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Date:      Thu, 25 Mar 2004 09:27:05 +0100
From:      =?iso-8859-1?Q?Johan_Lindstr=F6m?= <johan.jl@home.se>
To:        "'jason'" <jason@ec.rr.com>, "'Nikolas Britton'" <freebsd@nbritton.org>
Cc:        freebsd-newbies@freebsd.org
Subject:   SV: CPU Clock Freq
Message-ID:  <20040325083057.1598043D46@mx1.FreeBSD.org>
In-Reply-To: <40627EF1.6060805@ec.rr.com>

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Nikolas, try the snapshot function of VMWare of you don’t want to see the
cool startup messages.

-- Johan 

> -----Ursprungligt meddelande-----
> Från: owner-freebsd-newbies@freebsd.org 
> [mailto:owner-freebsd-newbies@freebsd.org] För jason
> Skickat: den 25 mars 2004 07:41
> Till: Nikolas Britton
> Kopia: freebsd-newbies@freebsd.org
> Ämne: Re: CPU Clock Freq
> 
> Nikolas Britton wrote:
> 
> > Can anyone explain why the clock is off by 17Mhz? This is 
> non critical 
> > btw I was just playing with the diff command an wasn't expecting to 
> > see this, the system is FreeBSD 5.2.1 running as a guest OS 
> in VMWare 
> > (Win2k host).....my guess is its just vmware playing tricks 
> on freebsd...
> >
> > #diff dmesg.today dmesg.yesterday
> > 8c8
> > < CPU: Intel(R) Celeron(R) CPU 1.70GHz (1733.85-MHz 686-class CPU)
> > ---
> > > CPU: Intel(R) Celeron(R) CPU 1.70GHz (1716.78-MHz 686-class CPU)
> > 79c79
> > < Timecounter "TSC" frequency 1733846104 Hz quality 800
> > ---
> > > Timecounter "TSC" frequency 1716778304 Hz quality 800
> > 85a86,91
> > > WARNING: / was not properly dismounted
> > > WARNING: /tmp was not properly dismounted
> > > /tmp: mount pending error: blocks 4 files 3
> > > WARNING: /usr was not properly dismounted
> > > WARNING: /var was not properly dismounted
> > > cd9660: RockRidge Extension
> >
> > _______________________________________________
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> > http://lists.freebsd.org/mailman/listinfo/freebsd-newbies
> > To unsubscribe, send any mail to 
> > "freebsd-newbies-unsubscribe@freebsd.org"
> >
> If no else will take this one, because of percent error.  The clock 
> generator make a reference clock much lower that you cpu.  
> The cpu uses 
> multipliers of buses that are multiplies of this reference clock.  If 
> the quartz crystal is off by 1%, then multiply by 10, 100, or 
> 10,000 you 
> can get 17 or more mhz off.  Also the temp of the crystal 
> plays a role 
> in the frequency at which it vibrates.  So a cold bootup vs a warm 
> reboot will cause variance.  I am going from memory so this 
> might not be 
> perfect info.  Opps, I did not see the vmware part.  Well this info 
> should still apply.  With a good motherboard monitor program 
> you should 
> see the cpu fluxuation a little too.  By the way are you  
> shutting down 
> freebsd properly?
> 
> Jason
> _______________________________________________
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> "freebsd-newbies-unsubscribe@freebsd.org"
> 
> 



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