Experimental Physics and Industrial Control System
Hi Xihui,
We have the exact same kind of issues with the current EPICS Gateway,
basically my understanding of the problem is that the gateway must wait
till all the IP packet for a given EPICS message came in, before being
able to re-construct the value in the "Server" part of the gateway and
only then send the event to the clients that a new value is there. This
introduce of course some latency.
Due to this issue and others, we are currently developing a gateway
implementation which works with a different approach and the initial
tests are promising.
Sincerely,
Alain Bertrand
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Chen, Xihui
Sent: Monday, June 25, 2012 16:50
To: [email protected]
Subject: Large waveform PV through CA Gateway
Hi,
I have a performance issue with transferring large image PV(2048*2048 at
1hz) through CA gateway. Without CA gateway, the client are able to
update at 1hz, but with ca gateway, it can only get updates every 10
second. The CPU usage on IOC, gateway and client are all very low. I
want to know if anyone has similar experience?
Thanks,
Xihui
- Replies:
- RE: Large waveform PV through CA Gateway Chen, Xihui
- References:
- Large waveform PV through CA Gateway Chen, Xihui
- Navigate by Date:
- Prev:
Re: Large waveform PV through CA Gateway Dirk Zimoch
- Next:
RE: Large waveform PV through CA Gateway Chen, Xihui
- 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: Large waveform PV through CA Gateway Dirk Zimoch
- Next:
RE: Large waveform PV through CA Gateway Chen, Xihui
- 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