4 ms·
Is this a joke, what kind of usage benchmark is 7zipping large numbers of files?
by r00fus 6y ago
Is this a joke, what kind of usage benchmark is 7zipping large numbers of files?
- AlexandrB 6y agoI think the point is that it won’t be as fast in applications that Apple didn’t anticipate.
- chipotle_coyote 6y agoI believe it is what the poster you are replying to would call "a specific curated use case." (Semi-seriously, I don't know anyone who uses a Unix(-like) system who uses 7zip, although I'm sure they're out there. For the record, I just unzipped a 120M archive on both my 2020 Core i7 MacBook Air and my 2018 (last-gen) iPad Pro and as near as I can tell the iPad was faster actually extracting the files, but had an extra second or so of overhead from the UI.)
- ac29 6y ago> I don't know anyone who uses a Unix(-like) system who uses 7zip 7zip is an implementation of LZMA, like xz. So, different names and file format details, but essentially the same algorithm.
- user5994461 6y agoCorrect. 7zip is a LZMA compressor. The common equivalent command line tool on Linux is xz. Linux distributions have been using xz compression for all packages (replacing gzip). So to the question of how relevant is xz/lzma/7zip performance to day to day task, is it's a lot relevant. The successor will probably be zstd in the coming years. https://www.phoronix.com/scan.php?page=news_item&px=Fedora-31-Zstd-RPM-Change https://www.phoronix.com/scan.php?page=news_item&px=Fedora-3...
- rjsw 6y agoYou can find a 7zip for UNIX here [1]. [1] http://p7zip.sourceforge.net/ http://p7zip.sourceforge.net/
- ardy42 6y ago>>> They already have a mobile chip that is as fast as an active-thermally cooled notebook chip. >> "As fast" on specific curated use cases. Show me an Apple chip that beats any laptop on 7zip. > Is this a joke, what kind of usage benchmark is 7zipping large numbers of files? A benchmark that Apple is unlikely to have implemented specific optimizations for, which therefore is a better test of the general purpose performance of the chip. The situation being claimed here is sort of like if someone cited a DES benchmark to claim that Deep Crack's DES cracking chips (https://en.wikipedia.org/wiki/EFF_DES_cracker https://en.wikipedia.org/wiki/EFF_DES_cracker) were faster than a contemporary 1998 Pentium II.
- r00fus 6y agoA benchmark that probably relies as much on disk access speeds as CPU?
- ardy42 6y ago> A benchmark that probably relies as much on disk access speeds as CPU? If true, that's just a nitpick that doesn't affect the overall point of the GGGP, though.
- user5994461 6y agoNope, 7zip is using LZMA algorithm for compression, which is around a few MB/s on the fastest CPU. It's heavily CPU bound. edit: Just tried compressing a large file, ultra setting on my desktop i5 CPU, it's running at 3 MB/s on 1 core.