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bug#67022: Re: bug#67022: Gzip decompression can be 60% faster using zli
From: |
wrotycz |
Subject: |
bug#67022: Re: bug#67022: Gzip decompression can be 60% faster using zlib's CRC32 |
Date: |
Thu, 14 Mar 2024 19:56:41 +0100 |
User-agent: |
GWP-Draft |
> Mr. Wrotycz, Mr Adler, let's spare the formalities. That's a
nickname. > > On Mar 13, 2024, at 6:14 PM, wrotycz < wrotycz@#$%...
I know it's a mail list but I would appreciate to not broadcast my email
to every (spam)bot on the web. Archive is publicly available and easily
searchable by boys, so next time don't quote someone's email in the
message. > I’m not sure what you mean by “bloated” I mean 600[kB] of
crc32.h. I know, there is a lot of conditionals (compilation) that make it
much smaller in resulting object, but the sheer size of it makes me nausea. I
guess, there is only one person that can understand flow of conditional
directives in it. And crc32_z() is even more complicated in this regard. To
illustrate the difference between code of zlib and, what I consider
comprehensible, compare code of xxhash and xxhash-clean. I hope you
understand. > for CRC-32 does not use slice-by-8. It uses braids I
noticed the lookup table is 'upside down' but didn't know that
thing. And, again, due to level of complexity in the code, I didn't check
it. I have this quirk that I want to understand stuff I use, here I
couldn't so I didn't follow. I will check that braids thing when I
find something about it. Regards
- bug#67022: Gzip decompression can be 60% faster using zlib's CRC32, wrotycz, 2024/03/13
- bug#67022: Gzip decompression can be 60% faster using zlib's CRC32, Adler, Mark, 2024/03/14
- bug#67022: Re: bug#67022: Gzip decompression can be 60% faster using zlib's CRC32,
wrotycz <=
- bug#67022: Gzip decompression can be 60% faster using zlib's CRC32, Adler, Mark, 2024/03/14
- bug#67022: Gzip decompression can be 60% faster using zlib's CRC32, wrotycz, 2024/03/15
- bug#67022: Gzip decompression can be 60% faster using zlib's CRC32, Adler, Mark, 2024/03/14
- bug#67022: Gzip decompression can be 60% faster using zlib's CRC32, wrotycz, 2024/03/15
- bug#67022: Gzip decompression can be 60% faster using zlib's CRC32, wrotycz, 2024/03/16
- bug#69806: Exposure of email addresses on this list, Adler, Mark, 2024/03/14
bug#67022: Gzip decompression can be 60% faster using zlib's CRC32, wrotycz, 2024/03/15