Compatability with lzma2?

[RussStringham]

Can data compressed with fast-lzma2 be decompressed by a binary utilizing the lzma2 library?

[conor42]

Yes it's binary compatible with lzma2.

[mirh]

Igor must have pushed hard for optimizations in the last year or so, because now that I tried again my "6 GB of textures" benchmark, I can get vanilla 7z 22.01 to decompress like 20% faster than this.
EDIT: probably everything from here onwards

[wupengcheng6819]

Especially that now 7z has an ARM assembler decoder.

[wupengcheng6819]

To be fair, I did a small benchmark between fxz and 7z 22 (single-threade decoding), on PC with a total of ~50GB of data.

fxz has a small speed advantage of about 5% to 10% on PC.

However, on ARM64 it's 20%+ slower with my preliminary test, again we are talking about single-thread.