bitter
zstd
| bitter | zstd | |
|---|---|---|
| 4 | 106 | |
| 67 | 22,445 | |
| - | 1.5% | |
| 6.9 | 9.7 | |
| 1 day ago | 4 days ago | |
| Rust | C | |
| - | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
bitter
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bitter v0.6 - the performant bit reading library with a new faster API
bitter v0.6 is a pretty major change in the library as the API surface area is much slimmer and additional performance gains have been unlocked by allowing control of when the lookahead buffer is refilled to be passed downstream, so that one can take advantage of patterns in the data they are decoding.
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GitHub - epage/string-benchmarks-rs: Comparison of Rust string types
What I've done for my crates (example #1) is take the csv that criterion generates and formulate better graphs using technologies designed for visualizations (like the R ecosystem).
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Parsing Bitstreams with Rust and Nom
Updated the benchmark with your implementation! You can see the results here: https://github.com/nickbabcock/bitter#comparison-to-other-li...
zstd
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SQLite VFS for ZSTD seekable format
This VFS will read a sqlite file after it has been compressed using [zstd seekable format](https://github.com/facebook/zstd/blob/dev/contrib/seekable_f...). Built to support read-only databases for full-text search. Benchmarks are provided in README.
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Chrome Feature: ZSTD Content-Encoding
Of course, you may get different results with another dataset.
gzip (zlib -6) [ratio=32%] [compr=35Mo/s] [dec=407Mo/s]
zstd (zstd -2) [ratio=32%] [compr=356Mo/s] [dec=1067Mo/s]
NB1: The default for zstd is -3, but the table only had -2. The difference is probably small. The range is 1-22 for zstd and 1-9 for gzip.
NB2: The default program for gzip (at least with Debian) is the executable from zlib. With my workflows, libdeflate-gzip iscompatible and noticably faster.
NB3: This benchmark is 2 years old. The latest releases of zstd are much better, see https://github.com/facebook/zstd/releases
For a high compression, according to this benchmark xz can do slightly better, if you're willing to pay a 10× penalty on decompression.
xz -9 [ratio=23%] [compr=2.6Mo/s] [dec=88Mo/s]
zstd -9 [ratio=23%] [compr=2.6Mo/s] [dec=88Mo/s]
- Zstandard v1.5.6 – Chrome Edition
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Optimizating Rabin-Karp Hashing
Compression, synchronization and backup systems often use rolling hash to implement "content-defined chunking", an effective form of deduplication.
In optimized implementations, Rabin-Karp is likely to be the bottleneck. See for instance https://github.com/facebook/zstd/pull/2483 which replaces a Rabin-Karp variant by a >2x faster Gear-Hashing.
- Show HN: macOS-cross-compiler – Compile binaries for macOS on Linux
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Cyberpunk 2077 dev release
Get the data https://publicdistst.blob.core.windows.net/data/root.tar.zst magnet:?xt=urn:btih:84931cd80409ba6331f2fcfbe64ba64d4381aec5&dn=root.tar.zst How to extract https://github.com/facebook/zstd Linux (debian): `sudo apt install zstd` ``` tar -I 'zstd -d -T0' -xvf root.tar.zst ```
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Honey, I shrunk the NPM package · Jamie Magee
I've done that experiment with zstd before.
https://github.com/facebook/zstd/blob/dev/programs/zstd.1.md...
Not sure about brotli though.
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How in the world should we unpack archive.org zst files on Windows?
If you want this functionality in zstd itself, check this out: https://github.com/facebook/zstd/pull/2349
- Release Zstandard v1.5.5 · facebook/zstd
- ZSTD 1.5.5 is released with a corruption fix found at Google
What are some alternatives?
smartstring - Compact inlined strings for Rust.
LZ4 - Extremely Fast Compression algorithm
libdeflate - Heavily optimized library for DEFLATE/zlib/gzip compression and decompression
Snappy - A fast compressor/decompressor
rsip - SIP Rust library (generator & parser)
LZMA - (Unofficial) Git mirror of LZMA SDK releases
deku - Declarative binary reading and writing: bit-level, symmetric, serialization/deserialization
7-Zip-zstd - 7-Zip with support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard
zune-entropy - Incredibly Spicy Entropy coders
ZLib - A massively spiffy yet delicately unobtrusive compression library.
string-rosetta-rs - Comparison of Rust string types
brotli - Brotli compression format