--- cvsroot/liblzf/Changes 2008/09/02 05:38:29 1.44 +++ cvsroot/liblzf/Changes 2011/03/27 23:53:23 1.54 @@ -1,6 +1,31 @@ + + - switch to a multiplicative hash (developed with Steinar Gunderson), + which is faster on modern cpus and compresses a bit better. The old + hash function which uses only shifts is still available. + - allow user configurable hash table slots, which makes it possible + to use e.g. 16 bit offsets for a smaller hashtable (if your data is + always < 64kb). + - use _WIN32, not WIN32, when testing for windows (fails with bcc), + patch by Tamas Tevesz. + +3.6 Mon Feb 7 17:37:31 CET 2011 + - fixed hash calculation in C♯ version (Tiago Freitas Leal). + - unroll copy for small sizes, use memcpy for larger sizes, + greatly speeding up decompression in most cases. + - finally disable rep movsb - it's a big loss on modern intel cpus, + and only a small win on amd cpus. + - improve C++ compatibility of the code. + - slightly improve compressor speed. + - halved memory requirements for compressor on 64 bit architectures, + which can improve the speed quite a bit on older cpus. + +3.5 Fri May 1 02:28:42 CEST 2009 + - lzf_compress did sometimes write one octet past the given output + buffer (analyzed and nice testcase by Salvatore Sanfilippo). + 3.4 Tue Sep 2 06:45:00 CEST 2008 - the fix from 3.3 introduced a compression bug, which is fixed in - this release (which explains the mysterious prerelease...). thanls + this release (which explains the mysterious prerelease...). Thanks once more to Clément Calmels. 3.3 Mon Aug 25 03:17:42 CEST 2008