Re: Slow booting

From: David Lang (dlang@diginsite.com)
Date: Thu Feb 17 2000 - 14:51:50 EST


On Thu, 17 Feb 2000, Pauline Middelink wrote:

> Date: Thu, 17 Feb 2000 08:43:28 +0100
> From: Pauline Middelink <middelink@polyware.nl>
> To: David Lang <dlang@diginsite.com>
> Cc: Linux Kernel <linux-kernel@vger.rutgers.edu>
> Subject: Re: Slow booting
>
> On Wed, 16 Feb 16 2000 around 14:27:52 -0800, David Lang wrote:
> > Update:
> > adding the compact option does solve the problem
> >
> > I guess the older machines floppy controllers did some caching on the
> > controller that is not done on some of the new machines and therefor
> > when the code makes all the seperate requests the older controllers are
> > able to deliver the data while the newer controllers have to do another
> > seek to get the data.
>
> Eh, controllers don't cache data, they don't have the memory for
> it, they are just stupid in-between-things which translate
> signal levels (at about)
>

Just trying to get some reason why a new, fast machine reads 1 sector/rev
while an olser, slower machine can read 1 track/rev

> > one interesting sidenote.
> > without using the compact option lilo shows "reading kernel
> > image........" with several dots appearing as time goes on and data is
> > read, with the compact option it only shows a single dot and that only
> > when it has read the entire kernel image.
>
> Well, it seems than that a dot is printed between floppy reads and
> the compact options made it one big read, hence the one dot.
>
> I must say I find that strange, because you can only get atmost
> 9 sectors or you will run of the side of the floppy! :)
> So I would expect atleast some 33 dots, each for the 350/9
> tracks the kernel occupies.
>

That is what normally happens without the compact option

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