Re: 2-4-21-rc3-benh0 - hfsplus
On Thu, Jun 12 2003, Soeren Sonnenburg wrote:
> On Thu, 2003-06-12 at 09:09, Jens Axboe wrote:
> > On Thu, Jun 12 2003, Soeren Sonnenburg wrote:
> > > On Thu, 2003-06-12 at 07:52, Jens Axboe wrote:
> > > > On Wed, Jun 11 2003, Soeren Sonnenburg wrote:
> > > > > [...]
> > > > > Any reasonable values ?
> > > > >
> > > > > For the moment I would allow for hdsleeping for 1hr ... so I am doing
> > > > > hdparm -S60 /dev/hda (-S0 respectively) also in the laptop-mode.sh
> > > > > script as it makes no sense for me to have the hd beeing powered down
> > > > > elsewhen...
> > > >
> > > > I use -S6 and -S0 on the kernels that don't have the AAM patch. But I
> > > > almost always use the laptop-mode patch in conjunction with the AAM
> > > > patch, so I don't have a lot of mileage on it alone.
> > >
> > > Sorry, but what is AAM ?
> >
> > Automatic acousting management, essentially meant to control the
> > acoustic level (and thus power leve) of the drive while being used. It
> > will keep the drive in three states: spun down, quiet (low power
> > consumption), and fast.
>
> >From that it is not really clear what that patch does... I mean will
> that patch try to keep the drive in the lowest powermode possible all
> the time ?
Yes, that's about it.
> Hmmhh exactly that would be needed for cpufreq... atm it is either fast
> or slow but not automagically detected on cpu load...
cpudyn has something like that, but it doesn't work very well. It
doesn't take io wait time into account either. But I fully agree with
you, cpu throttling should be based on the same criteria.
> > It was posted on lkml some time back, I can
> > repost an updated version if there's any interest.
>
> At least I am interested...
>
> Would be nice if it applies cleanly to the rsync version of
> benh-devel...
It's based off benh-devel, so yes. I'll post a patch later today, need
to be near the powerbook first.
--
Jens Axboe
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