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Date: Mon, 28 Apr 2008 14:00:37 +1000
From: David Chinner <dgc@sgi.com>
Subject: Re: [patch] xfsqa - 008 is unreliable on 64k page size
Message-ID: <20080428040037.GF103491721@sgi.com>
References: <20080408013833.GN108924158@sgi.com> <20080410044259.GI108924158@sgi.com>
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To: David Chinner <dgc@sgi.com>
Cc: xfs-dev <xfs-dev@sgi.com>, xfs-oss <xfs@oss.sgi.com>

ping again?

On Thu, Apr 10, 2008 at 02:42:59PM +1000, David Chinner wrote:
> Ping?
> 
> On Tue, Apr 08, 2008 at 11:38:33AM +1000, David Chinner wrote:
> > Test 008 is unreliable on 64k page size. The I/O size is large
> > enough that the probability of extent merging results in intermittent
> > failures due to fewer extents that the +/- 10% tolerance allows.
> > 
> > Fix by making the files larger.
> > 
> > Signed-off-by: Dave Chinner <dgc@sgi.com>
> > ---
> >  xfstests/008     |   10 +++++-----
> >  xfstests/008.out |   10 +++++-----
> >  2 files changed, 10 insertions(+), 10 deletions(-)
> > 
> > Index: xfs-cmds/xfstests/008
> > ===================================================================
> > --- xfs-cmds.orig/xfstests/008	2006-11-14 19:57:39.000000000 +1100
> > +++ xfs-cmds/xfstests/008	2008-04-08 10:18:10.641024202 +1000
> > @@ -79,13 +79,13 @@ _setup_testdir
> >  
> >  rm -f $here/$seq.out.full
> >  
> > -_do_test 1 50 "-l 5000000 -c 50 -b $pgsize"
> > -_do_test 2 100 "-l 10000000 -c 100 -b $pgsize"
> > -_do_test 3 100 "-l 10000000 -c 100 -b 512"   # test partial pages
> > +_do_test 1 50 "-l 50000000 -c 50 -b $pgsize"
> > +_do_test 2 100 "-l 100000000 -c 100 -b $pgsize"
> > +_do_test 3 100 "-l 100000000 -c 100 -b 512"   # test partial pages
> >  
> >  # rinse, lather, repeat for direct IO
> > -_do_test 4 50 "-d -l 5000000 -c 50 -b $pgsize"
> > -_do_test 5 100 "-d -l 10000000 -c 100 -b $pgsize"
> > +_do_test 4 50 "-d -l 50000000 -c 50 -b $pgsize"
> > +_do_test 5 100 "-d -l 100000000 -c 100 -b $pgsize"
> >  # note: direct IO requires page aligned IO
> >  
> >  # todo: realtime.
> > Index: xfs-cmds/xfstests/008.out
> > ===================================================================
> > --- xfs-cmds.orig/xfstests/008.out	2006-11-14 19:57:39.000000000 +1100
> > +++ xfs-cmds/xfstests/008.out	2008-04-08 11:25:52.584176769 +1000
> > @@ -1,21 +1,21 @@
> >  QA output created by 008
> >  
> > -randholes.1 : -l 5000000 -c 50 -b PGSIZE
> > +randholes.1 : -l 50000000 -c 50 -b PGSIZE
> >  ------------------------------------------
> >  holes is in range
> >  
> > -randholes.2 : -l 10000000 -c 100 -b PGSIZE
> > +randholes.2 : -l 100000000 -c 100 -b PGSIZE
> >  ------------------------------------------
> >  holes is in range
> >  
> > -randholes.3 : -l 10000000 -c 100 -b 512
> > +randholes.3 : -l 100000000 -c 100 -b 512
> >  ------------------------------------------
> >  holes is in range
> >  
> > -randholes.4 : -d -l 5000000 -c 50 -b PGSIZE
> > +randholes.4 : -d -l 50000000 -c 50 -b PGSIZE
> >  ------------------------------------------
> >  holes is in range
> >  
> > -randholes.5 : -d -l 10000000 -c 100 -b PGSIZE
> > +randholes.5 : -d -l 100000000 -c 100 -b PGSIZE
> >  ------------------------------------------
> >  holes is in range
> 
> -- 
> Dave Chinner
> Principal Engineer
> SGI Australian Software Group

-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group