Pigz is backward compatible — it breaks the input into 128K chunks, compresses each in parallel, and concatenates them. Gzip supports naive concatenation of com

Pigz is backward compatible — it breaks the input into 128K chunks, compresses each in parallel, and concatenates them. Gzip supports naive concatenation of compressed files so the result can be decompressed by standard gzip. Pigz does not implement parallel decompression, but pigz-compressed files could, in principle, be decompressed in parallel. I assume there's not much urgency for this because gzip decompression is fast enough: >3x faster than compression and >10x faster than bzip2 decompression on default settings. (See: https://quixdb.github.io/squash-benchmark/ https://quixdb.github.io/squash-benchmark/ )