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Subject: Re: [mm] e6e88712e4: stress-ng.tmpfs.ops_per_sec -69.7% regression
To:     Matthew Wilcox <willy@infradead.org>
Cc:     Linus Torvalds <torvalds@linux-foundation.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Johannes Weiner <hannes@cmpxchg.org>,
        Alexey Dobriyan <adobriyan@gmail.com>,
        Chris Wilson <chris@chris-wilson.co.uk>,
        Huang Ying <ying.huang@intel.com>,
        Hugh Dickins <hughd@google.com>,
        Jani Nikula <jani.nikula@linux.intel.com>,
        Matthew Auld <matthew.auld@intel.com>,
        William Kucharski <william.kucharski@oracle.com>,
        Qian Cai <cai@redhat.com>, LKML <linux-kernel@vger.kernel.org>,
        lkp@lists.01.org, lkp@intel.com, feng.tang@intel.com,
        zhengjun.xing@intel.com
References: <20201030071715.GV31092@shao2-debian>
 <20201030131711.GJ27442@casper.infradead.org>
From:   "Chen, Rong A" <rong.a.chen@intel.com>
Message-ID: <dc3864d6-f474-02b8-fdf2-ca138afe3735@intel.com>
Date:   Fri, 30 Oct 2020 22:02:45 +0800
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On 10/30/2020 9:17 PM, Matthew Wilcox wrote:
> On Fri, Oct 30, 2020 at 03:17:15PM +0800, kernel test robot wrote:
>> Details are as below:
>> -------------------------------------------------------------------------------------------------->
>>
>>
>> To reproduce:
>>
>>          git clone https://github.com/intel/lkp-tests.git
>>          cd lkp-tests
>>          bin/lkp install job.yaml  # job file is attached in this email
>>          bin/lkp run     job.yaml
> 
> Do you actually test these instructions before you send them out?
> 
> hdd_partitions: "/dev/disk/by-id/ata-WDC_WD2500BEKT-00PVMT0_WD-WX11A23L4840-part
> 1"
> ssd_partitions: "/dev/nvme1n1p1 /dev/nvme0n1p1"
> rootfs_partition: "/dev/disk/by-id/ata-INTEL_SSDSC2CW240A3_CVCV204303WP240CGN-part1"
> 
> That's _very_ specific to a given machine.  I'm not familiar with
> this test, so I don't know what I need to change.


Hi Matthew,

Sorry about that, I copied the job.yaml file from the server,
the right way to do is to set your disk partitions in the yaml,
please see https://github.com/intel/lkp-tests#run-your-own-disk-partitions.

there is another reproduce script attached in the original mail
for your reference.

Best Regards,
Rong Chen


> 
> [snipped 4000 lines of gunk]
>