Windowed vs tiled in to_raster

[andhuang-CLGX]

In https://corteva.github.io/rioxarray/stable/examples/dask_read_write.html: tiled is used, but not documented. What's the difference between tiled vs windowed?

ds.rio.to_raster("test.tif", driver="COG", tiled=True, windowed=True)

[snowman2]

https://corteva.github.io/rioxarray/stable/rioxarray.html#rioxarray.raster_dataset.RasterDataset.to_raster

windowed (bool, optional) – If True, it will write using the windows of the output raster. This is useful for loading data in chunks when writing. Does not do anything when writing with dask. Default is False.

tiled - see: https://gdal.org/drivers/raster/gtiff.html#creation-options

[andhuang-CLGX]

From that, do I need to add NUM_THREADS or num_threads=8 too if I am using multiple threads?

[andhuang-CLGX]

Nevermind, that seems to be only for compression related stuff.

[andhuang-CLGX]

Nevermind on the nevermind! By specifying num_threads=4, it cut the processing time by half!!