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Re: Subdirectories for db/revs/* on fsfs backend

From: John Peacock <jpeacock_at_rowman.com>
Date: 2004-07-20 16:39:37 CEST

Greg Hudson wrote:

> On Tue, 2004-07-20 at 04:55, Alan Knowles wrote:
>>I've got 37k revisions on one server here, performance of subversion is
>>perfectly ok, however, I was doing backups to dvd over nfs last weekend.
>>With that many files in the folder, k3b and ls both hang the machine for
>>a considerable time, while listing or adding the files.

I don't know about k3b, but 'ls' will, by default, attempt to sort the
files before returning them. On large directories, 'ls -U' or 'ls -f'
are preferrable. There may be an option to k3b that similarly deals
with the files in directory order (worse yet, k3b may be attempting to
find the date order).

This is not to say that the basic fsfs design doesn't need changing for
that reason. In particular, I've found that NTFS behaves *very* badly
with over a few thousand files in a single directory (don't even think
about using a GUI)...


John Peacock
Director of Information Research and Technology
Rowman & Littlefield Publishing Group
4501 Forbes Boulevard
Suite H
Lanham, MD  20706
301-459-3366 x.5010
fax 301-429-5748
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Received on Tue Jul 20 16:39:39 2004

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