Data App Performance Tests

My hypothesis is that

The different architectures of Dash, Panel and Streamlit makes a difference if you want to create snappy applications.

I want to test that hypothesis and elaborate on it.

Test Setup

In order to fairly and reproducibly compare the frameworks I will pin requirements as much as possible and run in Docker.

Docker

You can build with

docker build -f "Dockerfile" -t dataappperformance:latest "."

and run interactively with

docker run --rm -it  -p 80:80 dataappperformance:latest

You can list all tests with

$ docker run --rm -it -p 80:80 dataappperformance:latest -c 'invoke --list'
Available tasks:

  page-load.dash
  page-load.panel
  page-load.streamlit
  slider-plot.dash
  slider-plot.panel
  slider-plot.streamlit

So to run for example the Panel slider-plot app you would run

docker run --rm -it -p 80:80 dataappperformance:latest -c 'invoke slider-plot.panel'

To run the page load test you would have to add port 8089 to the mix like

docker run --rm -it -p 80:80 -p 8089:8089 dataappperformance:latest -c 'invoke page-load.panel'

Test Results

Click the images to dive into the test and its results

Drag Slider with Plot Updating Performance Test

Only works for Panel

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Page Load and Refresh

Dash clear winner. Panel server shows blocking behaviour. Streamlit is very fast in theory but probably slowest in practice.

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