On 01/30/2019 07:06 PM, Tim Chen wrote: > 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
I am reworking the rwsem code and reader-optimistic spinning code isn't ready with the reworked code yet. I need a bit more time to work on that and certainly keep you posted once it is ready for review. Cheers, Longman
