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Re: understanding postgres issues/bottlenecks

From: Simon Waters <simonw(at)zynet(dot)net>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: understanding postgres issues/bottlenecks
Date: 2009-01-07 09:31:25
Message-ID: 200901070931.26788.simonw@zynet.net (view raw or flat)
Thread:
Lists: pgsql-performance
On Wednesday 07 January 2009 04:17:10 M. Edward (Ed) Borasky wrote:
> 
> 1. The package it lives in is called "sysstat". Most Linux distros do
> *not* install "sysstat" by default. Somebody should beat up on them
> about that. :)

Hehe, although sysstat and friends did have issues on Linux for a long time. 
Nothing worse than misleading stats, so I suspect it lost a lot of friends 
back then. It is a lot better these days when most of the "Unix" software 
targets Linux first, and other kernels second.

Aside from all the advice here about system tuning, as a system admin I'd also 
ask is the box doing the job you need? And are you looking at the Postgres 
log (with logging of slow queries) to see that queries perform in a sensible 
time? I'd assume with the current performance figure there is an issue 
somewhere, but I've been to places where it was as simple as adding one 
index, or even modifying an index so it does what the application developer 
intended instead of what they ask for ;)

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