gdal 1.8.0 slow

[noog]

hello i upgraded my version of gdal from 1.7.3 to 1.8.0 but the new version is very slow this is the result

gdal 1.7.3

  0.76 %       155 / 20412    --- lvl 17 :   0.02 %         5 / 20412     time :       3 s        remain.   6mn 32s
gdalwarp -s_srs EPSG:27561 -t_srs EPSG:4326 -of GTiff -dstalpha -r lanczos -ts 256 256 -te 7.646484375 48.425555463221 7.6492309570312 48.427378042075 "./ortho/ortho2007.ecw" "./tmp/5b00677a35a1f0070de56cd215e88eea/tile.tif"

gdal 1.8.0

  0.74 %       151 / 20412    --- lvl 17 :      0 %         1 / 20412     time :      20 s        remain.  44mn 44s
gdalwarp -s_srs EPSG:27561 -t_srs EPSG:4326 -of GTiff -dstalpha -r lanczos -ts 256 256 -te 7.635498046875 48.425555463221 7.6382446289062 48.427378042075 "./ortho/ortho2007.ecw" "./tmp/7fd1a07d8c9fbeeb43edcab84b249362/tile.tif"

[warmerdam]

Unfortunately this isn't much information to go on.

One thing I'm suspecting is that the slowness might relate to use of the ecw file as input. The ECW driver has been updated substantially and in some access patterns it might be slower. Could you try translating your input file to TIFF first to see if the ECW driver is the culprit?

Depending on what we find out from that we will either need the input file, or perhaps a gdalinfo report on the input file so we can setup something similar.