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 2018 <2019> 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 2018 <2019> 2020 2021 2022 2023 2024
<== Date ==>		<== Thread ==>

Subject:	comparison of different CA clients: caproto and pyepics
From:	Valentyn Stadnytskyi via Tech-talk <[email protected]>
To:	[email protected]
Date:	Tue, 8 Oct 2019 14:33:43 -0400

Hello,

I have been working on writing server and clients using caproto and pyepics libraries. I have a simple server written with caproto that has only one PV, '.image’. I can get the image with pyepics or caproto clients. It seems that pyepics client is 2 times slower than caproto. Does anyone know why caproto is faster than pyepics? Is it because the server is written in caproto?

The server code: https://github.com/vstadnytskyi/caproto-sandbox/blob/master/caproto_sandbox/io_camera_server.py

The client code: https://github.com/vstadnytskyi/caproto-sandbox/blob/master/caproto_sandbox/io_camera_client.py

Server is running on the same machine. The image size is 1,3960,3960

Results:

One request: