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RAR + UnRAR (Users)

posted by Rugxulo Homepage, Usono, 03.11.2018, 03:19

> FYI: RARLab still has
> https://www.rarlab.com/rar/unrarsrc-3.9.10.tar.gz and
> https://www.rarlab.com/rar/rarx393.exe.
To me he seemed to say that all old code had security vulnerabilities and would be thrown away eventually. Besides, these old versions won't unpack newer archives, only legacy ones.

> > I used DJGPP 2.04 /beta/ and G++ 4.8.1 with -O2 (.exe) and -Os (sfx),
> > respectively. And CWSDPMI r7 is bound to both. I'm not sure it'd be
> worth
> > using older versions just for smaller size when it may be more
> beneficial
> > to be modern (faster). I used -march=pentium -mtune=generic .
>
> Did you ever test if using other GCC versions or -march/-mtune settings
> makes any difference in performance while unpacking?
> ("unrarsrc-3.9.10.tar.gz" can be build with GCC up to the latest DJGPP
> version 8.20.)
No, speed wasn't a huge factor for me. I don't have lots of RAR archives to test anyways, nor do I have a lot of diverse cpus either. In theory, I'd be curious about 486 (alignment sensitive) or Atom (in-order?) builds. IIRC, Atom was first supported in GCC 4.5.0. Not sure what else would be interesting, Pentium 4?

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