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From: "Björn JACKE" <bj@sernet.de>
To: xfs@oss.sgi.com
Subject: library to speed up posix_fallocate for XFS
Date: Sat, 9 Jan 2010 23:02:51 +0100	[thread overview]
Message-ID: <E1NTjOZ-001wx2-Iz@intern.SerNet.DE> (raw)


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Hi,

some of you might be interested in this little LD_PRELOAD'able library, which
makes posix_fallocate() use XFS' unwritten extents via xfsctl:

http://repo.or.cz/w/libposix_fallocate_xfs.git

You won't need this if you have Kernel 2.6.25 and glibc 2.10 - in that case
kernel, glibc and filesystem work well together. If you don't have such an
up-to-date system libposix_fallocate_xfs can help you to improve this call. It
works exactly like posix_fallocate() should do but it maps that funktion to
much more efficient code adapted for XFS.

Cheers
Björn

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                 reply	other threads:[~2010-01-09 22:02 UTC|newest]

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