linux-kernel - Re: [patch] CFS scheduler, -v8

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Message-ID: <11f674920705111353x39ec43a3taa2d05f706443e0a@mail.gmail.com>
Date:	Fri, 11 May 2007 13:53:55 -0700
From:	"Kevin Bowling" <lkml@...009.com>
To:	"Willy Tarreau" <w@....eu>
Cc:	"Pavel Machek" <pavel@....cz>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Peter Williams" <pwil3058@...pond.net.au>,
	"Esben Nielsen" <nielsen.esben@...glemail.com>,
	"Ingo Molnar" <mingo@...e.hu>,
	"Balbir Singh" <balbir@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Con Kolivas" <kernel@...ivas.org>,
	"Nick Piggin" <npiggin@...e.de>, "Mike Galbraith" <efault@....de>,
	"Arjan van de Ven" <arjan@...radead.org>,
	"Thomas Gleixner" <tglx@...utronix.de>, caglar@...dus.org.tr,
	"Gene Heskett" <gene.heskett@...il.com>, "Mark Lord" <lkml@....ca>,
	"Zach Carter" <linux@...hcarter.com>,
	buddabrod <buddabrod@...il.com>
Subject: Re: [patch] CFS scheduler, -v8

On 5/11/07, Willy Tarreau <w@....eu> wrote:
> On Fri, May 11, 2007 at 07:18:25PM +0000, Pavel Machek wrote:
> > Hi!
> >
> > > > Also notice that current cpus were not designed to work 300 years.
> > > > When we have hw designed for 50 years+, we can start to worry.
>
> On a related note, older technology is less sensible. My old VAX VLC4000
> from 1991 which received a small heatsink in exchange for its noisy fans
> is still doing well in an closed place. I'm more worried for the EPROMs
> which store the boot code. Also, I think that the RS6000 processed at
> half-micron which run the Mars rovers might run for hundreds of years
> at 30 MHz.

Not your typical RS/6000.  http://en.wikipedia.org/wiki/RAD6000

Without a doubt, decently built computers will easily last at least 10
years.  From what I can tell, the issue here was simply OS runtime?
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