Messages in this thread | | | Date | Thu, 20 Nov 2008 01:06:06 -0800 (PST) | Subject | Re: [Bug #11308] tbench regression on each kernel release from 2.6.22 -> 2.6.28 | From | David Miller <> |
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From: Nick Piggin <nickpiggin@yahoo.com.au> Date: Tue, 18 Nov 2008 20:44:10 +1100
> On Tuesday 18 November 2008 07:58, David Miller wrote: > > From: Linus Torvalds <torvalds@linux-foundation.org> > > Date: Mon, 17 Nov 2008 12:30:00 -0800 (PST) > > > > > On Mon, 17 Nov 2008, David Miller wrote: > > > > It's on my workstation which is a much simpler 2 processor > > > > UltraSPARC-IIIi (1.5Ghz) system. > > > > > > Ok. It could easily be something like a cache footprint issue. And while > > > I don't know my sparc cpu's very well, I think the Ultrasparc-IIIi is > > > super- scalar but does no out-of-order and speculation, no? > > > > I does only very simple speculation, but you're description is accurate. > > Surely it would do branch prediction, but maybe not indirect branch?
Right.
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