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
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