On 2016-04-13 16:05:25 -0500, Kevin Grittner wrote: > OK, thanks. I can't think of anything else to ask for at this > point. If you feel that you have enough to press for some > particular course of action, go for it.
I think we, at the very least, need a clear proposal how to resolve the scalability issue around OldSnapshotTimeMapLock in 9.6. Personally I think we shouldn't release with such a large regression due to a performance oriented feature; but if we do, we need to be confident that we can easily resolve it for 9.7. In contrast to the spinlock issue I don't see an easy way unfortunately. Without such a plan it seems too likely to go unfixed for a long time otherwise. > Personally, I want to do some more investigation on those big > machines. Sounds good, especially around the regression with the feature disabled. Andres -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers