| Age | Commit message (Collapse) | Author | |
|---|---|---|---|
| 2020-08-31 | Rename ZLIB_INTERNAL to Z_INTERNAL for consistency. | Nathan Moinvaziri | |
| 2019-07-18 | Add zng_ prefix to internal functions to avoid linking conflicts with zlib. ↵ | Nathan Moinvaziri | |
| (#363) | |||
| 2019-03-21 | move INFFAST_CHUCKSIZE code to memcopy.h | Sebastian Pop | |
| 2018-12-18 | bug #117: speed up inflate_fast | Sebastian Pop | |
| Based on a patch by Nigel Tao: https://github.com/madler/zlib/pull/292/commits/e0ff1f330cc03ee04843f857869b4036593ab39d This patch makes unzipping of files up to 1.2x faster on x86_64. The other part (1.3x speedup) of the patch by Nigel Tao is unsafe as discussed in the review of that pull request. zlib-ng already has a different way to optimize the memcpy for that missing part. The original patch was enabled only on little-endian machines. This patch adapts the loading of 64 bits at a time to big endian machines. Benchmarking notes from Hans Kristian Rosbach: https://github.com/zlib-ng/zlib-ng/pull/224#issuecomment-444837182 Benchmark runs: 7, tested levels: 0-7, testfile 100M develop at 796ad10 with -O3: Level Comp Comptime min/avg/max Decomptime min/avg/max 0 100.02% 0.01/0.01/0.02 0.08/0.09/0.11 1 47.08% 0.49/0.50/0.51 0.37/0.39/0.40 2 36.02% 1.10/1.12/1.13 0.39/0.39/0.40 3 34.77% 1.32/1.34/1.37 0.38/0.38/0.38 4 33.41% 1.50/1.53/1.56 0.37/0.37/0.38 5 33.07% 1.85/1.87/1.90 0.36/0.37/0.38 6 32.83% 2.54/2.57/2.61 0.36/0.37/0.38 avg 45.31% 1.28 0.34 tot 62.60 16.58 PR224 with -O3: Level Comp Comptime min/avg/max Decomptime min/avg/max 0 100.02% 0.01/0.01/0.02 0.09/0.09/0.10 1 47.08% 0.49/0.50/0.51 0.37/0.37/0.38 2 36.02% 1.09/1.11/1.13 0.38/0.38/0.39 3 34.77% 1.32/1.34/1.38 0.35/0.36/0.38 4 33.41% 1.49/1.52/1.54 0.36/0.36/0.37 5 33.07% 1.85/1.88/1.93 0.35/0.36/0.37 6 32.83% 2.55/2.58/2.65 0.35/0.35/0.36 avg 45.31% 1.28 0.33 tot 62.48 16.02 So I see about a 5.4% speedup on my x86_64 machine, not quite the 1.2x speedup but a nice speedup nevertheless. This benchmark measures the total execution time of minigzip, so that might have caused some inefficiencies. At -O2, I only see a 2.7% speedup. | |||
| 2018-01-31 | Adapt code to support PREFIX macros and update build scripts | Mika Lindqvist | |
| 2017-03-24 | Inflate using wider loads and stores and a minimum of branches. (#95) | Simon Hosie | |
| * Inflate using wider loads and stores. In inflate_fast() the output pointer always has plenty of room to write. This means that so long as the target is capable, wide un-aligned loads and stores can be used to transfer several bytes at once. When the reference distance is too short simply unroll the data a little to increase the distance. Change-Id: I59854eb25d2b1e43561c8a2afaf9175bf10cf674 | |||
| 2015-12-14 | Type cleanup. | Mika Lindqvist | |
| 2015-05-25 | Style cleanup for inflate code | Hans Kristian Rosbach | |
| 2015-04-26 | Cleanup: Replace 'z_streamp' with 'z_stream *' | Hans Kristian Rosbach | |
| 2014-10-12 | Remove workarounds for non-ANSI-C compatible compilers (Part 2) | hansr | |
| -Removing usage of OF() definition | |||
| 2011-09-09 | zlib 1.2.5 | Mark Adler | |
| 2011-09-09 | zlib 1.2.4.5 | Mark Adler | |
| 2011-09-09 | zlib 1.2.0.5 | Mark Adler | |
| 2011-09-09 | zlib 1.2.0 | Mark Adler | |
| 2011-09-09 | zlib 1.1.4 | Mark Adler | |
| 2011-09-09 | zlib 1.0.7 | Mark Adler | |
| 2011-09-09 | zlib 1.0.4 | Mark Adler | |
| 2011-09-09 | zlib 1.0.1 | Mark Adler | |
| 2011-09-09 | zlib 1.0-pre | Mark Adler | |
| 2011-09-09 | zlib 0.99 | Mark Adler | |
| 2011-09-09 | zlib 0.94 | Mark Adler | |
| 2011-09-09 | zlib 0.79 | Mark Adler | |
 |
index : Project-1CE/external_zlib-ng | |
| Unnamed repository; edit this file 'description' to name the repository. | Linux User |
| summaryrefslogtreecommitdiff |