| 1 | 2.2 |
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2 | - include a workaround for a compiler bug on 64 bit windows |
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3 | (microsoft claims to support POSIX, but is far from it). |
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4 | (analysed nicely by John Lilley). |
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5 | |
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6 | 3.1 Fri Nov 30 11:33:04 CET 2007 |
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7 | - IMPORTANT BUGFIX: a too long final literal run would corrupt data |
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8 | in the encoder (this was introduced in 3.0 only, earlier versions |
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9 | are safe). |
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10 | |
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11 | 3.0 Tue Nov 13 22:13:09 CET 2007 |
| 2 | - switched to GPL v2 or any later version. |
12 | - switched to 2-clause bsd with "GPL v2 or any later version" option. |
| 3 | - speed up compression by ~10-15% in common cases |
13 | - speed up compression by ~10-15% in common cases |
| 4 | by some manual unrolling. |
14 | by some manual unrolling. |
| 5 | - import some compiler tricks from JSON::XS. |
15 | - import some compiler tricks from JSON::XS, for further speed-ups. |
| 6 | - tune hash functions depending on ULTRA_FAST or VERY_FAST settings. |
16 | - tune hash functions depending on ULTRA_FAST or VERY_FAST settings. |
| 7 | - for typical binary data (e.g. /bin/bash, memory dumps, |
17 | - for typical binary data (e.g. /bin/bash, memory dumps, |
| 8 | canterbury corpus etc.), speed is now comparable to fastlz, but |
18 | canterbury corpus etc.), speed is now comparable to fastlz, but |
| 9 | with better compression ratio. with ULTRA_FAST, it's typically |
19 | with better compression ratio. with ULTRA_FAST, it's typically |
| 10 | 3-15% faster than fastlz while still maintaining a similar ratio. |
20 | 3-15% faster than fastlz while still maintaining a similar ratio. |
| 11 | (amd64 and core 2 duo, ymmv). thanks a lot for the competition :) |
21 | (amd64 and core 2 duo, ymmv). thanks a lot for the competition :) |
| 12 | - undo inline assembly, it is no longer helpful. |
22 | - undo inline assembly in compressor, it is no longer helpful. |
| 13 | - no changes to the decompressor. |
23 | - no changes to the decompressor. |
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24 | - use a HLOG of 16 by default now (formerly 15). |
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25 | |
| 15 | 2.1 Fri Nov 2 13:34:42 CET 2007 |
26 | 2.1 Fri Nov 2 13:34:42 CET 2007 |
| 16 | - switched to a 2-clause bsd license with GPL exception. |
27 | - switched to a 2-clause bsd license with GPL exception. |
| 17 | - get rid of memcpy. |
28 | - get rid of memcpy. |
| 18 | - tentatively use rep movsb on x86 and x86_64 (gcc only) for a |
29 | - tentatively use rep movsb on x86 and x86_64 (gcc only) for a |
