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RE: tagging performance issues

From: Dale Worley <dworley_at_pingtel.com>
Date: 2005-05-20 17:15:30 CEST

> From: John Szakmeister [mailto:john@szakmeister.net]
> Does that then counter our claim that tagging is O(1) that we so
> prominently advertise?

Not really, because people understand that everything scales based on the
size of directories. Many Un*x implementations take O(n) time to manipulate
a directory containing n files. Indeed, there have been projects to revise
directory handling to be O(log n) (you can't do better than that).

In this case, I can't imagine a production system (and this clearly is)
depending on a directory containing 10,000 entries. How could you possibly
manage that, unless you have rigid conventions for how the names are
constructed -- in which case, you can break the names into components and
use them for a hierarchy of subdirectories.


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Received on Fri May 20 17:23:09 2005

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