[GRASS-dev] [GRASS GIS] #2750: LZ4 when writing raster rows; better than double I/O bound r.mapcalc speed

GRASS GIS trac at osgeo.org
Wed Feb 22 12:24:26 PST 2017


#2750: LZ4 when writing raster rows; better than double I/O bound r.mapcalc speed
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  Reporter:  sprice       |      Owner:  grass-dev@…
      Type:  enhancement  |     Status:  new
  Priority:  normal       |  Milestone:  7.2.1
 Component:  Raster       |    Version:  svn-trunk
Resolution:               |   Keywords:  ZLIB LZ4 ZSTD
       CPU:  OSX/Intel    |   Platform:  MacOSX
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Comment (by neteler):

 Replying to [comment:58 mmetz]:
 > Maybe some documentation that BZIP2 is not always providing the highest
 compression ratio, it needs to be evaluated for each dataset separately.

 Probably the notes on BZIP2 are sufficient here?

 https://grass.osgeo.org/grass72/manuals/r.compress.html#compression-
 algorithm-details

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2750#comment:59>
GRASS GIS <https://grass.osgeo.org>



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