Horton

Re: Measuring relation free space

Greg Smith <greg@2ndquadrant.com>

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From: Greg Smith <greg@2ndQuadrant.com>
To: Robert Treat <rob@xzilla.net>
Cc: Mark Kirkwood <mark.kirkwood@catalyst.net.nz>, Bernd Helmle <mailings@oopsware.de>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2011-11-09T00:19:00Z
Lists: pgsql-hackers 
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@2ndQuadrant.com   Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support  www.2ndQuadrant.us