cache numba's functions

[mikilterribile]

Hi everyone,

I have been using Datashader with Matplotlib to create dynamic visualizations of large vectors (shapefiles). The approach works fine, but each time I start the program, Numba's functions for creating the canvas and the shaded image are compiled by Numba, resulting in a 6-7 second overhead.

I wonder if it's possible to enable caching (for instance, setting use_cache=True) in the @njit decorator for the function, and whether there is a general solution to overcome this problem.

Thank you in advance for your attention.

Best regards,
Michele Zucchelli.

[jbednar]

Yes, this is an issue. Definitely needs addressing!

[mikilterribile]

ok thank you for your answer