[EXTERNAL] Request on help for real time plots

[BRISSET, Nicolas]

Hi,

What kind of data format are you using? This can make a difference. In the ASCII datasource there are options to limit the RAM consumption, otherwise the complete file is mapped into memory, and if it becomes very large and forces your PC to swap it could have a significant impact on performance.

Nicolas

-----Message d'origine-----
De : Kst [mailto:kst-bounces at kde.org] De la part de Maher, Stephen F. (GSFC-665.0)[SCIENCE SYSTEMS AND APPLICATIONS INC]
Envoyé : lundi 22 juillet 2019 16:54
À : kst at kde.org
Objet : RE: [EXTERNAL] Request on help for real time plots

Hi Thore,

We use kst for realtime plotting over long periods of time quite successfully.  (Multi-channel, multi-KHz, multi-day)

We have some beefy machines but I don't remember seeing "significant" CPU or memory consumption by kst.

Some tips: don't use points on your plots and change the range and/or subsampling.

Steve

> -----Original Message-----
> From: Kst <kst-bounces at kde.org> On Behalf Of Thore Oltersdorf
> Sent: Monday, July 22, 2019 9:32 AM
> To: kst at kde.org
> Subject: [EXTERNAL] Request on help for real time plots
> 
> Dear all.
> 
> We are using kst2 for plotting test bench real time data. kst2 is very 
> powerful but it slows down when used for a long period. We were not 
> able to identify how to free RAM (or whatever makes it slow) when this 
> happens. Or is it related to the daily generated raw data file in 
> which the testbench DAQ is appending its data per second? kst2 uses 
> this raw data file and maybe it becomes simply too large?
> 
> Any help is appreciated. Thanks in advance! Sorry if I have not found 
> it immediately in "known bugs" list or elsewhere. I tried to!
> 
> Kind Regards.
> Thore
The information in this e-mail is confidential. The contents may not be disclosed or used by anyone other than the addressee. Access to this e-mail by anyone else is unauthorised.
If you are not the intended recipient, please notify Airbus immediately and delete this e-mail.
Airbus cannot accept any responsibility for the accuracy or completeness of this e-mail as it has been sent over public networks. If you have any concerns over the content of this message or its Accuracy or Integrity, please contact Airbus immediately.
All outgoing e-mails from Airbus are checked using regularly updated virus scanning software but you should take whatever measures you deem to be appropriate to ensure that this message and any attachments are virus free.