[ltp] kernel detecting incorrect processor speed

[Tim Prince]

I'm eagerly eating up info on the T20, newly joined this list.  So far I
have RH6.2 coming up in text mode off the W2K boot menu. I probably didn't
make the best guess on video selection.

These schemes for detecting clock speed or other timing procedures easily
are thrown off by clock speeds which change with power source or thermal
adjustments.  The P III also may not time code sequences exactly due to out
of order processing.  I used to have a Kayak desktop which gave me more
timing fits than the T20 does.  My T20 is varying about a minute a day on
the time of day clock, even though I seldom boot up off line power; reminds
me of how we couldn't keep mainframe file systems synchronized 20 years ago.
----- Original Message -----
From: "Lai Zit Seng" <lzs@pobox.com>
To: <linux-thinkpad@www.bm-soft.com>
Sent: Friday, September 08, 2000 5:06 PM
Subject: Re: [ltp] kernel detecting incorrect processor speed


> On Fri, 8 Sep 2000, dan kelley wrote:
>
> > I've just installed mandrake 7.1 on a new T20 (pIII 700).  install went
> > fine, just needed to replace the X server with a S3 Savage compatible
> > version.  the machine shipped with 1 128 meg chip, i added a 256 meg
chip
> > to that.  oddly, the machine seemed slow, so i checked out
/proc/cpuinfo:
> >
> > cpu MHz : 145.076181
> > bogomips : 311.30
> >
> > i've rebooted the machine several times, and it usually comes up with
these
> > same values.  once or twice, it has come up with 586 MHz.
> >
> > anyone heard of anything like this happening?
>
> Yes, it seems to be happening to my T20 all the time. The number ranges
> from 147MHz, 148MHz, 284MHz, 293MHz, 530MHz, 547MHz etc... All this while
> booting on battery power.
>
> Anyone has any ideas why this is so?
>
> Regards,
>
> .lzs
>
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