linux-kernel - Re: [io_uring] 584b0180f0: phoronix-test-suite.fio.SequentialWrite.IO_uring.Yes.Yes.1MB.DefaultTestDirectory.mb

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Date:   Fri, 27 May 2022 07:50:27 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     kernel test robot <oliver.sang@...el.com>
Cc:     LKML <linux-kernel@...r.kernel.org>, io-uring@...r.kernel.org,
        lkp@...ts.01.org, lkp@...el.com, ying.huang@...el.com,
        feng.tang@...el.com, zhengjun.xing@...ux.intel.com,
        fengwei.yin@...el.com, guobing.chen@...el.com,
        ming.a.chen@...el.com, frank.du@...el.com, Shuhua.Fan@...el.com,
        wangyang.guo@...el.com, Wenhuan.Huang@...el.com,
        jessica.ji@...el.com, shan.kang@...el.com, guangli.li@...el.com,
        tiejun.li@...el.com, yu.ma@...el.com, dapeng1.mi@...el.com,
        jiebin.sun@...el.com, gengxin.xie@...el.com, fan.zhao@...el.com
Subject: Re: [io_uring] 584b0180f0:
 phoronix-test-suite.fio.SequentialWrite.IO_uring.Yes.Yes.1MB.DefaultTestDirectory.mb_s
 -10.2% regression

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