<commit_before># xxh32

Rust implementation of the xxh32 hash used in the LZ4 compression format.
Original C implementation at https://github.com/Cyan4973/xxHash

Thanks to compiler improvements, performance is now on par with the original C
implementation:

```
$ ./xxhsum -b
./xxhsum 0.6.5 (64-bits little endian), by <NAME>
Sample of 100 KB...
XXH32               :     102400 ->    63518 it/s ( 6202.9 MB/s)
XXH32 unaligned     :     102400 ->    63626 it/s ( 6213.5 MB/s)
XXH64               :     102400 ->   126702 it/s (12373.3 MB/s)
XXH64 unaligned     :     102400 ->   125901 it/s (12295.0 MB/s)
```

```
$ cargo run --release --bin bench
    Finished release [optimized] target(s) in 0.01s
     Running `target/release/bench`
Hashing 2048MB in 0.351s 0.344s 0.344s
Maximum throughput: 6247 MB/s
```<commit_msg>Remove performance information from readme.<commit_after># xxh32

Rust implementation of the xxh32 hash used in the LZ4 compression format.
Original C implementation at https://github.com/Cyan4973/xxHash
{'fraction_non_alphanumeric': 0.1024390243902439, 'fraction_numerical': 0.12195121951219512, 'mean_word_length': 2.9461538461538463, 'pattern_counts': {'":': 0, '<': 4, '<?xml version=': 0, '>': 8, 'https://': 2, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '6282464', 'n_tokens_mistral': 428, 'n_tokens_neox': 340, 'n_words': 118}