Hi it was all going so well. I got my web site doing everything I wanted without ANY problems or mental stress. I’m loading 1.4gb of csv, I’ve got filters/ row selection and plotting all working like a CHAMP BUT all on the local host. The moment I tried to access the same web page from a machine o…

Hi @comicpilsen , I personally never had such an issue. Perhaps it might be related to the fact that you are using the Flask development server…? Try to run your app with some WSGI server, e.g. gunicorn.

Hi @sislvacl thank you for the suggestion, when you say you haven’t hit this issue do you mean that you HAVE used the Flask development server and it’s fine? OR you deploy Dash apps on WSGI servers and all is fine.

I never encountered a significant difference in performance of a dash app when accessing it from local network compared to localhost. I have experience with a large resource-heavy dash app with many callbacks large portion of which can run in parallel. With this app, I witnessed a huge performance …

@sislvacl thank you so much for taking the time. Just to make REALLY sure I understand what you are saying, you deployed your Flask server based app on a local server for development and then just ran a browser on a remote machine on the lan and there was no significant difference between the two? …

There is definitely something specific going on here with your app that can be resolved: many people, myself included, have developed Dash apps locally and then deployed them on LANs or even the public internet with no material performance degradation. Can you share a bit more information about you…

hi there @nicolaskruchten thank you for taking an interest. Starting with the network. Its hardwired ethernet lan with 3 machines on it. all the machines see each other can can ssh into each other. They are all running Ubuntu 18.04 fully updated and upgraded. As is all the python, pandas, plotly e…

I think there are two important hints, first: [image] comicpilsen: “a web page is slowing down your browser. What would you like to do?” Stop it Wait and, second: [image] comicpilsen: all the app does loads a 1.5mb csv file into a dataframe displays the dataframe using Since the am…

Hi @nicolaskruchten thank you for taking an interest. If the loop exists I can’t see it. The process flow is exactly as written. I agree wholeheartedly that I need to put in logging but first I wanted to make sure that this wasn’t a Dash general problem as some posts seem to indicate that Dash h…

I’m not sure what’s going on here, but I’m nearly certain it’s not a general problem with Dash :slight_smile: If you could share the full code of your app, including data (dummy data if necessary) I can try it here to see if I can replicate the issue, but everything here seems like it should work. …

hi @nicolaskruchten thank you so much for staying with this. I am certain it’s the same app as all I did was to change the ip address to reflect the remote access. It certainly is the same data as it only exists in one place, I did test that though. The network is completely empty of traffic as I…

Dash performance bad! HUGE disappointment no clue how to fix?

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Dash performance bad! HUGE disappointment no clue how to fix?

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