Re: [lkp-robot] [scsi] 5c279bd9e4: blogbench.read_score -10.0% regression

[Ming Lei]

On Thu, Jul 6, 2017 at 10:54 AM, Ye Xiaolong <xiaolong.ye@xxxxxxxxx> 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@xxxxxxxxx> 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