linux-ext4 - Re: Updated fsx.c program

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Message-id: <20090929213859.GB13825@webber.adilger.int>
Date:	Tue, 29 Sep 2009 15:38:59 -0600
From:	Andreas Dilger <adilger@....com>
To:	linux-ext4@...r.kernel.org, Eric Sandeen <esandeen@...hat.com>
Cc:	Subrata Modak <subrata@...ux.vnet.ibm.com>,
	Dave Jones <davej@...hat.com>, linux-fsdevel@...r.kernel.org
Subject: Re: Updated fsx.c program

I've done some work to merge some of the existing fsx.c mods into a
single version.  Over & above the version that is in the LTP, I've
included AKPM's O_DIRECT fixes (with a twist), the BSD mmap page and
segfault handling, and per-write fsync.

The twist for the O_DIRECT feature is that it will randomly open file
descriptors with O_DIRECT, and if you use the Lustre-inspired multi-fd
support (by specifying multiple pathnames for the output file) fsx will
be testing buffered and O_DIRECT and mmap IO on the same file.

Signed-off-by: Andreas Dilger <adilger@....com>

Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.

View attachment "fsx.c" of type "text/plain" (36536 bytes)