[gdal-dev] Re: Strange things with gdalwarp ...

Robert Coup robert.coup at onetrackmind.co.nz
Sun Aug 16 15:52:24 EDT 2009

On Sat, Aug 15, 2009 at 10:57 PM, Hermann Peifer <peifer at gmx.eu> wrote:

> I have the same observation while working with ASTER GDEM tiles (1x1 degree
> tiles, 3601x3601 pixel each). When warping/merging, say: 10 tiles into a
> single outfile.tif, then it takes gdalwarp around 5 seconds per tile to do
> the job:

Does creating a tiled tiff (-co TILED=YES) make any difference? It should
improve random access, which is what writing new data to image blocks is.

Rob :)
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