From owner-freebsd-stable@FreeBSD.ORG Fri Sep 19 12:56:35 2003 Return-Path: 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 8EAAF16A4B3; Fri, 19 Sep 2003 12:56:35 -0700 (PDT) Received: from mail.broadpark.no (mail.broadpark.no [217.13.4.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id 70A8443F3F; Fri, 19 Sep 2003 12:56:33 -0700 (PDT) (envelope-from des@des.no) Received: from smtp.des.no (37.80-203-228.nextgentel.com [80.203.228.37]) by mail.broadpark.no (Postfix) with ESMTP id A69CB78EB0; Fri, 19 Sep 2003 21:55:50 +0200 (MEST) Received: by smtp.des.no (Pony Express, from userid 666) id 682F79A07D; Fri, 19 Sep 2003 21:55:50 +0200 (CEST) Received: from dwp.des.no (dwp.des.no [10.0.0.4]) by smtp.des.no (Pony Express) with ESMTP id 07F779A06A; Fri, 19 Sep 2003 21:55:46 +0200 (CEST) Received: by dwp.des.no (Postfix, from userid 2602) id D94EBB84A; Fri, 19 Sep 2003 21:55:45 +0200 (CEST) To: Chris Pressey References: <20030918152942.5c7163df.trhodes@FreeBSD.org> <3F6A2A72.90405@tenebras.com> <20030919110638.5c282e06.cpressey@catseye.mine.nu> <20030919121612.4a31c1ae.cpressey@catseye.mine.nu> From: des@des.no (Dag-Erling =?iso-8859-1?q?Sm=F8rgrav?=) Date: Fri, 19 Sep 2003 21:55:45 +0200 In-Reply-To: <20030919121612.4a31c1ae.cpressey@catseye.mine.nu> (Chris Pressey's message of "Fri, 19 Sep 2003 12:16:12 -0700") Message-ID: User-Agent: Gnus/5.090024 (Oort Gnus v0.24) Emacs/21.3 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, hits=-3.0 required=8.0 tests=EMAIL_ATTRIBUTION,IN_REP_TO,QUOTED_EMAIL_TEXT,REFERENCES, REPLY_WITH_QUOTES,USER_AGENT_GNUS_UA version=2.55 X-Spam-Level: X-Spam-Checker-Version: SpamAssassin 2.55 (1.174.2.19-2003-05-19-exp) cc: trhodes@FreeBSD.org cc: FreeBSD-stable@FreeBSD.org cc: FreeBSD-qa@FreeBSD.org Subject: Re: Mail selection options in sysinstall(8). X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Sep 2003 19:56:35 -0000 Chris Pressey writes: > des@des.no (Dag-Erling Sm=F8rgrav) wrote: > > Performance under high load will be abysmal if you leave out the > > bigqueue patches, and you may also want to increase the hash size. > > [...] > That would be a nice touch. I still don't understand, though, is it a > correctness issue, or a performance issue? My server is not under high > load, and qmail sure seems to work correctly. These are just performance issues (but serious ones; under high loads, qmail performance can sometimes get so bad that it enters a death spiral where everything it does just makes the problem worse; I've experienced this in the field). There may be some correctness issues as well; DJB is not known for letting the harsh realities of life get in the way of pedantic RFC compliance. There have been problems in the past with qmail being unable to cope with non-compliant DNS servers. DES --=20 Dag-Erling Sm=F8rgrav - des@des.no