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

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Message-ID: <20190625142242.oxltqbj2veuckoxo@MacBook-Pro-91.local>
Date:   Tue, 25 Jun 2019 10:22:43 -0400
From:   Josef Bacik <josef@...icpanda.com>
To:     "Huang, Ying" <ying.huang@...el.com>
Cc:     Josef Bacik <josef@...icpanda.com>,
        kernel test robot <rong.a.chen@...el.com>,
        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

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)

I can't even figure out from the job file or anything how I'm supposed to run
AIM7 itself.  This is on a Fedora 30 box, so it's relatively recent.  Thanks,

Josef