The testing has been performed on Windows 7x64 host with Ubuntu 18.04 x64 virtual machine with 8Gb RAM and 4 cores, Intel-VT enabled.
Host:
- CPU: Intel Core i7-4790 3.6 GHz 4 cores / 8 threads
- RAM: 32 Gb
AVX2 is used whenever possible.
Full release optimizations.
Compress/Decompress is used over several files:
mondial-3.0.xml (1'784'825 bytes)
mondial-3.0-mini.xml (1'174'507 bytes)
mondial-3.0-mini.xml.lz4 (187'707 bytes)
mondial-3.0.json (3'580'567 bytes)
mondial-3.0-mini.json (1'174'212 bytes)
mondial-3.0-mini.json.lz4 (190'047 bytes)
1'000 cycles per test.
All tests use 1 core.
Test results are given in milliseconds of total execution time (compress/decompress), in descending order, worst to best.
You can find links to the algorithms' web pages in the first comments of the corresponding main source files.
| Language | Author | File | Ratio | Time, ms |
|---|---|---|---|---|
| rust | zip-store | mondial-3.0.xml | 100% | 354 / 659 |
| rust | zstd lvl1 | mondial-3.0.xml | 10% | 3236 / 1227 |
| rust | zip-zstd lvl+1 | mondial-3.0.xml | 10% | 3466 / 1959 |
| rust | zip-zstd lvl-6 | mondial-3.0.xml | 16% | 2722 / 1765 |
| rust | lz4 lvl2 | mondial-3.0.xml | 16% | 2238 / 871 |
| rust | zip>lz4 lvl2 | mondial-3.0.xml | 16% | 2592 / 1530 |
| :-------: | :---------: | :---------: | :---------: | :---------: |
| rust | zip-store | mondial-3.0-mini.xml | 100% | 208 / 435 |
| rust | zstd lvl1 | mondial-3.0-mini.xml | 14% | 2718 / 994 |
| rust | zip-zstd lvl+1 | mondial-3.0-mini.xml | 14% | 2758 / 1590 |
| rust | zip-zstd lvl-6 | mondial-3.0-mini.xml | 21% | 2167 / 1313 |
| rust | lz4 lvl2 | mondial-3.0-mini.xml | 21% | 1875 / 605 |
| rust | zip>lz4 lvl2 | mondial-3.0-mini.xml | 21% | 2083 / 1040 |
| :-------: | :---------: | :---------: | :---------: | :---------: |
| rust | zip-store | mondial-3.0.json | 100% | 1237 / 1899 |
| rust | zstd lvl1 | mondial-3.0.json | 6% | 4597 / 1777 |
| rust | zip-zstd lvl+1 | mondial-3.0.json | 6% | 4651 / 3561 |
| rust | zip-zstd lvl-6 | mondial-3.0.json | 10% | 3971 / 3574 |
| rust | lz4 lvl2 | mondial-3.0.json | 10% | 3715 / 1734 |
| rust | zip>lz4 lvl2 | mondial-3.0.json | 10% | 4952 / 3633 |
| :-------: | :---------: | :---------: | :---------: | :---------: |
| rust | zip-store | mondial-3.0-mini.json | 100% | 269 / 420 |
| rust | zstd lvl1 | mondial-3.0-mini.json | 14% | 2725 / 1022 |
| rust | zip-zstd lvl+1 | mondial-3.0-mini.json | 14% | 2824 / 1546 |
| rust | zip-zstd lvl-6 | mondial-3.0-mini.json | 21% | 2188 / 1294 |
| rust | lz4 lvl2 | mondial-3.0-mini.json | 22% | 1962 / 639 |
| rust | zip>lz4 lvl2 | mondial-3.0-mini.json | 22% | 2231 / 1059 |
- zstd has ~x1.5 slower compression than lz4
- zstd has ~x1.5 better compression rate than lz4
- When combined with zip-store, lz4 has less speed ratio, so zip>zstd or zip-zstd seem to be the best choices as theese are better than zip>lz4.