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Re: Quota definitions
On Wed, Jul 29, 2009 at 04:18:13AM +0000, David Holland wrote:
> > > Because uids mostly tend to come in contiguous sequences, I'm not
> > > convinced that in practice one will tend to see quota files with lots
> > > of blocks that each hold the info for one user and are otherwise
> > > empty. Except maybe on large installations with lots of uids and lots
> > > of uid turnover, but even then I expect a much bigger problem is that
> > > quota records for removed users probably aren't ever G/C'd.
> > Yes, that's another issue. The uid turnover also leads to a sparse uid
> > map.
> Right. Changing the data structures around won't help much with that
You'll have a more compact format, so you don't have one disk
block allocated to store quotas for one or 2 entries ...
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
NetBSD: 26 ans d'experience feront toujours la difference
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