Re: WIP: Fast GiST index build

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