| Versions tested: | 0.95, 1.0 |
| Optimal parameters: | -43 |
| Links: | lzturbo-1.0.zip lzturbo.zip lzturbo094b.zip lzturbo095.zip lzturbo-0.94b-unlzturbo5.zip |
| Authors: | Hamid Buzidi |
| Algorithms: | LZ+HUF, LZ+ARI |
| Notable peformances: | Application1, Application3, Application4, Database1, Game1, Game2, Image1, Medical1, Medical2, OS1, PGN1, Pitches1, Qualifying1, Qualifying2, 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
The author suggested to run -x9 configurations with -p0 and confirmed the program is unstable. (April 22. 2010)
(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 | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| -10 | ||||||||||||
| 0.95 | 4 | 8 | 0 | 617 | 0 | 2.128 | 301129 | 321786 | ||||
| -41 | ||||||||||||
| 0.95 | 112 | 194 | 18 | 1059 | 0 | 2.732 | 159760 | 182052 | ||||
| -43 | ||||||||||||
| 0.95 | 113 | 126 | 52 | 524 | 0 | 2.957 | 37311 | 184017 | ||||
| -44 | ||||||||||||
| 0.95 | 87 | 92 | 53 | 428 | 0 | 2.938 | 29788 | 201847 | ||||
| -p0 -19 | ||||||||||||
| 0.95 | 3 | 2 | 76 | 16 | 0 | 2.926 | 999 | 306951 | ||||
| -p0 -29 | ||||||||||||
| 0.95 | 7 | 6 | 168 | 20 | 0 | 3.119 | 1017 | 309754 | ||||
| -p0 -39 | ||||||||||||
| 0.95 | 13 | 12 | 294 | 24 | 0 | 3.303 | 1000 | 280991 | ||||
| -p0 -59 | ||||||||||||
| 0.95 | 29 | 27 | 391 | 25 | 2 | 3.670 | 737 | 123074 | ||||
| Ver | Rating | CPR | DPR | S.E. | R.E. | Ratio | C. kB/s | D. kB/s | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| -10 | ||||||||||||
| 1.0 | crash while decompressing (txt2) | |||||||||||
| -10 -b1 | ||||||||||||
| 1.0 | crash while decompressing (txt2) | |||||||||||
| -10 -b64k | ||||||||||||
| 1.0 | verify error (txt2) | |||||||||||
| -11 | ||||||||||||
| 0.95 | crash while compressing (q1) | |||||||||||
| 1.0 | crash while decompressing (txt2) | |||||||||||
| -12 | ||||||||||||
| 1.0 | crash while decompressing (txt2) | |||||||||||
| -19 -b10 | ||||||||||||
| 0.95 | crash while compressing (src1) | |||||||||||
| -20 | ||||||||||||
| 1.0 | crash while decompressing (txt2) | |||||||||||
| -20 -b1 | ||||||||||||
| 1.0 | crash while decompressing (txt2) | |||||||||||
| -20 -b64k | ||||||||||||
| 1.0 | crash while decompressing (txt2) | |||||||||||
| -21 | ||||||||||||
| 0.95 | crash while compressing (q1) | |||||||||||
| 1.0 | crash while decompressing (txt2) | |||||||||||
| -22 | ||||||||||||
| 1.0 | crash while decompressing (txt2) | |||||||||||
| -30 | ||||||||||||
| 1.0 | crash while decompressing (txt2) | |||||||||||
| -31 | ||||||||||||
| 0.95 | crash while compressing (q1) | |||||||||||
| 1.0 | crash while decompressing (txt2) | |||||||||||
| -32 | ||||||||||||
| 1.0 | crash while decompressing (txt2) | |||||||||||
| -39 -b10 | ||||||||||||
| 0.95 | crash while compressing (src1) | |||||||||||
| -42 -D19 -b64 | ||||||||||||
| 0.95 | crash while compressing (app1) | |||||||||||