memory usage: MicoPython vs. Python3

[HermannSW]

I found only global memory information functions for MicroPython, and only object specific memory usage function in Python3:

https://docs.micropython.org/en/latest/ ... ained.html
micropython.mem_info() Print a summary of RAM utilisation.
gc.mem_free() Return the free heap size in bytes.

https://docs.python.org/3/library/sys.h ... module-sys
sys.getsizeof(object[, default]) Return the size of an object in bytes. ...

Is there an equivalent to sys.getsizeof(object) somewhere in MicroPython?
If not, can the object memory be determined otherwise in MicroPython?

[jickster]

Yes there is

Code: Select all

// Whether to provide "sys.getsizeof" function
#define MICROPY_PY_SYS_GETSIZEOF (0)

But this unary operator has to be implemented by each type on which you wish to use it; this cannot be enforced at compile-time.