On 2018-08-22 11:14:48 -0300, Avi Vallarapu wrote: > Seams like you are with the default or fairly less checkpoint_* settings. > > You need to look at several patterns to understand the best values for > these settings. > > For now, i can say 300 seconds for checkpoint_timeout could be fairly very > less. Try increasing that with a reload. > > See this => > https://www.percona.com/blog/2018/06/15/tuning-postgresql-for-sysbench-tpcc/ > > Please do note that delaying checkpointing could also increase the time for > crash recovery/shutdown, etc......... This seems to have not that much to do with the problem the OP has, no? I suggest just using pmap -d $process_id_of_checkpointer that'll likely show that it doesn't actually use much memory, but that the RSS originates from the shared memory it has touched. - Andres
