zopfli-rs

Bindings to zopfli for deflate, gzip, and zlib compression.

Purpose

zopfli is already implemented in pure Rust by @carols10cents (carols10cents/zopfli), so it might seem duplicative to create bindings to the original C / C++ library by Google (google/zopfli). In order to give better insights into the performance of the pure Rust library and to give a slightly faster alternative, zopfli-rs was made.

Benchmarks

zopfli-rs just slightly inches ahead of zopfli when it comes to gzip compression. Both zopfli-rs and zopfli follow a strange performance curve that seem to be faster for certain sizes of data (in this case ~10KB is the sweet spot). Changing up the Options would more than likely improve these results, but that would take a bit of time to tweak to perfection.

test bench_zopfli_1 ... bench: 5,026,521 ns/iter (+/- 547,023) test bench_zopfli_10 ... bench: 5,817,841 ns/iter (+/- 585,086) test bench_zopfli_100 ... bench: 19,293,553 ns/iter (+/- 2,106,929) test bench_zopfli_1000 ... bench: 290,497,031 ns/iter (+/- 32,570,971) test bench_zopfli_10000 ... bench: 38,902,158 ns/iter (+/- 6,040,615) test bench_zopfli_100000 ... bench: 301,934,186 ns/iter (+/- 17,868,991) test bench_zopfli_rs_1 ... bench: 2,439,766 ns/iter (+/- 644,219) test bench_zopfli_rs_10 ... bench: 3,299,515 ns/iter (+/- 359,117) test bench_zopfli_rs_100 ... bench: 14,146,432 ns/iter (+/- 1,505,380) test bench_zopfli_rs_1000 ... bench: 209,671,685 ns/iter (+/- 9,135,909) test bench_zopfli_rs_10000 ... bench: 29,229,623 ns/iter (+/- 3,060,932) test bench_zopfli_rs_100000 ... bench: 289,308,248 ns/iter (+/- 13,868,834)