Putex - Pi's custom Mutex
Experimenting with how a Mutex and synchronization primitives (atomics) work.
No real use case, but short and clean Rust code for you to look at :)
Benchmarking
Two surprises for me: The spinlock variant is slower than the one yielding to the OS scheduler, but, secondly, both Putex variants are faster than a std::sync::Mutex.
test tests::bench_putex_spin ... bench: 473,454 ns/iter (+/- 28,847)
test tests::bench_putex_yield ... bench: 391,341 ns/iter (+/- 63,764)
test tests::bench_std_mutex ... bench: 997,582 ns/iter (+/- 115,092)
(tested on an AMD 3960X)
License
This repository is available in the public domain according to the CC0 license. Do with it whatever you want, I expressively waive all ownership rights related to this work. Also, if it makes your computer go kaboom, that's on you.