From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gregory Maxwell Subject: Compressor options and speed vs size tradeoff. Date: Mon, 9 Feb 2009 03:23:31 -0500 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 To: linux-btrfs@vger.kernel.org Return-path: List-ID: I ran across an interesting page which reviews the performance of a number of compressors which are already available for the Linux Kernel (zlib, lzop, lzma) and which shows the highest performing compressor choice given the authors test CPU for a variety of data transfer rates, and read vs write ratio. http://users.elis.ugent.be/~wheirman/compression/ It shows that for normal disk speeds (i.e. >200mbit/sec) LZOP of some flavor will yield the greatest performance. (LZMA, however, has considerably greater space savings; but isn't likely to increase overall performance with normal disk)