Experimental Physics and Industrial Control System
Hi all,
We've noticed at the CLS that channel access puts (caput) from a default R3.14.11 build (linux-x86) to a 14.9 IOC are very slow. As a test, we ran a shell script with ~100 caput (command line) calls; it took ~ 24 seconds to complete using the 14.11 version of caput, and only 6s for the 14.9 version.
Asynchronous caputs (using the channel access library, instead of the command line) seem to be even slower -- sometimes taking over a minute for the IOC to respond to all 100 puts.
We're still debugging to see if this is a peculiarity of the IOC. I'm just wondering if anyone has seen similar issues involving channel access between different EPICS versions? Any suggestions for tools or methods to help diagnose the problem?
Best regards,
-Mark
=======================================
Mark Boots
Dept. of Physics and Engineering Physics
University of Saskatchewan
Rm 202 Physics Building
116 Science Place,
Saskatoon SK S7N 5E2
Canada
(306) 261-4162
=======================================
- Navigate by Date:
- Prev:
RE: problem with tpmac-3-7 (loading IOC munch file results in undefined symbol error) Jay Steele
- Next:
RE: MOXA ARM computer and streamDevice Mark Boots
- 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
2018
2019
2020
2021
2022
2023
2024
- Navigate by Thread:
- Prev:
RE: problem with tpmac-3-7 (loading IOC munch file results in undefined symbol error) Jay Steele
- Next:
RE: slow caput from R3.14.11 client to R3.14.9 IOC Jeff Hill
- 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
2018
2019
2020
2021
2022
2023
2024