On 2016-06-29 19:04:31 +0530, Amit Kapila wrote: > There is nothing in this record which recorded the information about > visibility clear flag.
I think we can actually defer the clearing to the lock release? A tuple being locked doesn't require the vm being cleared. > I think in this approach, it is important to measure the performance > of update, may be you can use simple-update option of pgbench for > various workloads. Try it with different fill factors (-F fillfactor > option in pgbench). Probably not sufficient, also needs toast activity, to show the really bad case of many lock releases. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
