| Versions tested: | 0.94, 0.94a, 0.94b, 0.95 |
| Rating: | 47 |
| Performance C/D: | 54/13 |
| Optimal parameters: | -43 |
| Links: | lzturbo.zip lzturbo094b.zip lzturbo095.zip lzturbo-0.94b-unlzturbo5.zip |
| Authors: | Hamid Buzidi |
| Algorithms: | LZ+HUF, LZ+ARI |
| Notable peformances: | Application1, Application3, Database1, Game1, Game2, Image1, Image2, Medical1, Medical2, OS1, PGN1, Pitches1, Qualifying1, Source1, Text1, Text2 |
Lzturbo is a high performance lz77 based compressor featuring parallel compression/decompression and overlapping i/o. Lzturbo is specially designed for modern processors and multicore systems.the program documentationFeatures:
- Compress/decompress as easy as the copy command. No archive/solid files needed.
- Parallel and linear scalable compression/decompression on multiprocessor/multicore systems.
- Overlapping i/o with compression/decompression.
- Parallel compression/decompression of multiple files.
- State of the art optimal parsing with high compression ratio and fast compression.
- Very fast compression/decompression (No other compression program compress and decompress faster with better compression).
- lzturbo is the only compressor that can use modern multiprocessor/multicore systems at 100% load.
The author submitted the following configurations in April 11, 2009:
- Benchmark fast compression time: -10, -11, -21, -31, -41
- Benchmark fast decompression: -19, -29, -39
- Benchmark efficiency: -43, -44
- Benchmark highest compression: -59
(Have info that should be added here? E-mail.)
0.94 disqualified: the program crashes at startup when compressing (displays help screen when launched without parameters).
0.94 April 13, 2009 version is listed as 0.94a. -19, -29, -39 crash in Application1.
0.94 April 15, 2009 version is listed as 0.94b with only -19, -29, -39, -59 tested as the author requested. For -59 decoding we use the lzturbo-0.94b-unlzturbo5.zip program with -d -p0.
| Ver | Rating | CPR | DPR | S.E. | R.E. | Ratio | C. kB/s | D. kB/s | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CompressionRatings.Com | ||||||||||||
| -10 | ||||||||||||
| 0.94a | 0 | 0 | 0 | 1469 | 0 | 1.953 | 80401 | 124935 | ||||
| 0.95 | 0 | +4.6% | 1.954 | +0% | 85604 | +6.5% | 125995 | +0.8% | ||||
| -11 | ||||||||||||
| 0.94a | 1 | 2 | 0 | 1793 | 0 | 2.094 | 60288 | 121562 | ||||
| 0.95 | 1 | +1.8% | 2.095 | +0% | 60688 | +0.7% | 125218 | +3.0% | ||||
| -19 | ||||||||||||
| 0.94b | 3 | 2 | 39 | 78 | 0 | 2.916 | 383 | 98739 | ||||
| 0.95 | 2 | - | +2.6% | -2.6% | 2.918 | +0% | 373 | -2.6% | 99793 | +1.1% | ||
| -21 | ||||||||||||
| 0.94a | 3 | 5 | 0 | 1953 | 0 | 2.204 | 51915 | 93892 | ||||
| 0.95 | 4 | + | + | +1.8% | 2.205 | +0% | 53796 | +3.6% | 91780 | -2.2% | ||
| -29 | ||||||||||||
| 0.94b | 6 | 6 | 74 | 97 | 0 | 3.111 | 373 | 81438 | ||||
| 0.95 | 6 | 0% | -1.0% | 3.113 | +0% | 367 | -1.6% | 81032 | -0.5% | |||
| -31 | ||||||||||||
| 0.94a | 13 | 23 | 1 | 2186 | 0 | 2.436 | 41050 | 51623 | ||||
| 0.95 | 14 | + | +4.3% | +3.0% | 2.437 | +0% | 41829 | +1.9% | 53481 | +3.6% | ||
| -39 | ||||||||||||
| 0.94b | 13 | 12 | 103 | 118 | 0 | 3.301 | 365 | 56320 | ||||
| 0.95 | 13 | +3.9% | 0% | 3.304 | +0% | 366 | +0.3% | 57928 | +2.9% | |||
| -41 | ||||||||||||
| 0.94a | 17 | 35 | 1 | 1677 | 0 | 2.557 | 29058 | 27225 | ||||
| 0.95 | 17 | 0% | -2.9% | -3.1% | 2.560 | +0.1% | 28095 | -3.3% | 26190 | -3.8% | ||
| -43 | ||||||||||||
| 0.94a | 47 | 54 | 13 | 1143 | 0 | 2.937 | 6527 | 30574 | ||||
| 0.95 | 46 | -2.1% | -1.9% | -2.9% | 2.940 | +0.1% | 6303 | -3.4% | 29844 | -2.4% | ||
| -44 | ||||||||||||
| 0.94a | 24 | 27 | 8 | 792 | 0 | 2.847 | 4908 | 29859 | ||||
| 0.95 | 24 | 0% | -3.7% | -2.3% | 2.849 | +0% | 4783 | -2.5% | 29019 | -2.8% | ||
| -59 | ||||||||||||
| 0.94b | 23 | 22 | 99 | 81 | 2 | 3.733 | 169 | 14229 | ||||
| 0.95 | 32 | +39% | +41% | +21% | +54% | 3.682 | -1.4% | 273 | +62% | 19793 | +39% | |
| Ver | Rating | CPR | DPR | S.E. | R.E. | Ratio | C. kB/s | D. kB/s | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CompressionRatings.Com | ||||||||||||
| -10 | ||||||||||||
| 0.94 | crash while compressing | |||||||||||
| -11 | ||||||||||||
| 0.94 | crash while compressing | |||||||||||
| -19 | ||||||||||||
| 0.94 | crash while compressing | |||||||||||
| 0.94a | crash while decompressing | |||||||||||
| -21 | ||||||||||||
| 0.94 | crash while compressing | |||||||||||
| -29 | ||||||||||||
| 0.94 | crash while compressing | |||||||||||
| 0.94a | crash while decompressing | |||||||||||
| -31 | ||||||||||||
| 0.94 | crash while compressing | |||||||||||
| -39 | ||||||||||||
| 0.94 | crash while compressing | |||||||||||
| 0.94a | crash while decompressing | |||||||||||
| -41 | ||||||||||||
| 0.94 | crash while compressing | |||||||||||
| -43 | ||||||||||||
| 0.94 | crash while compressing | |||||||||||
| -44 | ||||||||||||
| 0.94 | crash while compressing | |||||||||||
| -59 | ||||||||||||
| 0.94 | crash while compressing | |||||||||||
| 0.94a | crash while decompressing | |||||||||||