force-pyramid
For faster visualization, pyramids can be generated by using force-pyramid for any cubed data, inclusively GDAL virtual format-files. Pyramid layers are copies of the original data at reduced resolution. This significantly increases loading and response times for visualization. However, keep in mind that pyramids consume some disc space.
Usage
force-pyramid [-hjrl] image [image]*
-h = show his help
-j = number of jobs
defaults to 'as many as possible'
-r = resampling option
default: nearest
-l = levels, comma-separated
default: 2 4 8 16