[postgis-tickets] [PostGIS] #2798: raster2pgsql spins CPU on statement timeout
PostGIS
trac at osgeo.org
Fri Jul 4 07:40:37 PDT 2014
#2798: raster2pgsql spins CPU on statement timeout
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Reporter: strk | Owner: dustymugs
Type: defect | Status: reopened
Priority: medium | Milestone: PostGIS GDAL
Component: raster | Version: trunk
Resolution: | Keywords:
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Comment(by dustymugs):
I think the source of the slowdown is the chunking of the source raster to
256x256 tiles. For each tile, rt_raster_to_hexwkb is called.
gdal_translate is faster because it isn't converting data to hex.
Everything stays binary.
Based upon that gprof, we'd have to see what we can do about improving hex
conversion performance.
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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2798#comment:13>
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