I'm building GDAL 2.0 with JPEG-2000 support for my current project and I was surprised about the performance differences I saw between JasPer and OpenJPEG. Using JasPer, gdal_translate is able to decompress a 465 MB NITF C8 file in 2.3 minutes (wall clock) even though JasPer runs single-threaded. OpenJPEG took 4.4 minutes (wall clock) and used 24.5 minutes in CPU time across the four threads that were spawned. Is there some trick to building OpenJPEG that I'm not following or has anyone tried to multithread JasPer?
Thanks in advance, --Eric -- View this message in context: http://osgeo-org.1560.x6.nabble.com/JasPer-vs-OpenJPEG-performance-tp5218901.html Sent from the GDAL - Dev mailing list archive at Nabble.com. _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
