RE: time series circular buffer

[Hinko Kocevar <Hinko.Kocevar@esss.se>]

Hi Mark,

sounds like both approaches might be acceptable. I guess it is about code duplication vs. number of different plugins one needs to get this feature, when it comes to deciding where to place this.

thanks,
hinko
 

-- 

Hinko Kocevar

Beam Diagnostics Engineer

European Spallation Source ERIC

P.O Box 176, SE-221 00 Lund, Sweden

Visiting address: Odarslövsvägen 113, 224 84 Lund

Mobile: +46-721-79 22 58

Phone:  +46-46-888 32 58

E-mail: hinko.kocevar@esss.se

Web:    www.esss.se

 

On 2018-06-16 01:07:11+02:00 Mark Rivers wrote:

Hi Hinko,

I think it would be useful to be able to run the time series in circular buffer mode.  There are 2 ways this might be done:

- Add the code for circular buffer mode to the statistics plugin
- Move the time series code out of the statistics plugin and have the statistics plugin send the time points as NDArrays to time series plugins.

I'm not sure which is best.

I have created an issue for this in ADCore.

Thanks,
Mark


-----Original Message-----
From: tech-talk-bounces@aps.anl.gov <tech-talk-bounces@aps.anl.gov> On Behalf Of Hinko Kocevar
Sent: Friday, June 15, 2018 3:55 AM
To: tom.cobb@diamond.ac.uk; Tech-talk <tech-talk@aps.anl.gov>
Subject: Re: time series circular buffer

Hi Tom,

thanks for the suggestion, I have not used this particular plugin so far. I'll give it a try!

Cheers,
Hinko
________________________________________
From: tom.cobb@diamond.ac.uk <tom.cobb@diamond.ac.uk>
Sent: Friday, June 15, 2018 9:44:57 AM
To: Hinko Kocevar; Tech-talk
Subject: RE: time series circular buffer

Hi,

There is the NDPluginAttrPlot plugin which takes any numeric stamped NDAttributes (like the ones the NDPluginStats produces) and puts them in a circular buffer, periodically pushing the last N samples to a set of waveforms. We use it to plot arbitrary attributes against each other.

http://cars9.uchicago.edu/software/epics/NDPluginAttrPlot.html

Thanks,
Tom

&gt; -----Original Message-----
&gt; From: tech-talk-bounces@aps.anl.gov <tech-talk-bounces@aps.anl.gov> On 
&gt; Behalf Of Hinko Kocevar
&gt; Sent: 15 June 2018 07:38
&gt; To: Tech-talk <tech-talk@aps.anl.gov>
&gt; Subject: time series circular buffer
&gt;
&gt; Hi,
&gt;
&gt; in areaDetector NDPluginStats plugin I can get nice timeseries plots 
&gt; for max, mean, min.
&gt; After the number of predefined points are collected the storing stops. 
&gt; Is there a way to configure timeseries buffer as a circular buffer? 
&gt; I've noticed that NDTimeSeries has this feature, but I'm failing to 
&gt; find one in NDPluginStats.
&gt;
&gt; Thanks,
&gt;
&gt; Hinko Kocevar
&gt;
&gt; Beam Diagnostics Engineer
&gt; European Spallation Source ERIC
&gt; P.O Box 176, SE-221 00 Lund, Sweden
&gt; Visiting address: Odarslövsvägen 113, SE-224 84 Lund , Sweden
&gt;
&gt; Mobile: +46-721-79 22 58
&gt; Phone:  +46-46-888 32 58
&gt;
&gt; E-mail: hinko.kocevar@esss.se
&gt; Web:    www.esss.se

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