[Gdal-dev] Re: JP2KAK Driver Optimization

Rahkonen Jukka Jukka.Rahkonen at mmmtike.fi
Fri Feb 9 04:04:17 EST 2007

Frank Warmerdam  writes:

> Folks,
> 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. 

-Jukka Rahkonen-

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