Re: [gdal-dev] Slow warping

2015-11-27 Thread Ari Jolma
27.11.2015, 14:10, Even Rouault kirjoitti: Try setting GDAL_CACHEMAX to 150 (6048 * 4032 * 3 = 73 MB. and a x 2 security margin) This reduces the time into 4 s. Quite a bit reduction from several hours. Maybe the default is too low? 150 MB does not seem much. Ari _

Re: [gdal-dev] Slow warping

2015-11-27 Thread Even Rouault
Le vendredi 27 novembre 2015 12:58:01, Ari Jolma a écrit : > I warped an image for which I estimated a geotransform. I'm wondering > why it took so long (hours). > > My source image is a jpeg, lets call it src.jpg. I add the geotransform > as a jpgw-file. > > This goes fast: > > gdal_translate -

[gdal-dev] Slow warping

2015-11-27 Thread Ari Jolma
I warped an image for which I estimated a geotransform. I'm wondering why it took so long (hours). My source image is a jpeg, lets call it src.jpg. I add the geotransform as a jpgw-file. This goes fast: gdal_translate -of JPEG src.jpg test.jpg Input file size is 6048, 4032 0...10...20...30..