[GRASS-dev] [GRASS GIS] #3173: slow raster processing on r.external connected jpeg2000 layers

[GRASS GIS]

#3173: slow raster processing on r.external connected jpeg2000 layers
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  Reporter:  dnewcomb  |      Owner:  grass-dev@…
      Type:  defect    |     Status:  new
  Priority:  normal    |  Milestone:  7.2.0
 Component:  Raster    |    Version:  svn-releasebranch72
Resolution:            |   Keywords:  r.external, GDAL
       CPU:  x86-64    |   Platform:  MSWindows 7
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Comment (by dnewcomb):

 Looks like the best option for an open source stack is the JP2OpenJPEG
 driver, which is what is installed with the gdal version that in the
 Wingrass standalone binary.

 What confuses me is that a straight r.in.gdal to read , uncompress, and
 import the data takes seconds, while read, uncompress, and analyze takes
 substantially longer.

 Will try to confirm that it happens on Linux as well before digging
 deeper.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3173#comment:4>
GRASS GIS <https://grass.osgeo.org>