From: Ming Lei <tom.leiming@gmail.com>
To: Ye Xiaolong <xiaolong.ye@intel.com>
Cc: Christoph Hellwig <hch@lst.de>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
LKML <linux-kernel@vger.kernel.org>,
"James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
Linux SCSI List <linux-scsi@vger.kernel.org>, LKP ML <lkp@01.org>
Subject: Re: [lkp-robot] [scsi] 5c279bd9e4: blogbench.read_score -10.0% regression
Date: Thu, 6 Jul 2017 15:12:31 +0800 [thread overview]
Message-ID: <CACVXFVOJcJY3wYbm6LgqSDm021O+Uk-yNm9zcoLeYR+=Rn_bzg@mail.gmail.com> (raw)
In-Reply-To: <20170706025421.GB5222@yexl-desktop>
On Thu, Jul 6, 2017 at 10:54 AM, Ye Xiaolong <xiaolong.ye@intel.com> wrote:
> Hi, Ming Lei
>
> On 07/06, Ming Lei wrote:
>>Hi Xiaolong,
>>
>>On Mon, Jul 3, 2017 at 10:57 AM, kernel test robot
>><xiaolong.ye@intel.com> wrote:
>>>
>>> Greeting,
>>>
>>> FYI, we noticed a -10.0% regression of blogbench.read_score due to commit:
>>
>>Looks like related with mq scheduler, could you test the following patch to see
>>if your issue can be fixed?
>>
>>https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/commit/?h=for-linus&id=32825c45ff8f4cce937ab85b030dc693ceb1aa0a
>>
>
> Here is the comparison of commit 5c279bd9e4 and 32825c45, it does help recover
> performance back.
That is great, thanks for your test!
This patch has been in block tree, and will be pushed to v4.13.
Thanks,
Ming
prev parent reply other threads:[~2017-07-06 7:12 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-03 2:57 [lkp-robot] [scsi] 5c279bd9e4: blogbench.read_score -10.0% regression kernel test robot
2017-07-05 23:45 ` Ming Lei
2017-07-06 2:54 ` Ye Xiaolong
2017-07-06 7:12 ` Ming Lei [this message]
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