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

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Date:   Mon, 18 Jul 2022 10:27:04 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Yin Fengwei <fengwei.yin@...el.com>,
        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
Subject: Re: [LKP] Re: [io_uring] 584b0180f0:
 phoronix-test-suite.fio.SequentialWrite.IO_uring.Yes.Yes.1MB.DefaultTestDirectory.mb_s
 -10.2% regression

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?

-- 
Jens Axboe