Sorry, it was typo from my side. I meant strace only. I will try to request both perf and strace to be installed. But I am not quite sure as the VMs are managed by third party. Will keep you posted... The main thing puzzling to me is Explain Plan with Analyze takes couple of secs to execute the operation but in reality it runs for more than 20 mins. Thanks. -- View this message in context: http://postgresql.1045698.n5.nabble.com/Hot-Standby-performance-issue-tp5774673p5775529.html Sent from the PostgreSQL - performance mailing list archive at Nabble.com. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance