NiceGUI uses 100% of a CPU core when running inside a container about nicegui HOT 3 CLOSED

Hi @falkoschindler

Does that solution work for you?

Yes -- thanks for the diagnosis.

from nicegui.

Thanks for converting this into an issue.

It looks like using ui.run(reload=False) fixes the issue, which is actually fine for my purposes.

from nicegui.

@pwt I think I found the reason for 100% CPU usage: You're copying the nicegui-test.py into the root directory /, which will also be the working directory when running the NiceGUI app. But this causes the reload watchdog to watch the whole disk, which is pretty costly. By moving the working directory somewhere else, the CPU drops to around 0.5% on my machine:

FROM python:3.12-slim
RUN pip install --root-user-action=ignore --disable-pip-version-check --no-cache-dir nicegui
WORKDIR /root
COPY nicegui-test.py nicegui-test.py
CMD python nicegui-test.py

Does that solution work for you?

from nicegui.