Zstandard Worked Example

• zstd

  105 22,356 9.7 C

  Zstandard - Fast real-time compression algorithm

  

Thanks for the feedback! I've opened an issue to track this [0]

* Levels 1-19 are the "standard" compression levels.

* Levels 20-22 are the "ultra" levels which require --ultra to use on the CLI. They allocate a lot of memory and are very slow.

* Level 0 is the default compression level, which is 3.

* Levels < 0 are the "fast" compression levels. They achieve speed by turning off Huffman compression, and by "accelerating" compression by a factor. Level -1 has acceleration factor 1, -2 has acceleration factor 2, and so on. So the minimum supported negative compression level is -131072, since the maximum acceleration factor is our block size. But in practice, I wouldn't think a negative level lower than -10 or -20 would be all that useful.

[0] https://github.com/facebook/zstd/issues/3133

• libzstd-seek

  1 16 2.7 C

  A library that mimic fread, fseek and ftell for reading zstd compressed files.

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• ZRA

  1 27 2.7 C++

  ZStandard Random Access (ZRA) allows random access inside an archive compressed using ZStandard

  

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