Also don’t miss the investigation linked by the end of the article on /r/rust about vectorisation optimisation, also not the followup correcting the mistake that bounds checks deactivate vectorisation and the final conclusion about readability and optimisation.

https://www.reddit.com/r/rust/comments/4udxmr/rust_performance_a_story_featuring_perf_and/d5plly1/

https://www.reddit.com/r/rust/comments/4udxmr/rust_performance_a_story_featuring_perf_and/d5ppecq/

https://www.reddit.com/r/rust/comments/4udxmr/rust_performance_a_story_featuring_perf_and/d5qldgd/

Finally:

So, for those that don’t know, vectorization is a tricky optimisation.

Fantastic post. Bookmarking.