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Subject: Re: [LKP] [x86, sched] 1567c3e346: vm-scalability.median -15.8%
 regression
From:   Xing Zhengjun <zhengjun.xing@linux.intel.com>
To:     Giovanni Gherdovich <ggherdovich@suse.cz>,
        kernel test robot <oliver.sang@intel.com>
Cc:     Ingo Molnar <mingo@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Doug Smythies <dsmythies@telus.net>,
        "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
        LKML <linux-kernel@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Stephen Rothwell <sfr@canb.auug.org.au>, lkp@lists.01.org
References: <20200306051916.GA23395@xsang-OptiPlex-9020>
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 <1587018059.32139.22.camel@suse.cz>
 <fdcab17c-91aa-fba0-65d1-c08af6f50842@linux.intel.com>
Message-ID: <f8fc9530-432f-0b5d-0109-916a01c65bda@linux.intel.com>
Date:   Tue, 7 Jul 2020 10:58:45 +0800
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On 6/12/2020 4:11 PM, Xing Zhengjun wrote:
> Hi Giovanni,
> 
>     I test the regression, it still existed in v5.7.  Do you have time 
> to take a look at this? Thanks.
> 

Ping...

> ========================================================================================= 
> 
> tbox_group/testcase/rootfs/kconfig/compiler/runtime/debug-setup/size/test/cpufreq_governor/ucode: 
> 
> 
> lkp-hsw-4ex1/vm-scalability/debian-x86_64-20191114.cgz/x86_64-rhel-7.6/gcc-7/300s/test/8T/anon-cow-seq/performance/0x16 
> 
> 
> commit:
>    2a4b03ffc69f2dedc6388e9a6438b5f4c133a40d
>    1567c3e3467cddeb019a7b53ec632f834b6a9239
>    v5.7-rc1
>    v5.7
> 
> 2a4b03ffc69f2ded 1567c3e3467cddeb019a7b53ec6                    v5.7-rc1 
>                         v5.7
> ---------------- --------------------------- --------------------------- 
> ---------------------------
>           %stddev     %change         %stddev     %change %stddev     
> %change         %stddev
>               \          |                \          |                \ 
>          |                \
>      211462           -16.0%     177702           -15.0%     179809      
> -15.1%     179510        vm-scalability.median
>        5.34 ±  9%      -3.1        2.23 ± 11%      -2.9        2.49 ± 
> 5%      -2.7        2.61 ± 11%  vm-scalability.median_stddev%
>    30430671           -16.3%   25461360           -15.5%   25707029      
> -15.5%   25701713        vm-scalability.throughput
>   7.967e+09           -11.1%  7.082e+09           -11.1%  7.082e+09      
> -11.1%  7.082e+09        vm-scalability.workload
> 
> 
> 
> On 4/16/2020 2:20 PM, Giovanni Gherdovich wrote:
>> On Thu, 2020-04-16 at 14:10 +0800, Xing Zhengjun wrote:
>>> Hi Giovanni,
>>>
>>>     1567c3e346("x86, sched: Add support for frequency invariance") has
>>> been merged into Linux mainline v5.7-rc1 now. Do you have time to take a
>>> look at this? Thanks.
>>>
>>
>> Apologies, this slipped under my radar. I'm on it, thanks.
>>
>>
>> Giovanni Gherdovich
>>
> 

-- 
Zhengjun Xing