Some people claim that XPC is faster than unix domain sockets. I haven't seen any benchmarks to back it up, so I made this.
Tests were performed on a 2017 MacBook Pro, 2.9GHz i7, Monterey 12.2.
| Benchmark | UDS | XPC |
|---|---|---|
| round trip of 10b | 11us | 12us |
| round trip of 1KiB | 11us | 15us |
| round trip of 10MiB | 17ms | 12ms |
| connect and round trip of 10b | 32us | 95us |