Horton

Re: WIP: Fast GiST index build

Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>

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From: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
To: Alexander Korotkov <aekorotkov@gmail.com>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2011-06-16T18:26:45Z
Lists: pgsql-hackers 
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