From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Torvalds Subject: Re: [Bug #11308] tbench regression on each kernel release from 2.6.22 -> 2.6.28 Date: Mon, 17 Nov 2008 10:33:19 -0800 (PST) Message-ID: References: <20081117090648.GG28786@elte.hu> <20081117.011403.06989342.davem@davemloft.net> <20081117110119.GL28786@elte.hu> <4921539B.2000002@cosmosbay.com> <20081117161135.GE12081@elte.hu> <49219D36.5020801@cosmosbay.com> <20081117170844.GJ12081@elte.hu> <20081117172549.GA27974@elte.hu> <4921AAD6.3010603@cosmosbay.com> <20081117182320.GA26844@elte.hu> Mime-Version: 1.0 Return-path: In-Reply-To: <20081117182320.GA26844-X9Un+BFzKDI@public.gmane.org> Sender: kernel-testers-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: TEXT/PLAIN; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Ingo Molnar Cc: Eric Dumazet , David Miller , rjw-KKrjLPT3xs0@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kernel-testers-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, cl-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, efault-Mmb7MZpHnFY@public.gmane.org, a.p.zijlstra-/NLkJaSkS4VmR6Xm/wNWPw@public.gmane.org, Stephen Hemminger On Mon, 17 Nov 2008, Ingo Molnar wrote: > > hm, i'm not sure whether i can post benchmarks from the Nehalem box - > but i can confirm it in general terms that it's rather nice ;-) Intel released the NDA from various web sites a week or two ago, and Intel is now selling it in the US (I think today was in fact the official launch), so I think benchmarks are safe - you can buy the dang things on the street. I don't know what availability is, of course. But I doubt that Intel would mind Nehalem benchmarks even if it were a paper launch - at least from my personal experience, I've not seen any bad behavior (and plenty of good). > This was run on another testbox (4x4 Barcelona) that rocks similarly > well in terms of memory subsystem latencies: which seems to be > tbench's main current critical path. Ahh, ok. Linus