email protected]" <[email protected]>
Date: Tue, 13 Feb 2018 19:32:27 +0000

Hi Evan,

 

Note that the rate at which the PV updates and the rate at which the autosave file is written are quite different things.  I don’t think it would use a lot of CPU for the PV to update rapidly when the file is only being written every 30 seconds or so.  But perhaps I am wrong?

 

Mark

 

 

From: [email protected] [mailto:[email protected]] On Behalf Of Daykin, Evan
Sent: Tuesday, February 13, 2018 12:50 PM
To: [email protected]
Subject: Autosave -- debug output when field is updated

 

Hello,

 

Apologies in advance if this is in the documentation somewhere, I was unable to find it.


We have an IOC which uses quite a lot of CPU when autosave is turned on. This is most likely the result of some inadvertently autosaved fields being updated at 100Hz. Is there a straightforward way, such as an IOC shell command, to print some debug output whenever an autosaved field is written?

 

Best,


Evan


Replies:
Re: Autosave -- debug output when field is updated Mooney, Tim M.
References:
Autosave -- debug output when field is updated Daykin, Evan

Navigate by Date:
Prev: Re: SMA100A Signal Generatordriver Nicholas P. DiMonte
Next: RE: SMA100A Signal Generatordriver Ha, Kiman
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  <20182019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: Re: Autosave -- debug output when field is updated Mooney, Tim M.
Next: Re: Autosave -- debug output when field is updated Mooney, Tim M.
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  <20182019  2020  2021  2022  2023  2024 
ANJ, 13 Feb 2018 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·