From: "Huang\, Ying" <ying.huang@intel.com>
To: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: kernel test robot <xiaolong.ye@intel.com>, <lkp@01.org>,
LKML <linux-kernel@vger.kernel.org>,
<linux-f2fs-devel@lists.sourceforge.net>, "Huang\,
Ying" <ying.huang@intel.com>
Subject: Re: [LKP] [lkp] [f2fs] ec795418c4: fsmark.files_per_sec -36.3% regression
Date: Thu, 04 Aug 2016 10:00:41 -0700 [thread overview]
Message-ID: <87bn18cvuu.fsf_-_@yhuang-mobile.sh.intel.com> (raw)
In-Reply-To: <87twfmsndf.fsf@yhuang-mobile.sh.intel.com> (Ying Huang's message of "Mon, 18 Jul 2016 13:27:24 -0700")
Hi, Jaegeuk,
"Huang, Ying" <ying.huang@intel.com> writes:
> Hi,
>
> I checked the comparison result below and found this is a regression for
> fsmark.files_per_sec, not fsmark.app_overhead.
>
> Best Regards,
> Huang, Ying
>
> kernel test robot <xiaolong.ye@intel.com> writes:
>
>> FYI, we noticed a -36.3% regression of fsmark.files_per_sec due to commit:
>>
>> commit ec795418c41850056feb956534edf059dc1155d4 ("f2fs: use percpu_rw_semaphore")
>> https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git dev-test
I found this has been merged by upstream. Do you have some plan to fix
it? Or you think the test itself has some problem?
We have another 2 regressions
- [lkp] [f2fs] 3bdad3c7ee: aim7.jobs-per-min -25.3% regression
- [lkp] [f2fs] b93f771286: aim7.jobs-per-min -81.2% regression
they are merged by upstream now too. So same questions for them too.
Best Regards,
Huang, Ying
>> in testcase: fsmark
>> on test machine: 72 threads Haswell-EP with 128G memory
>> with following parameters:
> cpufreq_governor=performance/disk=1SSD/filesize=8K/fs=f2fs/iterations=8/nr_directories=16d/nr_files_per_directory=256fpd/nr_threads=4/sync_method=fsyncBeforeClose/test_size=72G
>>
>>
>>
>> Disclaimer:
>> Results have been estimated based on internal Intel analysis and are provided
>> for informational purposes only. Any difference in system hardware or software
>> design or configuration may affect actual performance.
>>
next prev parent reply other threads:[~2016-08-04 17:03 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-18 2:09 [lkp] [f2fs] ec795418c4: fsmark.app_overhead -36.3% regression kernel test robot
2016-07-18 20:27 ` [LKP] " Huang, Ying
2016-08-04 17:00 ` Huang, Ying [this message]
2016-08-04 17:24 ` [LKP] [lkp] [f2fs] ec795418c4: fsmark.files_per_sec " Jaegeuk Kim
2016-08-04 17:44 ` Huang, Ying
2016-08-04 18:52 ` Jaegeuk Kim
2016-08-04 20:36 ` Huang, Ying
2016-08-11 22:49 ` Huang, Ying
2016-08-12 1:22 ` Jaegeuk Kim
2016-08-24 16:51 ` huang ying
2016-08-27 0:52 ` Jaegeuk Kim
2016-08-27 2:13 ` Fengguang Wu
2016-08-30 2:30 ` Jaegeuk Kim
2016-08-30 16:44 ` Huang, Ying
2016-09-26 6:26 ` Huang, Ying
2016-09-26 18:23 ` Jaegeuk Kim
2016-09-27 0:50 ` Huang, Ying
2016-09-27 1:41 ` Jaegeuk Kim
2016-10-31 3:14 ` Huang, Ying
2016-10-31 17:42 ` Jaegeuk Kim
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87bn18cvuu.fsf_-_@yhuang-mobile.sh.intel.com \
--to=ying.huang@intel.com \
--cc=jaegeuk@kernel.org \
--cc=linux-f2fs-devel@lists.sourceforge.net \
--cc=linux-kernel@vger.kernel.org \
--cc=lkp@01.org \
--cc=xiaolong.ye@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).