Heavily optimized library for DEFLATE/zlib/gzip compression and decompression
active 2023-08-15 → 2026-08-30 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 1112 days from 2023-08-15 to 2026-08-30. Pushes: 191 total, peak 13 in a day. Pull requests: 133 total, peak 5 in a day. Issues: 76 total, peak 3 in a day. Comments: 221 total, peak 12 in a day. Stars: 343 total, peak 5 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| ebiggers | 434 | 191 | 113 | 96 |
| pps83 | 30 | 0 | 4 | 22 |
| sisong | 12 | 0 | 1 | 9 |
| barracuda156 | 11 | 0 | 0 | 10 |
| thatsafunnyname | 8 | 0 | 0 | 6 |
| lambdadog | 8 | 0 | 2 | 5 |
| tansy | 8 | 0 | 0 | 7 |
| Treata11 | 8 | 0 | 3 | 3 |
| musicinmybrain | 7 | 0 | 0 | 5 |
| AJenbo | 5 | 0 | 0 | 4 |
| ghuls | 5 | 0 | 0 | 5 |
| ffreality | 4 | 0 | 0 | 2 |
| LucasSloan | 4 | 0 | 1 | 3 |
| leleliu008 | 4 | 0 | 0 | 3 |
| andrews05 | 4 | 0 | 0 | 2 |
| osevan | 4 | 0 | 0 | 3 |
| goodpaperman | 3 | 0 | 0 | 1 |
| geertbleyen | 3 | 0 | 0 | 2 |
| uNetworkingAB | 3 | 0 | 0 | 2 |
| th-otto | 3 | 0 | 1 | 2 |
Recent activity
Latest issues, pull requests and releases
- Issue comment#453ebiggers2026-05-17 03:34lib/arm/cpu_features: prefer PMULL CRC-32 on Linux Neoverse V-class
- Issue comment#452catap2026-05-12 01:25Add hellishly slow level 13 compression
- Issue comment#451thatsafunnyname2026-05-01 11:23Incorrect LIBDEFLATE_BAD_DATA because of _mm512_dpbusd_epi32 behaving incorrectly on some CPUs on a AMD EPYC 9384X 32-Core host.
- Issue comment#451ebiggers2026-05-01 00:18Incorrect LIBDEFLATE_BAD_DATA because of _mm512_dpbusd_epi32 behaving incorrectly on some CPUs on a AMD EPYC 9384X 32-Core host.
- Pull request#450tfenne2026-04-03 17:26
- Pull request#448Scottcjn2026-03-16 03:59
- Issue comment#445ebiggers2026-02-12 00:48Compile error due to false positive AVX512 detection with llvm-mingw64
- Issue comment#438ebiggers2026-01-16 03:21Missing DLLs
- Issue#438ebiggers2026-01-16 03:10Missing DLLs
- Pull request#443ebiggers2026-01-16 03:10
- Issue#422ebiggers2026-01-16 01:20Make install optional depending if subproject
- Pull request#441ebiggers2026-01-16 00:35
- Issue#408ebiggers2026-01-16 00:25Do not unconditionally set `CMAKE_C_FLAGS_RELEASE`
- Issue#408ebiggers2026-01-15 23:52Do not unconditionally set `CMAKE_C_FLAGS_RELEASE`
- Pull request#440ebiggers2026-01-15 23:45
- Issue comment#430tansy2025-12-25 00:21The tests are failing when using uutils/coreutils
- Issue comment#376sergeevabc2025-12-05 07:20Static builds and exported symbols
- Issue#437McTwist2025-11-30 12:31Add support for zlib -1 compression level
- Releaseebiggers2025-11-01 04:04v1.25
- Pull request#436ebiggers2025-11-01 03:49
- Pull request#435ebiggers2025-09-15 16:59
- Pull request#434NeroBurner2025-09-15 06:27
- Issue comment#433ebiggers2025-07-26 22:13Add a compile-time option to disable the use of the AVX instructions
- Issue comment#433ebiggers2025-07-26 22:03Add a compile-time option to disable the use of the AVX instructions
- Issue comment#433filmil2025-07-26 21:29Add a compile-time option to disable the use of the AVX instructions
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 343 stars here means stars gained during the window, not the repo's star count.