lkml.org 
[lkml]   [2010]   [Jun]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 0/3 v5][RFC] ext3/4: enhance fsync performance when using CFQ
On Tue, Jun 22, 2010 at 05:34:59PM -0400, Jeff Moyer wrote:
> Running iozone with the fsync flag, or fs_mark, the performance of CFQ is
> far worse than that of deadline for enterprise class storage when dealing
> with file sizes of 8MB or less. I used the following command line as a
> representative test case:
>
> fs_mark -S 1 -D 10000 -N 100000 -d /mnt/test/fs_mark -s 65536 -t 1 -w 4096 -F

I'd be interested in how ocfs2 does, because we use jbd2 too.

Joel

--

Life's Little Instruction Book #139

"Never deprive someone of hope; it might be all they have."

Joel Becker
Principal Software Developer
Oracle
E-mail: joel.becker@oracle.com
Phone: (650) 506-8127


\
 
 \ /
  Last update: 2010-06-23 00:17    [from the cache]
©2003-2011 Jasper Spaans