lzbench
zstd
lzbench | zstd | |
---|---|---|
9 | 106 | |
842 | 22,445 | |
- | 1.5% | |
1.9 | 9.7 | |
about 1 month ago | 5 days ago | |
C | 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.
lzbench
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Chrome Feature: ZSTD Content-Encoding
For a benchmark on a standard set: https://github.com/inikep/lzbench/blob/master/lzbench18_sort...
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My experience with btrfs so far
Do not re-compress your file into level 3. The decompression speed is largely the same between level 3 and 8, so you just wasting CPU doing nothing and making your files larger. See the bottom of the README: https://github.com/inikep/lzbench
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Rsyncing 20TB locally
You can crunch the numbers yourself with this: https://github.com/inikep/lzbench
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Lizard – efficient compression with fast decompression
Note that a benchmark in the README refers to zstd 1.1.1 and brotli 0.5.2, which are very old (the current versions are zstd 1.5.2 and brotli 1.0.9). The same author maintains lzbench [1], which is more or less up-to-date.
[1] https://github.com/inikep/lzbench
- What scientists must know about hardware to write fast code
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Zip-Ada development on LZMA compression
u/zertillon, maybe you could use lzbench, so you could compare it with a lot of other compression libraries. The problem is that it requires including the library in a single executable, so it might be more difficult to integrate than a C library (the benchmark is in C++).
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Is there any site that lists the current SOTA for lossless compression?
Still updated: https://github.com/inikep/lzbench
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will ZSTD impact L2ARC performance?
If you want to know the size a VM will compress to,. Zstd can be installed on any machine, so you can experiment easily. You can even run the benchmark https://github.com/inikep/lzbench
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Save disk space for your games: BTRFS filesystem compression as alternative to CompactGUI on Linux
Are you sure about that? That's not what I see on https://github.com/inikep/lzbench and I tried to run that myself, although I have no idea which lzo to try so I went with what seemed the fastest...
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?
7-Zip-zstd - 7-Zip with support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard
LZ4 - Extremely Fast Compression algorithm
CompactGUI - Transparently compress active games and programs using Windows 10/11 APIs [Moved to: https://github.com/IridiumIO/CompactGUI]
Snappy - A fast compressor/decompressor
CompactGUI - Transparently compress active games and programs using Windows 10/11 APIs
LZMA - (Unofficial) Git mirror of LZMA SDK releases
11Zip - Dead simple zipping / unzipping C++ Lib
qemu
ZLib - A massively spiffy yet delicately unobtrusive compression library.
zip-ada - Zip-Ada: a standalone, portable Ada library for .zip archives. Includes LZMA byte stream encoder & decoder pair.
brotli - Brotli compression format