1 | |
1 | |
|
|
2 | - switch to a multiplicative hash (developed with Steinar Gunderson), |
|
|
3 | which is faster on modern cpus and compresses a bit better. The old |
|
|
4 | hash function which uses only shifts is still available. |
|
|
5 | - allow user configurable hash table slots, which makes it possible |
|
|
6 | to use e.g. 16 bit offsets for a smaller hashtable (if your data is |
|
|
7 | always < 64kb). |
|
|
8 | - use _WIN32, not WIN32, when testing for windows (fails with bcc), |
|
|
9 | patch by Tamas Tevesz. |
|
|
10 | |
|
|
11 | 3.6 Mon Feb 7 17:37:31 CET 2011 |
2 | - fixed hash calculation in C♯ version (Tiago Freitas Leal). |
12 | - fixed hash calculation in C♯ version (Tiago Freitas Leal). |
|
|
13 | - unroll copy for small sizes, use memcpy for larger sizes, |
|
|
14 | greatly speeding up decompression in most cases. |
|
|
15 | - finally disable rep movsb - it's a big loss on modern intel cpus, |
|
|
16 | and only a small win on amd cpus. |
|
|
17 | - improve C++ compatibility of the code. |
|
|
18 | - slightly improve compressor speed. |
|
|
19 | - halved memory requirements for compressor on 64 bit architectures, |
|
|
20 | which can improve the speed quite a bit on older cpus. |
3 | |
21 | |
4 | 3.5 Fri May 1 02:28:42 CEST 2009 |
22 | 3.5 Fri May 1 02:28:42 CEST 2009 |
5 | - lzf_compress did sometimes write one octet past the given output |
23 | - lzf_compress did sometimes write one octet past the given output |
6 | buffer (analyzed and nice testcase by Salvatore Sanfilippo). |
24 | buffer (analyzed and nice testcase by Salvatore Sanfilippo). |
7 | |
25 | |