Zstandard compression tools
Zstd, short for Zstandard, is a fast lossless compression algorithm,
targeting real-time compression scenarios at zlib-level compression ratio.
Zstd can also offer stronger compression ratios at the cost of compression speed. Speed vs Compression trade-off is configurable by small increments. Decompression speed is preserved and remains roughly the same at all settings, a property shared by most LZ compression algorithms, such as zlib or lzma.
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- Sources inherited from project openSUSE:Factory
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Source Files
| Filename | Size | Changed |
|---|---|---|
| _constraints | 0000000165 165 Bytes | |
| baselibs.conf | 0000000192 192 Bytes | |
| pzstd.1.patch | 0000000784 784 Bytes | |
| zstd-1.5.4.tar.gz | 0002161536 2.06 MB | |
| zstd-1.5.4.tar.gz.sig | 0000000858 858 Bytes | |
| zstd.changes | 0000023979 23.4 KB | |
| zstd.keyring | 0000001668 1.63 KB | |
| zstd.spec | 0000005189 5.07 KB |
Revision 30 (latest revision is 38)
Dominique Leuenberger (dimstar_suse)
accepted
request 1067313
from
Bernhard Wiedemann (bmwiedemann)
(revision 30)
zchunk is already updated to work with zstd-1.5.4
- update to 1.5.4:
* perf: +20% faster huffman decompression for targets that
can't compile x64 assembly
* perf: up to +10% faster streaming compression at levels 1-2
* perf: +4-13% for levels 5-12 by optimizing function
generation
* pref: +3-11% compression speed for `arm` target
* perf: +5-30% faster dictionary compression at levels 1-4
* perf: +10-20% cold dict compression speed by prefetching
CDict tables
* perf: +1% faster compression by removing a branch in
ZSTD_fast_noDict
* perf: Small compression ratio improvements in high
compression mode
* perf: small speed improvement by better detecting
`STATIC_BMI2` for `clang`
* perf: Improved streaming performance when
`ZSTD_c_stableInBuffer` is set
* cli: Asynchronous I/O for improved cli speed
* cli: Change `zstdless` behavior to align with `zless`
* cli: Keep original file if `-c` or `--stdout` is given
* cli: Keep original files when result is concatenated into a
single output with `-o`
* cli: Preserve Permissions and Ownership of regular files
* cli: Print zlib/lz4/lzma library versions with `-vv`
* cli: Print checksum value for single frame files with `-lv`
* cli: Print `dictID` when present with `-lv`
* cli: when `stderr` is *not* the console, disable status
updates, but preserve final summary
* cli: support `--best` and `--no-name` in `gzip` compatibility
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