On Thu, Jul 6, 2017 at 10:54 AM, Ye Xiaolong wrote: > Hi, Ming Lei > > On 07/06, Ming Lei wrote: >>Hi Xiaolong, >> >>On Mon, Jul 3, 2017 at 10:57 AM, kernel test robot >> 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