linux-kernel - Re: [LKP] [btrfs] c8eaeac7b7: aim7.jobs-per-min -11.7% regression

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Message-ID: <87pnml0zrk.fsf@yhuang-dev.intel.com>
Date:   Mon, 08 Jul 2019 15:08:31 +0800
From:   "Huang\, Ying" <ying.huang@...el.com>
To:     Josef Bacik <josef@...icpanda.com>
Cc:     David Sterba <dsterba@...e.com>, <lkp@...org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [LKP] [btrfs] c8eaeac7b7: aim7.jobs-per-min -11.7% regression

Rong Chen <rong.a.chen@...el.com> writes:

> On 6/26/19 11:17 AM, Josef Bacik wrote:
>> On Wed, Jun 26, 2019 at 10:39:36AM +0800, Rong Chen wrote:
>>> On 6/25/19 10:22 PM, Josef Bacik wrote:
>>>> On Fri, Jun 21, 2019 at 08:48:03AM +0800, Huang, Ying wrote:
>>>>> "Huang, Ying" <ying.huang@...el.com> writes:
>>>>>
>>>>>> "Huang, Ying" <ying.huang@...el.com> writes:
>>>>>>
>>>>>>> Hi, Josef,
>>>>>>>
>>>>>>> kernel test robot <rong.a.chen@...el.com> writes:
>>>>>>>
>>>>>>>> Greeting,
>>>>>>>>
>>>>>>>> FYI, we noticed a -11.7% regression of aim7.jobs-per-min due to commit:
>>>>>>>>
>>>>>>>>
>>>>>>>> commit: c8eaeac7b734347c3afba7008b7af62f37b9c140 ("btrfs: reserve
>>>>>>>> delalloc metadata differently")
>>>>>>>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
>>>>>>>>
>>>>>>>> in testcase: aim7
>>>>>>>> on test machine: 40 threads Intel(R) Xeon(R) CPU E5-2690 v2 @ 3.00GHz with 384G memory
>>>>>>>> with following parameters:
>>>>>>>>
>>>>>>>> 	disk: 4BRD_12G
>>>>>>>> 	md: RAID0
>>>>>>>> 	fs: btrfs
>>>>>>>> 	test: disk_rr
>>>>>>>> 	load: 1500
>>>>>>>> 	cpufreq_governor: performance
>>>>>>>>
>>>>>>>> test-description: AIM7 is a traditional UNIX system level benchmark
>>>>>>>> suite which is used to test and measure the performance of multiuser
>>>>>>>> system.
>>>>>>>> test-url: https://sourceforge.net/projects/aimbench/files/aim-suite7/
>>>>>>> Here's another regression, do you have time to take a look at this?
>>>>>> Ping
>>>>> Ping again ...
>>>>>
>>>> Finally got time to look at this but I can't get the reproducer to work
>>>>
>>>> root@...tiny ~/lkp-tests# bin/lkp run ~/job-aim.yaml
>>>> Traceback (most recent call last):
>>>>           11: from /root/lkp-tests/bin/run-local:18:in `<main>'
>>>>           10: from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:54:in `require'
>>>>            9: from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:54:in `require'
>>>>            8: from /root/lkp-tests/lib/yaml.rb:5:in `<top (required)>'
>>>>            7: from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:54:in `require'
>>>>            6: from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:54:in `require'
>>>>            5: from /root/lkp-tests/lib/common.rb:9:in `<top (required)>'
>>>>            4: from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:54:in `require'
>>>>            3: from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:54:in `require'
>>>>            2: from /root/lkp-tests/lib/array_ext.rb:3:in `<top (required)>'
>>>>            1: from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:54:in `require'
>>>> /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:54:in `require': cannot load such file -- active_support/core_ext/enumerable (LoadError)
>>> Hi Josef,
>>>
>>> I tried the latest lkp-tests, and didn't have the problem. Could you please
>>> update the lkp-tests repo and run "lkp install" again?
>>>
>> I updated it this morning, and I just updated it now, my tree is on
>>
>> 2c5b1a95b08dbe81bba64419c482a877a3b424ac
>>
>> lkp install says everything is installed except
>>
>> No match for argument: libipc-run-perl
>
> I've just fixed it. could you add "libipc-run-perl: perl-IPC-Run" to
> the end of distro/adaptation/fedora?
>
> Thanks,
> Rong Chen
>
>
>>
>> and it still doesn't run properly.  Thanks,

Hi, Josef,

Do you have time to try it again?  The latest lkp-tests code has the fix merged.

Best Regards,
Huang, Ying

>>
>> Josef