From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265099AbUGZJca (ORCPT ); Mon, 26 Jul 2004 05:32:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265101AbUGZJca (ORCPT ); Mon, 26 Jul 2004 05:32:30 -0400 Received: from mail002.syd.optusnet.com.au ([211.29.132.32]:20431 "EHLO mail002.syd.optusnet.com.au") by vger.kernel.org with ESMTP id S265099AbUGZJc2 (ORCPT ); Mon, 26 Jul 2004 05:32:28 -0400 Message-ID: <4104CF8F.2050208@kolivas.org> Date: Mon, 26 Jul 2004 19:31:59 +1000 From: Con Kolivas User-Agent: Mozilla Thunderbird 0.7.1 (X11/20040626) X-Accept-Language: en-us, en MIME-Version: 1.0 To: "R. J. Wysocki" Cc: Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: Autotune swappiness01 References: <200407261052.50178.rjwysocki@sisk.pl> In-Reply-To: <200407261052.50178.rjwysocki@sisk.pl> X-Enigmail-Version: 0.84.1.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigD281C7D7905D1772C78B986A" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigD281C7D7905D1772C78B986A Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit R. J. Wysocki wrote: > On Monday 26 of July 2004 03:09, Con Kolivas wrote: > >>Con Kolivas writes: >> >>>Andrew Morton writes: >>> >>>>Seriously, we've seen placebo effects before... >>> >>>I am in full agreement there... It's easy to see that applications do not >>>swap out overnight; but i'm having difficulty trying to find a way to >>>demonstrate the other part. I guess timing the "linking the kernel with >>>full debug" on a low memory box is measurable. >> >>I should have said - finding a swappiness that ensures not swapping out >>applications with updatedb, then using that same swappiness value to do the >>linking test. > > > Please excuse me, but is that viable at all? IMHO, it's just like trying to > tune a radio including volume with only one knob. I don't say it won't work, > but the probability that it will is rather small, it seems ... Well that's what we want. I cant remember other desktop operating systems setting a root only control between night and day, or between copying ISOs and running applications or... Con --------------enigD281C7D7905D1772C78B986A Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFBBM+PZUg7+tp6mRURAl9CAJ47K73OcrA/O+9dNHX7kdHBlGHWnQCcDsVV q2hTvCXVDMMzNe/5ft6/puA= =YuHD -----END PGP SIGNATURE----- --------------enigD281C7D7905D1772C78B986A--