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From: wedgingt@udenva.UUCP (Will Edgington/Ejeo)
Newsgroups: net.news.b
Subject: Re: Sorting batches helpful?
Message-ID: <1707@udenva.UUCP>
Date: Mon, 30-Jun-86 17:09:39 EDT
Article-I.D.: udenva.1707
Posted: Mon Jun 30 17:09:39 1986
Date-Received: Tue, 1-Jul-86 06:29:38 EDT
References: <510@mecc.UUCP> <2376@phri.UUCP> <764@cit-vax.Caltech.Edu>
Reply-To: wedgingt@udenva.UUCP (Will Edgington/Ejeo)
Distribution: na
Organization: U of Denver
Lines: 21
Keywords: sort news batch compress

In article <2376@phri.UUCP>, roy@phri.UUCP (Roy Smith) writes:
> [...] I took one day's worth of news and ran it through batch and
> compress, with and without sorting the filenames.  The sorted batches were
> indeed smaller, but only about 5-10% so. [...]

  There's another reason to do so with BSD 4.3 (and presumably Ultrix v1.2):
sorting the filenames will take direct advantage of kernel improvements in
directory searching (instead of always returning to the start of a directory
to search for a file, the kernel now starts where the last search left off
via a cacheing scheme).  Also note that sorting by subject will *NOT* take
full advantage of the new kernel routines.
-- 
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