| From: | Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM> |
|---|---|
| To: | Heikki Linnakangas <heikki(at)enterprisedb(dot)com> |
| Cc: | "Jim C(dot) Nasby" <decibel(at)decibel(dot)org>, Greg Smith <gsmith(at)gregsmith(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Performance monitoring |
| Date: | 2007-05-14 11:12:49 |
| Message-ID: | 46484431.1070307@sun.com |
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| Lists: | pgsql-hackers pgsql-patches |
Heikki Linnakangas napsal(a):
> Jim C. Nasby wrote:
>
> There is two counters for checkpoints in pgstats, the number of timed
> (triggered by checkpoint_timeout) and requested (triggered by
> checkpoint_segments) checkpoints.
>
> Maybe we should improve the stats system so that we can collect events
> with timestamps and durations, but in my experience log files actually
> are the most reliable and universal way to collect real-time performance
> information. Any serious tool has a generic log parser. The other
> alternative is SNMP. I welcome the efforts on pgsnmpd..
Whats about add some DTrace probes?
Zdenek
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