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From: Karl Kleinpaste <karl@jprc.com>
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Subject: Re: Gnus as slow as molasses
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Lars Magne Ingebrigtsen <larsi@gnus.org> writes:
>> If the group contains 17000 articles,
>> selecting the first article will be Slow.

Eze Ogwuma <typhoon@dircon.co.uk> writes:
> Could you please tell me why this is the case.

At the very least, kernel directory search time will be horrendous,
especially given the assumption that newer files will be listed near
the end of the directory.

How large is the directory itself?  That is, the byte-size, not the
file count.  I'd guess it's in the vicinity of 250Kbytes, maybe more.