[NeXus-committee] DECTRIS example summary

["V. Armando Solé"]

Hi Pete,

If I remember well the discussions at PSI, DECTRIS wants to be able to 
dump the data as fast as possible.

If you consider you are issuing a command that involves the collection 
of thousands of images, one can "assume" a single NXentry describes the 
result and that a 3-D dataset could easilly do the job. However, DECTRIS 
wanted to be able to use the external storage approach for performance 
reasons *including* compression (something not available at the time of 
discussion). I thought they would use the standard HDF5 family driver 
but it seems the fact HDF5 is not taking profit of multiple threads to 
speed up things (compression) made them go towards other solution.

Armando