I don't think gzip can use multiple cores, but there is a parallel implementation of gzip called pigz (race condition pun?) [1] which uses a clever trick [2] no

I don't think gzip can use multiple cores, but there is a parallel implementation of gzip called pigz (race condition pun?) [1] which uses a clever trick [2] not to reduce compression efficiency: > The input blocks, while compressed independently, have the last 32K of the previous block loaded as a preset dictionary to preserve the compression effectiveness of deflating in a single thread [1] https://zlib.net/pigz/ https://zlib.net/pigz/ [2] https://zlib.net/pigz/pigz.pdf https://zlib.net/pigz/pigz.pdf