Re: experiments in query optimization

From: Faheem Mitha <faheem(at)email(dot)unc(dot)edu>
To: Matthew Wakeling <matthew(at)flymine(dot)org>
Cc: Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>, Robert Haas <robertmhaas(at)gmail(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: experiments in query optimization
Date: 2010-03-31 09:36:11
Message-ID: alpine.DEB.2.00.1003311505040.13883@orwell.homelinux.org
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On Wed, 31 Mar 2010, Matthew Wakeling wrote:

> On Tue, 30 Mar 2010, Faheem Mitha wrote:
>>>> work_mem = 1 GB (see diag.{tex/pdf}).
>>
>> Sure, but define sane setting, please. I guess part of the point is that
>> I'm trying to keep memory low
>
> You're trying to keep memory usage low, but you have work_mem set to 1GB?

I'm trying to keep both runtime and memory usage low. I assume that with
lower levels of memory, the runtime would be longer, other things being
equal.
Regards, Faheem.

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