Hi,
ext Alberto Mardegan wrote:
Right. Just to complete the picture, here's the same data with -O2:
float (fast mode enabled):
map_path_calculate_distances: 40 ms for 8250 points
map_path_calculate_distances: 2 ms for 430 points
double (fast mode enabled):
Note that fast mode affects only floats.
map_path_calculate_distances: 93 ms for 8250 points
map_path_calculate_distances: 4 ms for 430 points
(I'm not posting the same data with fast mode disabled, as it cannot be
worse than the -O0 case, which is anyway not too far from these values)
The relative preformance seems to be about the same. But then of course,
it might not be because of the FPU, but of the data transfers.
- Eero
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