| Versions tested: | 0.9, 1.0, 1.3 |
| Optimal parameters: | -c2t4 |
| Links: | http://fastcompressi... lz4-1.3.zip lz4-1.0.zip lz4-0.9.zip |
| Authors: | Yann Collet |
| Algorithms: | LZ |
| Notable peformances: | Application3, Image1, Qualifying1 |
Version 0.9 was submitted on February 27, 2011. Multi-threading optimizations. (-t defines number of threads.)
v1.0 was submitted on September 18, 2011.
v1.3 was submitted on October 17, 2011. Changes include: "-c1 mode can now be multithreaded, -c2 mode is slightly faster, new dynamic memory allocation strategy should use less memory (especially for decoding)".
(Have info that should be added here? E-mail.)
Note that we use identical -t switch for decompression.
| Ver | Rating | CPR | DPR | S.E. | R.E. | Ratio | C. kB/s | D. kB/s | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| -c0t1 (-t1) | ||||||||||||
| 0.9 | 1 | 1 | 0 | 404 | 0 | 1.962 | 232785 | 487694 | ||||
| 1.0 | 1 | +22% | 1.975 | +0.7% | 275396 | +18% | 557557 | +14% | ||||
| -c0t4 (-t4) | ||||||||||||
| 0.9 | 1 | 3 | 0 | 632 | 0 | 1.962 | 500883 | 485344 | ||||
| 1.0 | 2 | + | +15% | 1.975 | +0.7% | 545847 | +9.0% | 550133 | +13% | |||
| -c1t1 | ||||||||||||
| 1.0 | 2 | 2 | 2 | 167 | 0 | 2.226 | 35746 | 560564 | ||||
| -c2t4 | ||||||||||||
| 1.0 | 5 | 5 | 3 | 306 | 0 | 2.278 | 61131 | 551640 | ||||
| -t2 | ||||||||||||
| 0.9 | 1 | 2 | 0 | 566 | 0 | 1.962 | 400582 | 491188 | ||||
| Ver | Rating | CPR | DPR | S.E. | R.E. | Ratio | C. kB/s | D. kB/s | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| -c0t1 (-t1) | ||||||||||||
| 1.3 | crash while decompressing (app1) | |||||||||||
| -c0t2 | ||||||||||||
| 1.3 | crash while decompressing (app1) | |||||||||||
| -c0t3 | ||||||||||||
| 1.3 | crash while decompressing (app1) | |||||||||||
| -c0t4 (-t4) | ||||||||||||
| 1.3 | crash while decompressing (app1) | |||||||||||
| -c1t4 | ||||||||||||
| 1.3 | crash while decompressing (app1) | |||||||||||
| -c2t4 | ||||||||||||
| 1.3 | crash while decompressing (app1) | |||||||||||