From: studdugie <studdugie@gmail.com>
To: reiserfs-mailing-list <reiserfs-list@namesys.com>
Subject: 15M files
Date: Fri, 19 Aug 2005 17:49:40 -0400 [thread overview]
Message-ID: <5a59ce53050819144970d07ab0@mail.gmail.com> (raw)
Hello. I'm looking to replace a couple Berkeley DB data stores w/
regular file system directories backed by reiserfs (3.6). The reason
is Berkeley DB is slow especially for data w/ little or no locality of
reference. I'm posting to this list because I would like to get some
opinions on if reiserfs is suitable for the job. Currently there are
15,079,597 records in 1 of the database. If I moved to a directory
based db it would result in 15,079,597 discreet files ranging in sizes
from 1 byte to 1kb. I was reading the FAQ on the namesys site and it
mentioned that the r5 hash supports 1,200,000 files w/o collision.
Since 15M is 12.5x greater I'm expecting massive amounts of
collisions. So the question becomes how bad should I expect it to be?
Should I assume the file system can handle it or slow to a crawl? I
would really appreciate some feedback from the experts before I go
ripping out the Berkeley DB code.
Thanx.
next reply other threads:[~2005-08-19 21:49 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-19 21:49 studdugie [this message]
2005-08-19 22:08 ` 15M files PFC
2005-08-19 22:09 ` David Masover
2005-08-19 22:44 ` studdugie
2005-08-20 9:58 ` Christian Iversen
2005-08-20 10:23 ` PFC
2005-08-20 12:51 ` Christian Iversen
2005-08-19 22:30 ` Hans Reiser
2005-08-19 22:39 ` studdugie
2005-08-19 22:45 ` David Masover
2005-08-19 22:50 ` Hans Reiser
2005-08-21 19:16 ` Lexington Luthor
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