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From: sow@eru.mt.luth.se (Sven-Ove Westberg)
Newsgroups: news.software.b,news.software.nntp
Subject: Re: Reading news: NNTP v.s. NFS for access to the database
Message-ID: <1167@luth.luth.se>
Date: 5 Aug 88 16:28:09 GMT
References: <16342@tut.cis.ohio-state.edu> <4246@pasteur.Berkeley.Edu> <19153@tut.cis.ohio-state.edu> <11498@cisunx.UUCP>
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Organization: University of Lulea, Sweden
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In article <11498@cisunx.UUCP> cmf@unix.cis.pittsburgh.edu (Carl M. Fongheiser) writes:
|In article <19153@tut.cis.ohio-state.edu> bob@kazoo.cis.ohio-state.edu (Bob Sutterfield) writes:
|>The biggest delay in rrn is when following a subject thread with ^N,
|>or when building an unread-articles subject list with =.  Kill files
|>seem to take forever, too.  This implies to me that you win with local
|>rn (or with rn reading from an NFS-mounted filesystem) because you
|>needn't ship the whole article across the wire just to peek at the
|>headers.
|
|Rrn *is* pretty stupid about such things.  If you're using one of the newer
|ones, the '=' functionality isn't too bad, because then rrn will use the
|XHDR extension.  ^N and friends could use the same trick, but they don't,
|currently.  Kill files could be speeded up enormously if rrn would use
|HEAD instead of ARTICLE to do the scanning.

This is not the NNTPs fault. I looked at it last spring and it
is not trival to fix since rn stores the "Header information" as
pointers to the diskfile, (sigh).

The = functionality is bad put this in your .rcinit and you will se.

-EXSUBJLINE="\
%(%s                                                  =\
^\\(.................................................\\)?%1) \
%(%t=^\\(........................\\)?%1:%t)"

All the problems is that rn relies a lot of diskfiles and pointers
in diskfiles.

Actually we miss ONE command in the NNTP protocol we can not abort
a transmission of an article so in some situations it will be slower.


Sven-Ove Westberg, CAD, University of Lulea, S-951 87 Lulea, Sweden.
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