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Message-ID: <2085bfef-a91c-8adb-402b-242e8c5d5c55@kernel.dk>
Date:   Fri, 27 May 2022 07:50:27 -0600
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Subject: Re: [io_uring] 584b0180f0:
 phoronix-test-suite.fio.SequentialWrite.IO_uring.Yes.Yes.1MB.DefaultTestDirectory.mb_s
 -10.2% regression
Content-Language: en-US
To:     kernel test robot <oliver.sang@intel.com>
Cc:     LKML <linux-kernel@vger.kernel.org>, io-uring@vger.kernel.org,
        lkp@lists.01.org, lkp@intel.com, ying.huang@intel.com,
        feng.tang@intel.com, zhengjun.xing@linux.intel.com,
        fengwei.yin@intel.com, guobing.chen@intel.com,
        ming.a.chen@intel.com, frank.du@intel.com, Shuhua.Fan@intel.com,
        wangyang.guo@intel.com, Wenhuan.Huang@intel.com,
        jessica.ji@intel.com, shan.kang@intel.com, guangli.li@intel.com,
        tiejun.li@intel.com, yu.ma@intel.com, dapeng1.mi@intel.com,
        jiebin.sun@intel.com, gengxin.xie@intel.com, fan.zhao@intel.com
References: <20220527092432.GE11731@xsang-OptiPlex-9020>
From:   Jens Axboe <axboe@kernel.dk>
In-Reply-To: <20220527092432.GE11731@xsang-OptiPlex-9020>
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Precedence: bulk

On 5/27/22 3:24 AM, kernel test robot wrote:
> 
> 
> Greeting,
> 
> FYI, we noticed a -10.2% regression of phoronix-test-suite.fio.SequentialWrite.IO_uring.Yes.Yes.1MB.DefaultTestDirectory.mb_s due to commit:
> 
> 
> commit: 584b0180f0f4d67d7145950fe68c625f06c88b10 ("io_uring: move read/write file prep state into actual opcode handler")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
> 
> in testcase: phoronix-test-suite
> on test machine: 96 threads 2 sockets Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 512G memory
> with following parameters:
> 
> 	test: fio-1.14.1
> 	option_a: Sequential Write
> 	option_b: IO_uring
> 	option_c: Yes
> 	option_d: Yes
> 	option_e: 1MB
> 	option_f: Default Test Directory
> 	cpufreq_governor: performance
> 	ucode: 0x500320a
> 
> test-description: The Phoronix Test Suite is the most comprehensive testing and benchmarking platform available that provides an extensible framework for which new tests can be easily added.
> test-url: http://www.phoronix-test-suite.com/

I'm a bit skeptical on this, but I'd like to try and run the test case.
Since it's just a fio test case, why can't I find it somewhere? Seems
very convoluted to have to setup lkp-tests just for this. Besides, I
tried, but it doesn't work on aarch64...

-- 
Jens Axboe