README
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Iguana Benchmark Tool
Just run iguanabench <file>.
The -t flag indicates the size reduction threshold at which entropy coding is used.
Providing -t 0 disables entropy coding entirely, and -t 1 enables it unconditionally as long as it results in any size reduction at all.
Results
These are the results we get on a Xeon Gold 5320 with lz4 v1.9.4 and zstd v1.5.2 with the Silesia compression corpus:
| Program | Ratio | Decompression Speed |
|---|---|---|
| zstd -b3 | 3.186 | 943.9 MB/s |
| zstd -b9 | 3.574 | 1015.8 MB/s |
| zstd -b18 | 3.967 | 910.6 MB/s |
| lz4 -b1 | 2.101 | 3493.8 MB/s |
| lz4 -b5 | 2.687 | 3323.5 MB/s |
| lz4 -b9 | 2.721 | 3381.5 MB/s |
| iguana -t=0 | 2.58 | 4450 MB/s |
| iguana -t=1 | 3.11 | 2260 MB/s |
As you can see, iguana with entropy coding enabled (-t 1) has a similar
compression ratio to zstd -3, but it decompresses more than twice as quickly.
With entropy coding disabled (-t 0), iguana has a compression ratio roughly
equivalent to lz4 -5 and decompresses about 33% faster.
Documentation
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Source Files
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