On 16.06.2011 21:13, Alexander Korotkov wrote:
> My current idea is to measure number of IO accesses by pg_stat_statements
> and measure CPU usage by /proc/PID/stat. Any thoughts?
Actually, you get both of those very easily with:
set log_statement_stats=on
LOG: QUERY STATISTICS
DETAIL: ! system usage stats:! 0.000990 elapsed 0.000000 user 0.000000 system sec! [0.000000 user 0.008000 sys
total]! 0/0 [32/0] filesystem blocks in/out! 0/0 [0/959] page faults/reclaims, 0 [0] swaps! 0 [0] signals rcvd,
0/0[0/0] messages rcvd/sent! 0/0 [10/1] voluntary/involuntary context switches
STATEMENT: SELECT generate_series(1,100);
-- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com