Is It really so slow ?

[mtk11]

I just tried micropython-raspberrypi on RP1 and it seems to work quite slow. The results from pystone_lowmem.py:

Pystone(1.2) time for 500 passes = 853ms
This machine benchmarks at 586 pystones/second

The result is compatible with a 64 MHz Cortex-M4 MCU, Has anyone performed similar testing ?

[boochow]

@mtk11 Yes, it is very slow. When I ran micropython on Raspbian, it was 8-9 times faster than the bare metal version.
To speed it up, I probably need to enable instruction-cache / data-cache, branch predictor,etc. but I have not investigated yet.