temp directory remain empty

[Milo van der Linden]

Hello list,

My mapserver is not running optimal.

I serve a global bathymetry raster and the maps that users request are 
always based upon a fixed extent (country boundaries)
- Somehow nothing happens in my map-temp directory, I see no temp files 
appear.
- If I manage to get temp files into my map-temp, will mapserver use 
them as cache?
- Are there other ways to set up caching with mapservers?

Any tip at all will be highly appreciated.

Kind regards,

Milo van der Linden