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Diffstat (limited to 'contrib/libs/zstd/README.md')
| -rw-r--r-- | contrib/libs/zstd/README.md | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/contrib/libs/zstd/README.md b/contrib/libs/zstd/README.md index 0f7478e106..d91ef5df1b 100644 --- a/contrib/libs/zstd/README.md +++ b/contrib/libs/zstd/README.md @@ -29,10 +29,10 @@ a list of known ports and bindings is provided on [Zstandard homepage](https://f ## Benchmarks For reference, several fast compression algorithms were tested and compared -on a desktop running Ubuntu 20.04 (`Linux 5.11.0-41-generic`), -with a Core i7-9700K CPU @ 4.9GHz, +on a desktop featuring a Core i7-9700K CPU @ 4.9GHz +and running Ubuntu 20.04 (`Linux ubu20 5.15.0-101-generic`), using [lzbench], an open-source in-memory benchmark by @inikep -compiled with [gcc] 9.3.0, +compiled with [gcc] 9.4.0, on the [Silesia compression corpus]. [lzbench]: https://github.com/inikep/lzbench @@ -41,24 +41,23 @@ on the [Silesia compression corpus]. | Compressor name | Ratio | Compression| Decompress.| | --------------- | ------| -----------| ---------- | -| **zstd 1.5.1 -1** | 2.887 | 530 MB/s | 1700 MB/s | +| **zstd 1.5.6 -1** | 2.887 | 510 MB/s | 1580 MB/s | | [zlib] 1.2.11 -1 | 2.743 | 95 MB/s | 400 MB/s | -| brotli 1.0.9 -0 | 2.702 | 395 MB/s | 450 MB/s | -| **zstd 1.5.1 --fast=1** | 2.437 | 600 MB/s | 2150 MB/s | -| **zstd 1.5.1 --fast=3** | 2.239 | 670 MB/s | 2250 MB/s | -| quicklz 1.5.0 -1 | 2.238 | 540 MB/s | 760 MB/s | -| **zstd 1.5.1 --fast=4** | 2.148 | 710 MB/s | 2300 MB/s | -| lzo1x 2.10 -1 | 2.106 | 660 MB/s | 845 MB/s | -| [lz4] 1.9.3 | 2.101 | 740 MB/s | 4500 MB/s | -| lzf 3.6 -1 | 2.077 | 410 MB/s | 830 MB/s | -| snappy 1.1.9 | 2.073 | 550 MB/s | 1750 MB/s | +| brotli 1.0.9 -0 | 2.702 | 395 MB/s | 430 MB/s | +| **zstd 1.5.6 --fast=1** | 2.437 | 545 MB/s | 1890 MB/s | +| **zstd 1.5.6 --fast=3** | 2.239 | 650 MB/s | 2000 MB/s | +| quicklz 1.5.0 -1 | 2.238 | 525 MB/s | 750 MB/s | +| lzo1x 2.10 -1 | 2.106 | 650 MB/s | 825 MB/s | +| [lz4] 1.9.4 | 2.101 | 700 MB/s | 4000 MB/s | +| lzf 3.6 -1 | 2.077 | 420 MB/s | 830 MB/s | +| snappy 1.1.9 | 2.073 | 530 MB/s | 1660 MB/s | [zlib]: https://www.zlib.net/ [lz4]: https://lz4.github.io/lz4/ The negative compression levels, specified with `--fast=#`, offer faster compression and decompression speed -at the cost of compression ratio (compared to level 1). +at the cost of 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. @@ -185,6 +184,17 @@ You can build and install zstd [vcpkg](https://github.com/Microsoft/vcpkg/) depe The zstd port in vcpkg is kept up to date by Microsoft team members and community contributors. If the version is out of date, please [create an issue or pull request](https://github.com/Microsoft/vcpkg) on the vcpkg repository. +### Conan + +You can install pre-built binaries for zstd or build it from source using [Conan](https://conan.io/). Use the following command: + +```bash +conan install --requires="zstd/[*]" --build=missing +``` + +The zstd Conan recipe is kept up to date by Conan maintainers and community contributors. +If the version is out of date, please [create an issue or pull request](https://github.com/conan-io/conan-center-index) on the ConanCenterIndex repository. + ### Visual Studio (Windows) Going into `build` directory, you will find additional possibilities: |