id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc 3124,GDALDataset::BlockBasedRasterIO() does not use overviews,warmerdam,warmerdam,"It appears that GDALDataset::BlockBasedRasterIO() does not attempt to use overviews if appropriate. This interferes in achieving appropriate performance in some cases. The problem can be reproduced by running autotest/gcore/tiff_ovr.py (trunk) with GDAL_FORCE_CACHING set to YES. Test tiff_ovr_35 will fail. It also is interfering with the performance of the GeoRaster driver in (for instance) MapServer. ",defect,closed,normal,1.6.3,GDAL_Raster,1.6.2,normal,fixed,overviews georaster,ilucena