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List:       linux-ext4
Subject:    [Ext2-devel] Linux performance bug: fsync() for files with zero links
From:       Victor Porton <porton () ex-code ! com>
Date:       2006-02-25 0:32:51
Message-ID: E1FCnMh-0000tb-00 () porton ! narod ! ru
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Linux kernel (as of 2.6.15.4) has the following performance bug:

Syncing (fsync() or fdatasync()) files with zero links (deleted files) in not
no-op, as it should be.

See details, a test C program, and the rationale in the URL below:

http://b2e.ex-code.com/index.php/soft/2006/02/24/linux_performance_bug_zero_links_fsync

In the article with the URL above it is also explained how to make much more
efficient /tmp directory when this bug will be fixed.

Somebody please make a patch.

-- 
Victor Porton (porton@ex-code.com) - http://porton.ex-code.com


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