Performance optimizations · Issue #11 · godot-rust/gdext (original) (raw)

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Description

There are some low-hanging fruits for making the library faster, this issue tracks such approaches.

Codegen

• Check rustfmt performance -- parallelize or allow skipping
• Cache intermediate results in Context, e.g. to_rust_type

Runtime

• Cache function pointers used by engine + builtin classes in a global method table
• Provide maximum type information to GDScript, so it can use ptrcalls whenever possible
• Benchmark if #[inline] has a true impact (otherwise don't clutter the whole codebase)
• Varargs (e.g. Object::call) could use impl AsVararg + passing as tuple, to allocate argument array on the stack