Date: Mon, 10 Feb 2003 10:05:26 +0100 From: phk@phk.freebsd.dk To: Dag-Erling Smorgrav <des@ofug.org> Cc: arch@freebsd.org Subject: Re: Our lemming-syncer caught in the act. Message-ID: <37082.1044867926@critter.freebsd.dk> In-Reply-To: Your message of "Mon, 10 Feb 2003 02:12:03 %2B0100." <xzpu1fdos64.fsf@flood.ping.uio.no>
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In message <xzpu1fdos64.fsf@flood.ping.uio.no>, Dag-Erling Smorgrav writes: >Poul-Henning Kamp <phk@phk.freebsd.dk> 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
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