That's a single benchmark. Before regex-redux was regex-dna, and Rust's regex engine was faster than PCRE2 on that benchmark. So how does that change your conclusion?

The regex crate has many more benchmarks: https://github.com/rust-lang/regex/blob/master/bench/log/07/... and https://github.com/rust-lang/regex/blob/master/bench/log/07/... for example.

And then there are things like this which can impact the performance of real world use cases: https://github.com/BurntSushi/ripgrep/blob/master/FAQ.md#pcr...

Please don't draw sweeping conclusions about the comparative performance of regex engines from a single benchmark.