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From: "John S. Dyson" <toor@dyson.iquest.net>
Message-Id: <199710280422.XAA02123@dyson.iquest.net>
Subject: Re: help with fstat?
In-Reply-To: <199710280410.VAA06144@usr08.primenet.com> from Terry Lambert at "Oct 28, 97 04:10:31 am"
To: tlambert@primenet.com (Terry Lambert)
Date: Mon, 27 Oct 1997 23:22:50 -0500 (EST)
Cc: tlambert@primenet.com, angio@angio.net, perlsta@cs.sunyit.edu,
        hackers@FreeBSD.ORG
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Terry Lambert said:
> > > There used to be a MAP_SEQUENTIAL flag to get it to discard buffers
> > > after they had been accesed, instead of forcing more pages off the
> > > LRU, but BSD doesn't support this.  8-(.
> > > 
> > > 
> > Try madvise(2).  It has a MADV_SEQUENTIAL.
> 
> Is this supposed to cause it to discard page A after faulting in page B
> on the assumption A will not be rereferenced?
> 
> I didn't think that it did this in -current...
> 
It doesn't 'discard', but should either deactivate or cache the page.

-- 
John
dyson@freebsd.org
jdyson@nc.com