Some also might do this when the battery power gets low.
Vladimir Dergachev <vdergach@sas.upenn.edu> writes:
> Actually, new notebooks with "Copperville" cpus are supposed to have this
> kind of behaviour, perhaps someone (me ?) should write a patch to allow
> forcing of linux kernel to recompute bogomips.
>
> Vladimir Dergachev
>
> On Fri, 29 Oct 1999, Ramon Nieto wrote:
>
> > Hi!
> >
> > the problem is a bad configuration of the BIOS, you
> > have to configure your BIOS so your cpu can have full
> > power when pluged in.
> >
> > The toshiba laptops have some parameters for the cpu
> > and the screen, so you can save some power when
> > running on batteries.
> >
> > You can access the BIOS by pressing the esc key when
> > booting or use the rescue/maintenance disk provided
> > bye toshiba
> >
> > --- Pavel Machek <pavel@suse.cz> wrote:
> > > Hi!
> > >
> > > So I've now confirmed that my toshiba can speed-up
> > > its cpu under some
> > > circumstances. When it is powered up while batteries
> > > are low (<20%
> > > will work), it will start with cpu at 150MHz, and
> > > bogomips are
> > > computed accordingly.
> > >
> > > If I plug it into AC power, it will speed up to
> > > 300MHz, but bogomips
> > > still have "slow" value. Therefore all udelays are
> > > wrong by factor of
> > > two -- udelay(50) will only wait approx. 25usec.
> > > That seems pretty
> > > dangerous to me. Maybe we need some other source of
> > > short loops?
> > >
> > > Pavel
> > > --
> > > I'm really pavel@ucw.cz. Look at
> > > http://195.113.31.123/~pavel. Pavel
> > > Hi! I'm a .signature virus! Copy me into your
> > > ~/.signature, please!
> > >
> >
> >
> > =====
> >
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>
-- John Goerzen Linux, Unix consulting & programming jgoerzen@complete.org | Developer, Debian GNU/Linux (Free powerful OS upgrade) www.debian.org | ----------------------------------------------------------------------------+ Remote from Kansas- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/