[Gdal-dev] Re: JP2KAK Driver Optimization
Jukka.Rahkonen at mmmtike.fi
Fri Feb 9 04:04:17 EST 2007
Frank Warmerdam writes:
> I have implemented optimized IRasterIO() functions on the JP2KAK driver.
> This can give a substantial speed up (as much as a factor of 3) for for
> applications making single big windowed requests. However, it can also
> result in substantial negative performance characteristics for applications
> many small requests.
> I don't consider this optimized driver all that safe, and I don't plan to
> take it back to the gdal 1.4 branch for the time being. I would appreciate
> feedback from folks using it.
Is there any simple way to test this new driver with MapServer? I have a ready
made test set available and MapServer from FWTools including the old JP2KAK and
JP2ECW drivers to compare with.
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