[gdal-dev] How to improve gdal_rasterize perfomance?

[Hermann Peifer]

Frank Warmerdam wrote:
> This sounds like a heap of processing that needs to be done.
>
> You can increase the chunk size on which gdal_rasterize operates by
> increasing the GDAL_CACHEMAX config option.  I would suggest sizing
> it to be roughly 1/3 of your machine RAM.
>
> eg.
>
> gdal_rasterize --config GDAL_CACHEMAX 600 ...
>
> would be appropriate on a machine with 2GB of RAM.
>
> Beyond that I can't think of much that might help.  The above basically
> reduces the number of passes needed through the vector data.  It is all
> processed once for each chunk of the raster that is processed.

Thanks.

Could the performance be improved by optimizing my blank tif: e.g. 
compressed or not, tiled or not?

Hermann