Code Generation vs C Interface Performance Benchmark

Is there any benchmark for code generation vs c interface performance? I didn’t find any

I don’t understand this question.
The code generation used of acados generates problem specific C code which only calls to the acados C interface. Thus, using the code generation of acados corresponds to using the acados C
I am not sure what you would want to compare.

Okey. I thought using the c interface directly would imply some overhead wrt the custom generated code. Thanks!