lz4 是个无损压缩算法。在双核的CPU下运行，每个核的压缩速度为400 MB/s 。他也是一个非常快的解压缩算法，特别是在RAM运行速度达到极限。-LZ4 is lossless compression algorithm, providing compression speed at 400 MB/s per core, scalable with multi-cores CPU. It also features an extremely fast decoder, with speed