Re: Measuring relation free space

From: Greg Smith <greg(at)2ndQuadrant(dot)com>
To: Robert Treat <rob(at)xzilla(dot)net>
Cc: Mark Kirkwood <mark(dot)kirkwood(at)catalyst(dot)net(dot)nz>, Bernd Helmle <mailings(at)oopsware(dot)de>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Measuring relation free space
Date: 2011-11-09 00:19:00
Message-ID: 4EB9C6F4.1000204@2ndQuadrant.com
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On 11/08/2011 05:07 PM, Robert Treat wrote:
> It's already easy to get "good enough" numbers based on user space
> tools with very little overhead, so I think it's more important that
> the server side tool be accurate rather than fast.

What user space method do you consider good enough here? I haven't
found any approximation that I was really happy with; wouldn't have
bothered with this otherwise.

--
Greg Smith 2ndQuadrant US greg(at)2ndQuadrant(dot)com Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.us

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