| From: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> |
|---|---|
| To: | Alexander Korotkov <aekorotkov(at)gmail(dot)com> |
| Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: WIP: Fast GiST index build |
| Date: | 2011-06-16 18:26:45 |
| Message-ID: | 4DFA4AE5.1010806@enterprisedb.com |
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| 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
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