Re: [LKP] [mm] 9bc8039e71: will-it-scale.per_thread_ops -64.1% regression

Tim Chen
2019-01-31T00:06:41Z

On 12/27/18 6:55 PM, Waiman Long wrote:
> On 12/27/2018 08:31 PM, Wang, Kemi wrote:
>> Hi, Waiman
>> Did you post that patch? Let's see if it helps.
>
> I did post the patch a while ago. I will need to rebase it to a new
> baseline. Will do that in a week or 2.
>
> -Longman
>

Waiman,

In a large scale OLTP benchmark, we are also seeing a 1% loss in performance
from patch 9bc8039e71. We'll be interested to try out your patch to
restore some optimistic spinning on reader held sem.

Thanks.

Tim