[postgis-users] raster efficiency

Pierre Racine Pierre.Racine at sbf.ulaval.ca
Fri Mar 30 06:47:25 PDT 2012

> I found quite to calculate a profile: it takes approx 1-2 secondes to calculate a
> profile of 4-6 points.
> Is there any thing that I can do to fasten the process?

How do you compute your profile?

> What is the best strategy: having more small rasters or a single big one?

For raster/vector operations, smaller raster tiles (10x10) is generally preferable/faster.


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