From owner-freebsd-arch Mon Feb 10 1: 6:50 2003 Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 886E237B401 for ; Mon, 10 Feb 2003 01:06:49 -0800 (PST) Received: from critter.freebsd.dk (critter.freebsd.dk [212.242.86.163]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5A05D43FEA for ; Mon, 10 Feb 2003 01:05:28 -0800 (PST) (envelope-from phk@phk.freebsd.dk) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.12.6/8.12.6) with ESMTP id h1A95QqV037083; Mon, 10 Feb 2003 10:05:27 +0100 (CET) (envelope-from phk@phk.freebsd.dk) To: Dag-Erling Smorgrav Cc: arch@freebsd.org Subject: Re: Our lemming-syncer caught in the act. From: phk@phk.freebsd.dk In-Reply-To: Your message of "Mon, 10 Feb 2003 02:12:03 +0100." Date: Mon, 10 Feb 2003 10:05:26 +0100 Message-ID: <37082.1044867926@critter.freebsd.dk> Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In message , Dag-Erling Smorgrav writes: >Poul-Henning Kamp writes: >> An image is worth a thousand words, but in this case it only >> says three words: "Man, that sucks!". > >Yes, it's really amazing that you draw conclusions about the quality >of our syncer (and expect us to instantly agree with them) based on >such a shitty graph. I see no information at all about how it was >created, what the units are for the axes (and the green curve is most >likely in a different unit than the red bars), your bars are averages >which means there's no information about how many requests were >satisfied at each point in time, you don't say anything about what you >call a request and how you determine when it has been satisfied, etc., >etc. You must obviously have overlooked the majority of my email: > Green is the number of unfinished requests. > > Most of the red "impulse" represents one request finishing after > as many milliseconds as it is tall. The remainder of the impulses > cover more than one request, the height is then the average of the > time it has taken to service them. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message