Size in memory occupied by the set of histograms. The total number of bins, i.e. number of histograms x number of bins/histogram is constant (10^6 bins)

Note: The AIDA_Native implementation has not been optimized for performance.

Type histos/bins AIDA_ROOT AIDA_Native ROOT Native
  total of 10^6 bins (MB) (MB) (MB)
Histogram 1D 10^4 with 100 bins 36 45 25
Histogram 1D 1000 with 1000 bins 18 37 17
Histogram 2D 100 with 100 X 100 bins 17 46 17
Histogram 3D 1 with 10^6 bins 17 55 17
Profile 1D 10^4 with 100 bins 45 53 33
Profile 1D 1000 with 1000 bins 26 45 25
Profile2D 100 with 100 X 100 bins 25 54 25

C++ test program for the PI histograms

C++ test program for the noative ROOT