Re: [gdal-dev] Why is saving an array to ENVI file format using SaveArray so slow?

2015-07-26 Thread mike c
Dear Even and GDAL community Thanks for the feedback. After receiving your email I tried to narrow down the source of the problem. On further investigation it seems like indeed, like you, writing to my local disk is quick. I notice, however, the problem occurs when writing to file

[gdal-dev] Why is saving an array to ENVI file format using SaveArray so slow?

2015-07-24 Thread mike c
Dear GDAL Developers I’m finding that when saving a relatively small array (shape = 128,4000,128 ie 128 band x 4000 lines x 128 columns of float data = 256Mb total) to a ENVI file format using the call: gdalnumeric.SaveArray(img,strf_out,'ENVI') performance is extremely slow (~260 s