Show HN: misa77 - a codec that decodes 2x faster than LZ4 (at better ratios)

1 min read

I've spent the last few months working on this codec.

It has the following characteristics:

- SOTA decompression throughput in its ratio class

- Decent ratios (comparable to LZ4 at high effort levels)

- Slow compression

Most of the gains can be attributed to reducing branches and making decompression very friendly to out-of-order cores, by using a smart format.

Results on the tarred silesia corpus on Intel x86-64 follow:

codec decode ratio encode

misa77 -0 5219