zlib-ng VS LZHAM

zlib-ng

• Show HN: Pzip- blazing fast concurrent zip archiver and extractor
  2 projects | news.ycombinator.com | 24 Sep 2023

  Please note that allowing for 2% bigger resulting file could mean huge speedup in these circumstances even with the same compression routines, seeing these benchmarks of zlib and zlib-ng for different compression levels:

  https://github.com/zlib-ng/zlib-ng/discussions/871

  IMO the fair comparison of the real speed improvement brought by a new program is only between the almost identical resulting compressed sizes.

• Intel QuickAssist Technology Zstandard Plugin for Zstandard
  10 projects | news.ycombinator.com | 16 Aug 2023
• Introducing zune-inflate: The fastest Rust implementation of gzip/Zlib/DEFLATE
  2 projects | /r/rust | 11 Feb 2023

  It is much faster than miniz_oxide and all other safe-Rust implementations, and consistently beats even Zlib. The performance is roughly on par with zlib-ng - sometimes faster, sometimes slower. It is not (yet) as fast as the original libdeflate in C.

• Zlib Critical Vulnerability
  4 projects | news.ycombinator.com | 14 Oct 2022

  Zlib-ng doesn't contain the same code, but it appears that their equivalent inflate() when used with their inflateGetHeader() implementation was affected by a similar problem: https://github.com/zlib-ng/zlib-ng/pull/1328

  Also similarly, most client code will be unaffected because `state->head` will be NULL, because they (most client code) won't have used inflateGetHeader() at all.

• Git’s database internals II: commit history queries
  3 projects | news.ycombinator.com | 30 Aug 2022

  I wonder if zlib-ng would make a difference, since it has a lot of optimizations for modern hardware.

  https://github.com/zlib-ng/zlib-ng/discussions/871

• Computing Adler32 Checksums at 41 GB/s
  5 projects | news.ycombinator.com | 7 Aug 2022

  zlib-ng also has adler32 implementations optimized for various architectures: https://github.com/zlib-ng/zlib-ng

  Might be interesting to benchmark their implementation too to see how it compares.

  2 projects | news.ycombinator.com | 4 Aug 2022
• Convenient CPU feature detection and dispatch in the Magnum Engine
  9 projects | /r/cpp | 2 Aug 2022

  zlib-ng: https://github.com/zlib-ng/zlib-ng/blob/develop/functable.c

• games-emulation/dolphin-9999 is failing to build because devs switched to minizip-ng and zlib uses minizip. I'm not sure how to get it to build now, details in post.
  2 projects | /r/Gentoo | 20 Jun 2022

  (2) There are many packages that rely upon zlib and minizip and switching those underlying dependencies is easier said than done. We can't drop zlib completely and switch: "The idea of zlib-ng is not to replace zlib, but to co-exist as a drop-in replacement with a lower threshold for code change." - https://github.com/zlib-ng/zlib-ng

• Re: Zlib memory corruption on deflate (i.e. compress)
  4 projects | news.ycombinator.com | 28 Mar 2022

  There are already active zlib forks (e.g. https://github.com/zlib-ng/zlib-ng), the problem is with having people move to them. It takes a lot of effort to move mindshare from the original version to a fork, there's some historical examples of it happening, but not a ton.

LZHAM

We haven't tracked posts mentioning LZHAM yet.
Tracking mentions began in Dec 2020.