7zip
Caute.

V minulosti sa alpha dala, ale bez problemov, nemusi byt.

[10.02.2020] / [Software] : 7-Zip 20.00 alpha - komprimačný program s výborným kompresným pomerom, podpora bežných archívov ako 7zip, RAR, ACE, nově i RAR5 ... pre dekomprimáciu (screenshot, změny, WinAll, Open-source)

Changelog:
Notes about changes in 7-Zip 20.01

Te size of solid block for 7z/LZMA2 archives was increased, so 7-Zip can use more threads and chunks to compress solid block. It can improve the compression speed for multi-core processors like Threadripper/Epyc and Xeon. Also it can slightly improve multi-core LZMA2 decompression speed.

Some important parts of PPMd code were rewritten for faster compression and decompression.
And that new PPMd code works faster for data that is not too compressible, like exe files or already compressed data.

Also PPMD in previous 7-Zip could be slow in some Intel CPUs for decompression, if CVE-2018-3639 Speculative Store Bypass (SSB) mitigation was enabled in system. And new PPMd code must work faster for such cases too.

Another change of 7-Zip 20.01 is speed optimization in Delta filter code, that is about two times faster than in previous version.
mcmiazga, (08.08.2020 10:19:10) Odpovědět