linux-kernel - Re: [lkp] [nfsd] 4aac1bf05b: -2.9% fsmark.files_per

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Message-ID: <20150929200613.66c3ab4f@synchrony.poochiereds.net>
Date:	Tue, 29 Sep 2015 20:06:13 -0400
From:	Jeff Layton <jeff.layton@...marydata.com>
To:	"Huang\, Ying" <ying.huang@...ux.intel.com>
Cc:	kernel test robot <ying.huang@...el.com>, <lkp@...org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [lkp] [nfsd] 4aac1bf05b: -2.9% fsmark.files_per_sec

On Wed, 30 Sep 2015 07:27:54 +0800
"Huang\, Ying" <ying.huang@...ux.intel.com> wrote:

> Jeff Layton <jeff.layton@...marydata.com> writes:
> 
> > On Mon, 28 Sep 2015 14:49:32 +0800
> > kernel test robot <ying.huang@...el.com> wrote:
> >
> >> FYI, we noticed the below changes on
> >> 
> >> =========================================================================================
> >> tbox_group/testcase/rootfs/kconfig/compiler/cpufreq_governor/iterations/nr_threads/disk/fs/fs2/filesize/test_size/sync_method/nr_directories/nr_files_per_directory:
> >>   lkp-ne04/fsmark/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/performance/1x/32t/1HDD/xfs/nfsv4/5K/400M/fsyncBeforeClose/16d/256fpd
> >> 
> >> commit: 
> >>   cd2d35ff27c4fda9ba73b0aa84313e8e20ce4d2c
> >>   4aac1bf05b053a201a4b392dd9a684fb2b7e6103
> >> 
> >
> > A question...
> >
> > I think my tree should now contain a fix for this, but with a
> > performance regression like this it's difficult to know for sure.
> >
> > Is there some (automated) way to request that the KTR redo this test?
> > If not, will I get a note saying "problem seems to now be fixed" or do
> > I just take a lack of further emails from the KTR about this as a sign
> > that it's resolved?
> 
> Can you provide the branch name and commit ID for your tree with fix?  I
> can confirm whether it is fixed for you.
> 
Sure:

git://git.samba.org/jlayton/linux.git nfsd-4.4

The tip commit is ed3d7c1e01a76f5ecc7444067704a82af4c2f76e.

Many thanks!
-- 
Jeff Layton <jeff.layton@...marydata.com>
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