Clarify cache parameters about livre HOT 3 CLOSED

As I have said before;

Data on disk can be 16 bits and visualisation can be 8 bit therefore data needs to be normalised and it can be time consuming. So texture data is the normalised/converted data.

Data on the other hand the raw data read from the IO. It decreases the IO access in this sense.

The latter question answer is yes.

from livre.

We can maybe remove one of them. It is a bit too explicit I agree.

from livre.

+1
The two data caches can/should be merged from a user point of view. Then, the default size for this cache should have a reasonable default, some percentage of the system memory (today, the 1GB for data cache is typically too small).

from livre.