It's noticeably faster, about 20% more than earlier "Fusion" version, which makes it close to 40MB/s. Not too bad considering it is a full search. The new version 0.8 can be downloaded on LZ4 Homepage.
While working on the multi-level promotion improvement, i made a small mistake in the length counter loop, which made me discover a new trick about buffer management. Thanks to this trick, less verifications are necessary, and therefore speed is a little bit increased. This trick can be re-used in many other context, and as a consequence, can be speed up LZ4 Ultra-Fast too, which make it even faster. So you'll find a new version of LZ4 too. Funny how new ideas are sometimes discovered ...
| version | Compression Ratio | Speed | Decoding | |
| LZ4 "Ultra Fast" | 0.5 | 2.062 | 232 MB/s | 780 MB/s |
| LZ4HC "High Compression" | 0.8 | 2.345 | 38.2 MB/s | 835 MB/s |
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