Threadripper 32 core review

By: Linus Torvalds (torvalds.delete@this.linux-foundation.org), August 14, 2018 9:37 am
Room: Moderated Discussions
juanrga (no.delete@this.juanrga.com) on August 14, 2018 4:44 am wrote:
> Linus Torvalds (torvalds.delete@this.linux-foundation.org) on August 13, 2018 3:48 pm wrote:
> >
> > But the Windows comparison was fairly random, and the Linux benchmarks that Phoronix
> > did run are potentially quite a bit more scalable than the ones that Anandtech did.
>
> Phoronix vs Phoronix
>
> https://www.phoronix.com/scan.php?page=article&item=2990wx-linux-windows

Yeah, some of those make Windows look bad, but I simply don't know what the baseline is. Does Windows look relatively better on a smaller setup?

For example, GraphicsMagic just looks bad on Windows. But maybe that's a general "OpenMP on Windows" issue? I would not generally expect the graphics operations themselves to have much of an OS component..

The 7-Zip behavior on Windows might be because the filesystem accesses bog down under heavy threading, if the benchmark is compressing a lot of small files. I can pretty much guarantee that Linux scales a whole lot better (and starts out being faster even on a single CPU) for any file activity. But at the same time, I'd actually expect 7-zip to just test the compression algorithm itself, and not do a lot of filesystem stuff.

So that's what I meant with the windows comparison being fairly random. I'm surprised how bad Windows looks in some of them, and it might be some odd bad scaling issue, but it might just also be something peculiar to the benchmarks.

Linus
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