Re: New Feature Idea: Compress swap file

Rik van Riel (
Tue, 24 Feb 1998 11:26:31 +0100 (MET)

On Mon, 23 Feb 1998, Emil Briggs wrote:

> I'm not sure though how to check how good the correlation is,
> particularly since the drive firmware might be doing some
> sort of geometry translation as well.

Usually it's quite good. Only bad block replacements and
very strange (read: exotic) drive mappings spoil the scheme.

But since bad block remappings are getting rarer and rarer
(the technology keeps improving) and nobody seems to like
exotic mappings, I think it's worth it to cluster I/O.
(Digital Unix does it, and DEC usually researches something
before they put a major effort into it)

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