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XFS: "slow at directory traversal .. after 3 years of use"

To: xfs@xxxxxxxxxxx
Subject: XFS: "slow at directory traversal .. after 3 years of use"
From: Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>
Date: Mon, 6 Oct 2008 16:30:22 -0400 (EDT)
Cc: Lennart Hansen <lahansen@xxxxxxxxx>
In-reply-to: <1c08324d0810061325kdd1453alb9eab9ceb769b1cf@xxxxxxxxxxxxxx>
References: <1c08324d0810061325kdd1453alb9eab9ceb769b1cf@xxxxxxxxxxxxxx>
User-agent: Alpine 1.10 (DEB 962 2008-03-14)
Someone pointed me to the following paper:


Which states:

After nearly 3 years of use, some problems with XFS became noticeable. As the 
number of used inodes in the filesystem grows XFS becomes very slow at 
directory traversal. Although this did not impede web-serving it did have a 
heavy impact on how quickly we could synchronise content with the primary 

Dave / Eric, comments here?  Does ext3 suffer from the same problem?

Have these issues been fixed since 2005?  Would inode64 alleviate some of
these problems?


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