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

[GRASS GIS]

#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:  7.1.0
 Component:  Raster       |    Version:  svn-trunk
Resolution:               |   Keywords:  ZLIB LZ4 ZSTD
       CPU:  OSX/Intel    |   Platform:  MacOSX
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Comment (by martinl):

 Replying to [comment:33 neteler]:
 > --> not yet reflected in the patch (so, the meaning of the var
 `GRASS_COMPRESS_NULLS` should be inverted or, better, implemented as
 `GRASS_NOCOMPRESS_NULLS=1`. I have terabytes of uncompressed NULL files at
 time and would like to get rid of wasting too much disk space.

 Or just perform NULL compression if environmental variable
 `GRASS_COMPRESS_NULLS` is not defined or defined and set to `1`, otherwise
 do not perform compression.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2750#comment:42>
GRASS GIS <https://grass.osgeo.org>