Re: faster boots?

Mark Mielke
2002-04-08T17:34:07Z

Not really thinking about how hard it would be to implement, I suggest
that the appropriate place for this to be, would be a mount option.

Just as 'noatime', or 'sync', perhaps a 'delaywrite' option would be a
good choice. An advantage of this approach, is that I could make /tmp
be 'delaywrite+journal' in an effort to improve the efficiency of
/tmp, as I could care less what I lost in /tmp between reboots under
extreme situations.

mark

On Sun, Apr 07, 2002 at 06:14:51PM -0700, Andrew Morton wrote:
> Richard Gooch wrote:
> >
> > But I *want* to write while the drive is spun down. And leave it spun
> > down until the system is RAM starved (or some threshold is reached).
> >
>
> Yes. The desirable behaviour for laptops is to defer writes
> for a very long time, or until the user says "sync".
>
> Mechanisms need to be put in place so that if there are pending
> writes and the disk happens to be spun up for a read, we take
> advantage of that spinup to push out the pending writes at
> the same time.
>
> This behaviour should be all be enabled by a special "laptop mode"
> switch.
>
> There's nothing particularly hard in all this... I'll do a 2.5
> version at some stage.
>
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