We have a problem concerning the performance of the SUEntitiesAddGroup function. When we are writing an average sized sketchup file of about 14MB, to which about 1500 groups have been added by this function, then this export takes about 60 seconds and a performance analysis shows that 98% of the time are used by this function.
Also, a large part of the time in this function is used by
_towupper_l, a character conversion function.
Is there anything I could do to avoid this problem? In the moment this is our main performance bottleneck.