Experimental Physics and
Industrial Control System

"Mark Rivers" <[email protected]> · Thu, 7 Feb 2008 07:24:15 -0600

I do 16 waveforms of 2038 channels each at 10Hz and medm is OK, I don't see all the waveforms freeze when opening a related display.

However, it may depend on where you are running and displaying medm.  I am running and displaying on Windows with Exceed.  The CPU will be heavily used under those conditions, because my impression is that the cartesian plot widget is not very efficient.

Mark

________________________________

From: [email protected] on behalf of Emmanuel Mayssat
Sent: Wed 2/6/2008 1:06 PM
To: epics
Subject: medm weirdness

Hello,

I am using medm and have noticed something strange.
I have a display with 32 waveforms.
I can open related displays associated with each of those waveforms
(like autoscaled waveform, moving average, etc.)

I noticed that when I open or close a related display ( actually any
display attached to same medm process), all the waveforms freeze.
The IOC is working correctly.

As if none of the monitors were working.
When I open another related display, then the displays update again.

Have you ever experienced this?
Any idea where this could be coming from?

I suspect the PV traffic could be an issue.
Let's assume that I have 40 waveforms with 1200 samples each and a scan
(and updating) rate of .1 Hz.
Is medm overloaded?

Regards,
--
E

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System