On 2013-12-04 18:43:35 +0200, Metin Doslu wrote: > > I'd strongly suggest doing a "perf record -g -a <wait a bit, ctrl-c>; > > perf report" run to check what's eating up the time. > > Here is one example: > > + 38.87% swapper [kernel.kallsyms] [k] hypercall_page > + 9.32% postgres [kernel.kallsyms] [k] hypercall_page > + 6.80% postgres [kernel.kallsyms] [k] xen_set_pte_at All that time is spent in your virtualization solution. One thing to try is to look on the host system, sometimes profiles there can be more meaningful. Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
