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FromOliver Neukum <>
SubjectRe: faster boots?
DateMon, 8 Apr 2002 08:02:58 +0200
> > and spin-up on any operation that writes to the disk (and block that
> > operation).
>
> Absolutely not! I don't want my writes to spin up the drive.

Even if you sync ?

> > The opposite to that (which I do not like) processes create as many
> > dirty buffers as they want and disk spins up only on sync() or when
> > the system is starving for usable memory.
>
> Maybe you don't like that, but many of us with laptops prefer that
> behaviour. And for many reasons, it is definately the correct
> behaviour.

You are definitely right. I'd even wish for swapping out stuff and doing
a drastic read ahead before spinning down.

> > An aletrnate ides (more drastic) is that fle systems can mount
> > internally read-only when a disk is spinned-down. Means - you cannot
> > spin down when there is a file handle open for writing. Other than
> > this there are advantages.
>
> Undesirable behaviour.

Absolutely. One disk is typical and log files will be open.

	Regards
		Oliver
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