Very high CPU usage

[Timmmm]

The Python language server uses a hell of a lot of CPU:

This is with a very large folder open (contains a copy of LLVM, Boost, etc.) but not much actual Python. I have "python.jediEnabled": false.

I'm afraid I can easily reproduce this with my workspace (which is private) but I couldn't manage to do the same by just putting a Python file in a large public directory (the source for Boost). Is there any way to debug what it is actually doing?

Environment data

• VS Code version: 1.28
• Extension version (available under the Extensions sidebar): 2018.8.0
• OS and version: OSX 10.13.6
• Python version (& distribution if applicable, e.g. Anaconda): brew, Python 3
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): N/A
• Relevant/affected Python packages and their versions: ?

Logs

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

Starting Microsoft Python language server.
Initializing for /usr/local/opt/python/bin/python3.7

Output from Console under the Developer Tools panel (toggle Developer Tools on under Help)

INFO no standard startup: not just one window
console.ts:136 [Extension Host] Git extension API method 'getGitPath' is deprecated

[bcroq]

Same problem here.

• VS Code version: 1.28
• OS: Ubuntu 17.10
• Python : stackless 2.7

With ms-python-2018.8.0:

• the language server process eats memory until the system locks

With ms-python-2018.9.0 installed using today's ms-python-insiders.vsix:

• the language server process takes up to 4GB of memory (8GB virtual)
• the extensionHost process takes 100% CPU (i.e. one core) and its virtual memory is always going up

[DonJayamanne]

Duplicate of #2594