Hi,
I think the bandwidth requirements depend almost entirely on the number of large arrays you will be sending via Channel Access. If you use areaDetector and Channel Access to transport arrays from an IOC to a client viewer you can easily consume 100% of GigE bandwidth. If you have a display with 1000 scaler PVs each changing at 10Hz that will only be 80kB/s (plus overhead), so it is less than 0.1% of GigE bandwidth.
Mark
________________________________
From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Manoussakis, Adamandios via Tech-talk <tech-talk at aps.anl.gov>
Sent: Tuesday, February 9, 2021 3:04 PM
To: tech-talk at aps.anl.gov
Subject: Estimate Data Rate and BW requirements
Hello All,
Trying to understand a few things on data rate and bandwidth with regards to epics. Most of epics is based off UDP/TCP, so I was thinking that your max will be related to TCP throughput calculations?
Is there a rule of thumb for epics on estimating BW requirements?
If the infrastructure is there to transmit and no BW issues what is the upper limit for data rate given a number of PVs?
Is there an upper limit depending on PVs and there sizes when doing transfers like caget?
Thanks
- Replies:
- RE: Estimate Data Rate and BW requirements Manoussakis, Adamandios via Tech-talk
- References:
- Estimate Data Rate and BW requirements Manoussakis, Adamandios via Tech-talk
- Navigate by Date:
- Prev:
Estimate Data Rate and BW requirements Manoussakis, Adamandios via Tech-talk
- Next:
Question about option MaxPermSize for CSS lzf neu via Tech-talk
- 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:
Estimate Data Rate and BW requirements Manoussakis, Adamandios via Tech-talk
- Next:
RE: Estimate Data Rate and BW requirements Manoussakis, Adamandios via Tech-talk
- 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
|