Re: [gdal-dev] GDAL_retile slowdown at next level

2010-05-11 Thread christian . mueller
Hi, I am the developer of the gdal_retile.py I think the problem here is based on the following issue. To make a pyramid with tiles in the Dimension width * hight based and already tiled image with the same tile width and height, I have to load the base tile and all 8 neighbors touching the

[gdal-dev] GDAL_retile slowdown at next level

2010-05-11 Thread acangi
Hello, It looks like gdal_retile.py slows down when processing a new level of the pyramid. Source files : 8065 geotiffs orthophotos of 4000 x 4000 pixels, in total 400 GB. Command : gdal_retile.py -targetDir pyramid/ -levels 12 -v -s_srs /mnt/webgisdata/geoserver/config/3812.prj -ps 512 512 -r