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UPDATE: DEFLATE algorithm

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Ray
2022-05-18 13:39:07 +02:00
parent 5ecc289201
commit d786af83fc
2 changed files with 119 additions and 100 deletions
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36
src/external/sdefl.h vendored
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@ -38,10 +38,10 @@ this file implementation in *one* C or C++ file to prevent collisions.
| zlib 1.2.11 -1 | 72 MB/s | 307 MB/s | 42298774 | 42.30 |
| zlib 1.2.11 -6 | 24 MB/s | 313 MB/s | 36548921 | 36.55 |
| zlib 1.2.11 -9 | 20 MB/s | 314 MB/s | 36475792 | 36.48 |
| sdefl 1.0 -0 | 127 MB/s | 371 MB/s | 40004116 | 39.88 |
| sdefl 1.0 -1 | 111 MB/s | 398 MB/s | 38940674 | 38.82 |
| sdefl 1.0 -5 | 45 MB/s | 420 MB/s | 36577183 | 36.46 |
| sdefl 1.0 -7 | 38 MB/s | 423 MB/s | 36523781 | 36.41 |
| sdefl 1.0 -0 | 127 MB/s | 355 MB/s | 40004116 | 39.88 |
| sdefl 1.0 -1 | 111 MB/s | 413 MB/s | 38940674 | 38.82 |
| sdefl 1.0 -5 | 45 MB/s | 436 MB/s | 36577183 | 36.46 |
| sdefl 1.0 -7 | 38 MB/s | 432 MB/s | 36523781 | 36.41 |
| libdeflate 1.3 -1 | 147 MB/s | 667 MB/s | 39597378 | 39.60 |
| libdeflate 1.3 -6 | 69 MB/s | 689 MB/s | 36648318 | 36.65 |
| libdeflate 1.3 -9 | 13 MB/s | 672 MB/s | 35197141 | 35.20 |
@ -50,20 +50,20 @@ this file implementation in *one* C or C++ file to prevent collisions.
### Compression
Results on the [Silesia compression corpus](http://sun.aei.polsl.pl/~sdeor/index.php?page=silesia):
| File | Original | `sdefl 0` | `sdefl 5` | `sdefl 7` |
| :------ | ---------: | -----------------: | ---------: | ----------: |
| dickens | 10.192.446 | 4,260,187| 3,845,261| 3,833,657 |
| mozilla | 51.220.480 | 20,774,706 | 19,607,009 | 19,565,867 |
| mr | 9.970.564 | 3,860,531 | 3,673,460 | 3,665,627 |
| nci | 33.553.445 | 4,030,283 | 3,094,526 | 3,006,075 |
| ooffice | 6.152.192 | 3,320,063 | 3,186,373 | 3,183,815 |
| osdb | 10.085.684 | 3,919,646 | 3,649,510 | 3,649,477 |
| reymont | 6.627.202 | 2,263,378 | 1,857,588 | 1,827,237 |
| samba | 21.606.400 | 6,121,797 | 5,462,670 | 5,450,762 |
| sao | 7.251.944 | 5,612,421 | 5,485,380 | 5,481,765 |
| webster | 41.458.703 | 13,972,648 | 12,059,432 | 11,991,421 |
| xml | 5.345.280 | 886,620| 674,009 | 662,141 |
| x-ray | 8.474.240 | 6,304,655 | 6,244,779 | 6,244,779 |
| File | Original | `sdefl 0` | `sdefl 5` | `sdefl 7` |
| --------| -----------| -------------| ---------- | ------------|
| dickens | 10.192.446 | 4,260,187 | 3,845,261 | 3,833,657 |
| mozilla | 51.220.480 | 20,774,706 | 19,607,009 | 19,565,867 |
| mr | 9.970.564 | 3,860,531 | 3,673,460 | 3,665,627 |
| nci | 33.553.445 | 4,030,283 | 3,094,526 | 3,006,075 |
| ooffice | 6.152.192 | 3,320,063 | 3,186,373 | 3,183,815 |
| osdb | 10.085.684 | 3,919,646 | 3,649,510 | 3,649,477 |
| reymont | 6.627.202 | 2,263,378 | 1,857,588 | 1,827,237 |
| samba | 21.606.400 | 6,121,797 | 5,462,670 | 5,450,762 |
| sao | 7.251.944 | 5,612,421 | 5,485,380 | 5,481,765 |
| webster | 41.458.703 | 13,972,648 | 12,059,432 | 11,991,421 |
| xml | 5.345.280 | 886,620 | 674,009 | 662,141 |
| x-ray | 8.474.240 | 6,304,655 | 6,244,779 | 6,244,779 |
## License
```