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Path: utzoo!linus!decvax!seismo!rick
From: rick@seismo.CSS.GOV (Rick Adams)
Newsgroups: net.news
Subject: Re: Quantitative Gloom and Doom
Message-ID: <383@seismo.CSS.GOV>
Date: Wed, 9-Oct-85 18:03:08 EDT
Article-I.D.: seismo.383
Posted: Wed Oct  9 18:03:08 1985
Date-Received: Fri, 11-Oct-85 08:02:22 EDT
References: <10277@ucbvax.ARPA> <602@oliveb.UUCP> <5993@utzoo.UUCP> <128@codas.UUCP>
Organization: Center for Seismic Studies, Arlington, VA
Lines: 15
Summary: du IS wrong sometimes

Why doesn't anyone look at the code for du before spouting off on what
it does or doesn't do?

On 4.[12]bsd, du keeps track of the first 1000 inodes it finds with
multiple links.  If it finds more than that, it will not notice that
they are duplicates and will count them as if they were distinct files.

My system has over 7000 articles on line right now. About 1100 of
them are multiple links. So 100 articles are being miscounted and du is wrong
in this case.

If you have 15000 articles (about 1 months worth), then du will probably
miss at least 1000 of them and be WAY off.

---rick