Christian:
Thank you for researching my problem. "Slow" is used not for absolute
value but for comparison between read speed of the unchunked file and
chunked one. I read a single (lat, lon) point from a file at a time
for the whole available time period
I used
ncks.exe -4 --cnk_dmn lat,4 --cnk_dmn lon,4 --cnk_dmn time,512 2014.nc
2014_ch.nc
to rechunk the original file to "speed up" point reading operations.
It takes about 700 ms to read 6 neighbours points in the same
geographical region on SSD drive what I think could be much improved
with certain tuning.
Kind regards
Antonio
