[GRASSLIST:5696] d.rast slower in GRASS5 than 4.3
Wayne Gibson
gibson at coas.oregonstate.edu
Fri Feb 28 13:13:14 EST 2003
Has there been a fundamental change in how GRASS displays with commands like
d.rast between 4.3 and 5.0.0 or 5.0.1? I made some comparisons and it is
definitely much slower with newer versions. I displayed 13 grids in succession
as a test
Version Time
------- ----
4.3 pre-compiled 4 sec
5.0.0 pre-compiled 9 seconds
5.0.1 compiled from src 7 seconds
The compiled from src executables were created on a SUN using the SUNWorkshop C
compiler with switches "-fast -xtarget=ultra2 -xarch=v8plusa". Those basically
expand to an optimized version for the hardware and an O3-O5 optimization level.
Should run very fast but that isn't the case.
Thanks,
Wayne
-----------------------
Wayne Gibson
Oregon State University
gibson at coas.oregonstate.edu
(541) 737-5696
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