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@jonhoo OK, for 128 MB of semi-random data with separator present every 111 bytes it's only ~2× faster than just `.split()` from `std` - not that great.
Test on AMD Ryzen 7 PRO 6850U.
Interestingly turning on `-Ctarget-cpu=native` makes both slower 🤔
Inspired by @jonhoo's `brrr` I wrote #SIMD splitting iterator which seem to work. Now, I'm not sure if I should be proud of myself, or sad I reinvented the wheel...
For those interested: it has limitation to byte slices, but it's correct for #unaligned data (subject to future optimisations); uses nightly.
Now it needs #benchmarks
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