[GRASS-dev] [GRASS GIS] #2349: CELL raster format: make ZLIB level 3 standard compression instead of RLE

[GRASS GIS]

#2349: CELL raster format: make ZLIB level 3 standard compression instead of RLE
--------------------------+-------------------------------------------
  Reporter:  neteler      |      Owner:  grass-dev@…
      Type:  enhancement  |     Status:  new
  Priority:  critical     |  Milestone:  7.1.0
 Component:  Raster       |    Version:  svn-trunk
Resolution:               |   Keywords:  compression, r.compress, null
       CPU:  Unspecified  |   Platform:  All
--------------------------+-------------------------------------------

Comment (by sprice):

 Probably related to #2750, where I've implemented LZ4, LZ4HC, and ZSTD
 support in GRASS for up to 3x speedup in I/O bound modules.

 GRASS_COMPRESS_NULLS is slightly slower than not when using the original
 ZLIB, but faster when using LZ4. LZ4 does a better job compressing null
 files than ZLIB, in addition to the speedup.

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2349#comment:39>
GRASS GIS <https://grass.osgeo.org>