Hi,

let me comment on the current apt.dat performance i.e.

of the time spent in fgAirportDBLoad:

~25% of time time is spent in simgear::strutils::split
~10% is spent in atof()

Measured with Intel VTune using MS Visualc C++ 2005.

IMHO it is an indicator that we should not use a plain text format. I
have no experiences with the performance of binary XML
representations.

Cheers
  Olaf


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