[wqweto]

We use bsc and nanozip for archiving DB backups (usually 1-100GB files) and have not found anything remotely close to these as CPU usage vs compression ratio.

    c:> bsc.exe e "%~1" "%~1.bsc" -b1000 -m4e1t -M4H20

This uses 3GB of RAM and compresses w/ about 300MB/s but is slow on decompression while

    c:> nz.exe a -cd -p2 -m1024m "%~1.nz" "%~1"

uses about 1GB of RAM and compresses w/ about 250MB/s to worse compression ratios but is much faster than bsc on decompression.

Both of these smash zstd and 7-zip on compression and speed -- something like 2x better and 10x faster.