Static Type Declarations and Performance
A Cython program that implements the same algorithm as a corresponding Python program may consume fewer computing resources such as core memory and processing cycles due to differences between the CPython and Cython execution models. On the one hand, a basic Python program is loaded and executed by the CPython virtual machine, so both the runtime and the program itself consume computing resources. On the other hand, a Cython program is compiled to C code, which is further compiled to machine code, so the virtual machine is used only briefly when the program is loaded.
Cython employs
- Optimistic optimizations
- Type inference
- Low overhead in control structures
- Low function call overhead
Since C is the intermediate language, performance will depend on the C compiler.
Read more about this topic: Cython
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