Add a "no SVG animations" mode when discovering and running tests

Environment data

• VS Code version: 1.41.0
• Extension version (available under the Extensions sidebar): 2019.11.50794
• OS and version: Ubuntu 19.10
• Python version (& distribution if applicable, e.g. Anaconda): 3.6.9
• Type of virtual environment used (N/A | venv | virtualenv | conda | …): poetry
• Relevant/affected Python packages and their versions: Django/Django RestFramework
• Jedi or Language Server? (i.e. what is "python.jediEnabled" set to; more info #3977): Jedi

Expected behaviour

See minimal slowdown when running unittests via VScode vs the commandline.

Actual behaviour

When running the unittests (pytest and Django) with an intel GPU (UHD Graphics 620) they take around 100 seconds. With an nvidia GPU around 25 seconds. On the commandline it’s around 22 seconds.

Steps to reproduce:

1. Have an intel GPU:
2. Click on the Flask/test explorer
3. Click on the green arrow, i.e. “Run all tests”
4. check the Python Test Log output for the time
5. Repeat steps with an NVIDIA GPU.

Or

1. Have an intel GPU
2. Click on the Flask/test explorer
3. Click on the green arrow, i.e. “Run all tests”
4. check the Python Test Log output for the time
5. Repeat but minimize the window after clicking on ‘Run all tests’.

and observe that it takes up so much CPU/GPU time that is slows the whole thing down.

It could be due to the spinner in the test explorer, because minimizing VSCode solves the problem.

Logs

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

Console Log with sourcemap enabled for NVIDIA and Intel https://gist.github.com/rvanlaar/603eae9dd4ccf7bf82f473f537acf1a3

[rvanlaar]

For reference: I also created a chromium issue for it: https://bugs.chromium.org/p/chromium/issues/detail?id=1036262

[rvanlaar]

This issue can be closed.

After looking more into this issue and the performance problems. This issue was due to having enabled fractional scaling in Xorg on ubuntu.