FiniteStateEntropy
| QAT-ZSTD-Plugin | FiniteStateEntropy | |
|---|---|---|
| 2 | 4 | |
| 53 | 1,263 | |
| - | - | |
| 6.4 | 0.0 | |
| 8 months ago | over 1 year ago | |
| C | C | |
| GNU General Public License v3.0 or later | BSD 2-clause "Simplified" License |
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QAT-ZSTD-Plugin
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Intel QuickAssist Technology Zstandard Plugin for Zstandard
Interesting that Intel's code for this includes numerous references to LZ4, as if that's the actual algorithm the hardware originally aimed to accelerate.. So seems like LZ4 and ZSTD are quite similar?
https://github.com/intel/QAT-ZSTD-Plugin/blob/main/src/qatse...
- Intel QuickAssist ZSTD Plugin
FiniteStateEntropy
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Intel QuickAssist Technology Zstandard Plugin for Zstandard
It's obsolete. It's limited to 32KB LZ window with huffman coding. Zstd can use a much larger window (8MB recommended) and a much better entropy coder: https://github.com/Cyan4973/FiniteStateEntropy
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Worries about tANS?
tANS block based : FSE
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Silly Lossy Text Compression Idea
Sounds similar to: https://github.com/Cyan4973/FiniteStateEntropy
https://arxiv.org/abs/1311.2540
> The modern data compression is mainly based on two approaches to entropy coding: Huffman (HC) and arithmetic/range coding (AC). The former is much faster, but approximates probabilities with powers of 2, usually leading to relatively low compression rates. The latter uses nearly exact probabilities - easily approaching theoretical compression rate limit (Shannon entropy), but at cost of much larger computational cost.
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C Deep
FiniteStateEntropy - Two highly efficient compression codecs optimized for modern CPUs. BSD-2-Clause
What are some alternatives?
QATzip - Compression Library accelerated by Intel® QuickAssist Technology
Snappy - A fast compressor/decompressor
TurboBench - Compression Benchmark
zstd - Zstandard - Fast real-time compression algorithm
rapidgzip - Gzip Decompression and Random Access for Modern Multi-Core Machines
zlib-ng - zlib replacement with optimizations for "next generation" systems.
isa-l - Intelligent Storage Acceleration Library
brotli - Brotli compression format
LZFSE - LZFSE compression library and command line tool
qatlib
LZMA - (Unofficial) Git mirror of LZMA SDK releases