[MI400] Odd/Even packed numbers.

["Giuseppe Costagliola" <gcosta@xxxxxxxx>]

In the past (at S/38 times) we have been told that odd packed numbers were
not so efficient as even ones, and that - at design time - it was better to
define even packed numbers (for example 9.0 instead of 8.0).

The simple anwser could be to use 9.0 because it occupies the same storage
as 8.0, but unfotunately it occupies also one more byte in reports, panels,
etc. and - with other values - another byte for one more decimal separator.

Is there any evidence that with RISC processors this is still true?
If so, how much system performances could degrade in case of large files?

-- Giuseppe