Re: [Bug #11308] tbench regression on each kernel release from 2.6.22 -> 2.6.28

David Miller
2008-11-17T20:16:41Z

From: Linus Torvalds <torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
Date: Mon, 17 Nov 2008 11:55:35 -0800 (PST)

> So try to figure out why his (better) profile doesn't match your
> (inferior) one, instead of asking him to do stupid things. It's some
> difference in architectures, likely: maybe the sparc timekeeping is crap,
> maybe it's a cache issue and sparc caches are crap, maybe it's something
> where Niagara (is it niagara) has some oddness that shows up because it
> has that odd four-threads+four-cores or whatever.

It's on my workstation which is a much simpler 2 processor
UltraSPARC-IIIi (1.5Ghz) system.

And yes I will investigate, it's all I've been doing in my
spare time these past few weeks.