[postgis-devel] [PostGIS] #2133: possible performance issue with ST_MapAlgebra

[PostGIS]

#2133: possible performance issue with ST_MapAlgebra
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 Reporter:  robe    |       Owner:  dustymugs    
     Type:  defect  |      Status:  new          
 Priority:  medium  |   Milestone:  PostGIS 2.1.0
Component:  raster  |     Version:  trunk        
 Keywords:          |  
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Comment(by dustymugs):

 Wow.  That'd be a lot of data which is ideal for performance testing.  I
 do have CA aerial imagery and parcel datasets so I'll see about trying it
 myself.

 I'd really like to see what the cold cache performance for that table is
 in 2.0 and -trunk using single user mode in PostgreSQL.  Granted, there is
 no equivalent to "echo 3 > /proc/sys/vm/drop_caches" in Windows.

 Oh.  Also the URLs for wget are no longer valid ;-)  I see Paul's recent
 blog entry coming true...

 http://blog.cleverelephant.ca/2012/12/whats-so-hard-about-that-
 download.html

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2133#comment:3>
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