lz4: lz4 (compression algorithm) lz4: lz4: LZ4 is lossless compression algorithm, providing compression lz4: speed at 400 MB/s per core (0.16 Bytes/cycle). It also features lz4: an extremely fast decoder, with speed in multiple GB/s per core lz4: (0.71 Bytes/cycle). A high compression derivative, called LZ4_HC, lz4: is also provided. It trades CPU time for compression ratio. lz4: lz4: lz4: lz4: