From owner-freebsd-stable@FreeBSD.ORG Wed Apr 12 17:42:36 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 80F8416A429 for ; Wed, 12 Apr 2006 17:42:36 +0000 (UTC) (envelope-from kris@obsecurity.org) Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by mx1.FreeBSD.org (Postfix) with ESMTP id C9CDC43D9D for ; Wed, 12 Apr 2006 17:42:03 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: from obsecurity.dyndns.org (elvis.mu.org [192.203.228.196]) by elvis.mu.org (Postfix) with ESMTP id AEB351A3C25; Wed, 12 Apr 2006 10:42:03 -0700 (PDT) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 1845651559; Wed, 12 Apr 2006 13:42:03 -0400 (EDT) Date: Wed, 12 Apr 2006 13:42:02 -0400 From: Kris Kennaway To: Garance A Drosihn Message-ID: <20060412174202.GA23969@xor.obsecurity.org> References: <1144795412.81364.18.camel@localhost> <20060412040326.GA94545@xor.obsecurity.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="EVF5PPMfhYS0aIcm" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.1i Cc: freebsd-stable@freebsd.org, "David E. Cross" , Kris Kennaway Subject: Re: swap performance under 6.1 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Apr 2006 17:42:40 -0000 --EVF5PPMfhYS0aIcm Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Apr 12, 2006 at 01:36:43PM -0400, Garance A Drosihn wrote: > At 12:03 AM -0400 4/12/06, Kris Kennaway wrote: > >On Tue, Apr 11, 2006 at 10:43:32PM +0000, David E. Cross wrote: > >> I saw under http://www.freebsd.org/releases/6.1R/todo.html that swap > >> performance under 6.x is slower then 4.X, and this is listed as "not > >> done". > >> > > > I noticed that 6.1 seemed to be a dog, but 6.0 I thought > > > was better. As a test I installed 6.0 and 6.1 in parallel > > > on my laptop with identical ports trees (and packages) >=20 > Note... >=20 > > > and 6.0 does feel a lot more responisve to swapping; I would > > > be eager to help track this down if someone could give me > > > some pointers. If I have to _guess_ as to a problem it would > > > seem like some of the scheduling priorities changed. > > > >I didn't think this was a 6.1 regression compared to 6.0, > >but 6.x compared to 4.x. It would be good to try and > >quantify any performance differences here - so far it's > >just a bunch of people's subjective opinions (including > >mine) after upgrading from 4.x. >=20 > In Dave's case, the tests are explicitly 6.0-release vs > 6.1-@april-5th. Those are the two installations he has on > his laptop, which he is comparing to each other via dual- > booting. The thing is, he's not sure how to get the numbers > to back up the performance "feel" that he's experiencing. Thanks, I did read his email :-) My point was that the problem was not believed to exist in that situation, so it's even more surprising and needs further investigation to be sure. Kris --EVF5PPMfhYS0aIcm Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (FreeBSD) iD8DBQFEPTvqWry0BWjoQKURAm5mAJ0eQ6w+WKzddLQzkhJAX0jlAnq5MgCfTzpI A9XiaSTsIzIYYXL9wFKqRmk= =tlpc -----END PGP SIGNATURE----- --EVF5PPMfhYS0aIcm--