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From: Zdenek Kotala <Zdenek.Kotala@Sun.COM>
To: Heikki Linnakangas <heikki@enterprisedb.com>
Cc: Jim C. Nasby <decibel@decibel.org>
Cc: Greg Smith <gsmith@gregsmith.com>
Cc: pgsql-hackers@postgresql.org
Subject: Re: Performance monitoring
Date: Mon, 14 May 2007 13:12:49 +0200
Message-ID: <46484431.1070307@sun.com> (raw)
In-Reply-To: <4646B61C.1010103@enterprisedb.com>
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	<200704030814.33999.peter_e@gmx.net>
	<Pine.GSO.4.64.0704030927180.5732@westnet.com>
	<46443F02.6060300@enterprisedb.com>
	<Pine.GSO.4.64.0705111009080.18685@westnet.com>
	<46448DC8.4050102@enterprisedb.com>
	<20070512211948.GA58786@nasby.net>
	<4646B61C.1010103@enterprisedb.com>

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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