Let's have a look at a few concrete tests of Leviathan's performance.
All of the tests in this post are run on Windows, x64, on a Core i7-3770. For performance on some other game platforms, see : Leviathan performance on PS4, Xbox One, and Switch .
All the compressors in this test are run on in their slowest encoding level. We're looking for high compression and fast decompression, we're not looking for fast compression here. See @@ for a look at encode times.
Tests are on groups of files. The results show the total compressed size & total decode time over the group of files, but each file is encoded independently. The maximum window size is used for all compressors.
The compressors tested here are :
Kraken8 : Oodle Kraken at level 8 (Optimal4)
Leviathan8 : Oodle Leviathan at level 8 (Optimal4)
lzma_def9 : LZMA -mx9 with default settings (lc3lp0pb2fb32) +d29
lzmalp3pb3fb1289 : LZMA -mx9 with settings that are better on binary and game data (lc0lp3pb3fb128) +d29
zlib9 : zlib 1.2.8 at level 9
LZMA and zlib here were built with MSVC; I also checked there speed in a GCC build and confirmed it is nearly
identical.
Two settings for LZMA are tested to try to give it the best chance of competing with Leviathan. LZMA's default settings tend to be good on text but not great on binary (often even Kraken can beat "lzma_def" on binary structured data). I've also increased LZMA's fast bytes to 128 in the non-default options, the default value of 32 is a bit of a detriment to compression ratio, and most of the competition (ZStd, Brotli, LZHAM) use a value more like 128. I want to give LZMA a great chance to compete; we don't need to play any games with selective testing to make Leviathan look good.
Let the tests begin!
PD3D :
Public Domain 3d game data test set :
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Kraken8 : 4.02:1 , 1.0 enc MB/s , 1013.3 dec MB/s Leviathan8 : 4.21:1 , 0.5 enc MB/s , 732.8 dec MB/s zlib9 : 2.89:1 , 5.2 enc MB/s , 374.5 dec MB/s lzmalp3pb3fb1289: 4.08:1 , 3.4 enc MB/s , 65.4 dec MB/s lzma_def9 : 3.97:1 , 4.3 enc MB/s , 65.4 dec MB/s
Game BCn :
A mix of BCn textures from a game (mostly BC1, BC4, and BC7) :
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Kraken8 : 3.67:1 , 0.7 enc MB/s , 881.0 dec MB/s
Leviathan8 : 3.84:1 , 0.4 enc MB/s , 661.9 dec MB/s
zlib9 : 2.72:1 , 6.2 enc MB/s , 321.5 dec MB/s
lzmalp3pb3fb1289: 3.67:1 , 2.0 enc MB/s , 66.9 dec MB/s
lzma_def9 : 3.68:1 , 2.3 enc MB/s , 67.0 dec MB/s
ASTC testset :
A private corpus of game ASTC texture data :
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Kraken8 : 1.15:1 , 1.7 enc MB/s , 1289.6 dec MB/s
Leviathan8 : 1.17:1 , 1.0 enc MB/s , 675.8 dec MB/s
zlib9 : 1.10:1 , 18.9 enc MB/s , 233.8 dec MB/s
lzma_def9 : 1.17:1 , 6.2 enc MB/s , 21.4 dec MB/s
lzmalp3pb3fb1289: 1.19:1 , 6.1 enc MB/s , 21.4 dec MB/s
gametestset :
A private corpus of game test data :
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Kraken8 : 2.68:1 , 1.0 enc MB/s , 1256.2 dec MB/s
Leviathan8 : 2.83:1 , 0.6 enc MB/s , 915.0 dec MB/s
zlib9 : 1.99:1 , 8.3 enc MB/s , 332.4 dec MB/s
lzmalp3pb3fb1289: 2.76:1 , 3.4 enc MB/s , 46.5 dec MB/s
lzma_def9 : 2.72:1 , 4.2 enc MB/s , 46.3 dec MB/s
Silesia :
Silesia standard public compression test corpus :
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Kraken8 : 4.25:1 , 0.6 enc MB/s , 996.0 dec MB/s
Leviathan8 : 4.35:1 , 0.4 enc MB/s , 804.5 dec MB/s
zlib9 : 3.13:1 , 8.4 enc MB/s , 351.3 dec MB/s
lzmalp3pb3fb1289: 4.37:1 , 1.9 enc MB/s , 80.2 dec MB/s
lzma_def9 : 4.27:1 , 2.6 enc MB/s , 79.0 dec MB/s
brotli24 -11 : 4.21:1 , 310.9 dec MB/s
zstd 1.3.3 -22 : 4.01:1 , 598.2 dec MB/s
(zstd and brotli run in lzbench) (brotli is 2017-12-12)
Read more about Leviathan and Oodle 2.6.0 in these other posts on my blog :
Leviathan Rising
Everything new and tasty in Oodle 2.6.0
Leviathan performance on PS4, Xbox One, and Switch
Leviathan detailed performance report
Oodle Hydra and space-speed flexibility
or visit RAD to read for more information about the Oodle SDK
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