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

[Rong Chen]

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@xxxxxxxxx> writes:
> >
> > > "Huang, Ying" <ying.huang@xxxxxxxxx> writes:
> > >
> > > > Hi, Josef,
> > > >
> > > > kernel test robot <rong.a.chen@xxxxxxxxx> 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@destiny ~/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?

Thanks,
Rong Chen


> 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