Performance is basically the same (in microbenchmarks), they went as far as preserving the use of red black trees for an apples to apples comparison, but it’s going to improve security as binder runs inside every process.
That means binder is going to join Asahi graphics, the Android Bluetooth stack, and puzzlefs in the serious drivers written in Rust club.
That’s a great explanation! Thank you, I get it now. I always did wonder what exactly IPC was about. Yay for Rust in the kernel.