Re: [Testperf-general] Re: ExclusiveLock

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Cc: Simon Riggs <simon(at)2ndquadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, testperf-general(at)pgfoundry(dot)org
Subject: Re: [Testperf-general] Re: ExclusiveLock
Date: 2004-11-18 22:50:59
Message-ID: 200411181450.59521.josh@agliodbs.com
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Simon, Tom,

> The main problem on INSERTs is that it is usually the same few pages:
> the lead data block and the lead index block. There are ways of
> spreading the load out across an index, but I'm not sure what happens on
> the leading edge of the data relation, but I think it hits the same
> block each time.

I actually have several test cases for this, can you give me a trace or
profile suggestion that would show if this is happening?

--
--Josh

Josh Berkus
Aglio Database Solutions
San Francisco

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