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From: Terry Lambert <tlambert@primenet.com>
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Subject: Re: help with fstat?
To: toor@dyson.iquest.net (John S. Dyson)
Date: Tue, 28 Oct 1997 21:51:31 +0000 (GMT)
Cc: tlambert@primenet.com, dyson@FreeBSD.ORG, angio@angio.net,
        perlsta@cs.sunyit.edu, hackers@FreeBSD.ORG
In-Reply-To: <199710281829.NAA16590@dyson.iquest.net> from "John S. Dyson" at Oct 28, 97 01:29:17 pm
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> > > It doesn't 'discard', but should either deactivate or cache the page.
>
> Pages are usually pretty darned unused by the time they are on the
> inactive or cache queues.

But will this page be reused before another page that was less recently
accessed?

In other words, when push comes to shove, is a deactivated/cached
page reused before forcing a clean page backed by a file
without MADV_SEQUENTIAL?

Ie: what effect does MADV_SEQUENTIAL have on cache thrashing?


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.