From: John Bradford <john@grabjohn.com>
To: schlicht@uni-mannheim.de (Thomas Schlichter)
Cc: akpm@digeo.com (Andrew Morton), linux-kernel@vger.kernel.org
Subject: Re: [RFC] first try for swap prefetch
Date: Fri, 11 Apr 2003 13:21:44 +0100 (BST) [thread overview]
Message-ID: <200304111221.h3BCLiHv000820@81-2-122-30.bradfords.org.uk> (raw)
In-Reply-To: <200304111352.05774.schlicht@uni-mannheim.de> from "Thomas Schlichter" at Apr 11, 2003 01:51:55 PM
> > > as mentioned a few days ago I was going to try to implement a swap
> > > prefetch to better utilize the free memory. Now here is my first try.
> >
> > That's surprisingly cute. Does it actually do anything noticeable?
>
> Well, it fills free pagecache memory with swapped pages... ;-)
Actually, it could potentially do something very useful - if you are
using a laptop, or other machine where disks are spun down to save
power, you might be swapping in data while the disk still happens to
be spinning, rather than letting it spin down, then having to spin it
up again - in that instance you are definitely gaining something,
(more battery life).
John.
next prev parent reply other threads:[~2003-04-11 12:07 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-10 17:47 [RFC] first try for swap prefetch Thomas Schlichter
2003-04-10 23:18 ` Andrew Morton
2003-04-11 11:51 ` Thomas Schlichter
2003-04-11 12:13 ` William Lee Irwin III
2003-04-11 12:21 ` John Bradford [this message]
2003-04-11 12:22 ` Zwane Mwaikambo
2003-04-11 13:29 ` John Bradford
2003-04-11 21:39 ` Andrew Morton
2003-04-12 5:05 ` Thomas Schlichter
2003-04-12 5:37 ` Andrew Morton
2003-04-17 16:02 ` [RFC] second try for swap prefetch (does Oops!) Thomas Schlichter
2003-04-11 16:57 [RFC] first try for swap prefetch Chuck Ebbert
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