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

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81

#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: 7.4.1
Component: Raster | Version: svn-releasebranch74
Resolution: | Keywords: ZLIB LZ4 ZSTD
       CPU: OSX/Intel | Platform: MacOSX
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Changes (by neteler):

* version: svn-trunk => svn-releasebranch74

Comment:

Compress NULL file by default since r71674. On 12 Nov 2017: Creation of
the GRASS GIS 7.4 release branch (r71701), hence it is default also in
7.4.0.

Concerning ZSTD compression: backport candidate for 7.4.1.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2750#comment:69&gt;
GRASS GIS <https://grass.osgeo.org>

82

#2750: LZ4 when writing raster rows; better than double I/O bound r.mapcalc speed
--------------------------+---------------------------------
  Reporter: sprice | Owner: grass-dev@…
      Type: enhancement | Status: new
  Priority: normal | Milestone: 7.4.1
Component: Raster | Version: svn-releasebranch74
Resolution: | Keywords: ZLIB LZ4 ZSTD
       CPU: OSX/Intel | Platform: MacOSX
--------------------------+---------------------------------

Comment (by neteler):

Concerning LZ4 compression: Shall this be backported?

  * r71999 libgis: update lz4 to 1.8.0

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2750#comment:70&gt;
GRASS GIS <https://grass.osgeo.org>

83

#2750: LZ4 when writing raster rows; better than double I/O bound r.mapcalc speed
--------------------------+---------------------------------
  Reporter: sprice | Owner: grass-dev@…
      Type: enhancement | Status: new
  Priority: normal | Milestone: 7.6.0
Component: Raster | Version: svn-releasebranch74
Resolution: | Keywords: ZLIB LZ4 ZSTD
       CPU: All | Platform: All
--------------------------+---------------------------------
Changes (by neteler):

* platform: MacOSX => All
* cpu: OSX/Intel => All
* milestone: 7.4.2 => 7.6.0

Comment:

All including ZSTD compression is available and tested in the upcoming
7.6.0 (see relbranch76).

Thanks for much for all the contributions here! Closing.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2750#comment:72&gt;
GRASS GIS <https://grass.osgeo.org>

84

#2750: LZ4 when writing raster rows; better than double I/O bound r.mapcalc speed
--------------------------+---------------------------------
  Reporter: sprice | Owner: grass-dev@…
      Type: enhancement | Status: closed
  Priority: normal | Milestone: 7.6.0
Component: Raster | Version: svn-releasebranch74
Resolution: fixed | Keywords: ZLIB LZ4 ZSTD
       CPU: All | Platform: All
--------------------------+---------------------------------
Changes (by neteler):

* status: new => closed
* resolution: => fixed

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2750#comment:73&gt;
GRASS GIS <https://grass.osgeo.org>