Site is slow while posting question or answer

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It may be that what slows down the posting is sending email notifications to the users.

This can be resolved by a setting CELERY_ALWAYS_EAGER = False in the settings.py and running the celery task queue:

# for Askbot v < 0.10.x
python manage.py celeryd -c 10 --maxtasksperchild=1000 --time-limit=30

# for 0.10.x
celery -A config worker --time-limit=600 --concurrency=2 -l info

The celery envocation commands above are examples - you might find better parameters.

It seems the preview of the currently-being-typed post is being re-generated (including running MathJax on the whole post) at every keystroke instead of after every few keystrokes, which makes posting questions or answers extremely slow.

It would be nice if someone could figure out what to change in the source code to fix that!