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From: Yin Fengwei <fengwei.yin@intel.com>
To: Jens Axboe <axboe@kernel.dk>, 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>
Subject: Re: [LKP] Re: [io_uring] 584b0180f0: phoronix-test-suite.fio.SequentialWrite.IO_uring.Yes.Yes.1MB.DefaultTestDirectory.mb_s -10.2% regression
Date: Tue, 19 Jul 2022 08:27:45 +0800	[thread overview]
Message-ID: <a6567482-0fcf-4bff-87e7-81a41a77e928@intel.com> (raw)
In-Reply-To: <7146c853-0ff8-3c92-c872-ce6615baab40@kernel.dk>



On 7/19/2022 12:27 AM, Jens Axboe wrote:
> On 7/17/22 9:30 PM, Yin Fengwei wrote:
>> Hi Jens,
>>
>> On 7/15/2022 11:58 PM, Jens Axboe wrote:
>>> In terms of making this more obvious, does the below also fix it for
>>> you?
>>
>> The regression is still there after applied the change you posted.
> 
> Still don't see the regression here, using ext4. I get about 1020-1045
> IOPS with or without the patch you sent.
> 
> This is running it in a vm, and the storage device is nvme. What is
> hosting your ext4 fs?
> 
My local testing system is also a vm with SATA disk. LKP test platform
is a native one with SATA disk.

I could reproduce the regression on both environment. I will try to use
nvme to host my local vm disk and check whether we could see something
different.


Regards
Yin, Fengwei

  reply	other threads:[~2022-07-19  0:28 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20220527092432.GE11731@xsang-OptiPlex-9020>
2022-05-27 13:50 ` [io_uring] 584b0180f0: phoronix-test-suite.fio.SequentialWrite.IO_uring.Yes.Yes.1MB.DefaultTestDirectory.mb_s -10.2% regression Jens Axboe
2022-06-08  8:00   ` Oliver Sang
2022-06-14  1:54   ` [LKP] " Yin Fengwei
2022-07-12  8:06   ` Yin Fengwei
2022-07-15 15:58     ` Jens Axboe
2022-07-18  0:58       ` Yin Fengwei
2022-07-18  1:14         ` Jens Axboe
2022-07-18  3:30       ` Yin Fengwei
2022-07-18 16:27         ` Jens Axboe
2022-07-19  0:27           ` Yin Fengwei [this message]
2022-07-19  2:16           ` Yin Fengwei
2022-07-19  2:29             ` Jens Axboe
2022-07-19  8:58               ` Yin Fengwei
2022-07-20 17:24                 ` Jens Axboe
2022-07-20 18:13                   ` Jens Axboe
2022-07-20 23:25                     ` Yin Fengwei
2022-07-21  2:59                     ` Yin Fengwei
2022-07-21  3:08                   ` Yin Fengwei

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