Am 04.03.2013 12:05, schrieb Florian Klämpfl:
Am 04.03.2013 01:00, schrieb Graeme Geldenhuys:
4.4 seconds (Kylix under Linux) vs 89 seconds (FPC under Linux)... That
is just too a huge performance difference to justify. Yes, we all know
the argument about more platforms, maintainable code etc, but that
couldn't possible be the only reason for such a huge speed difference.
Somewhere there is a serious bottleneck(s), or the FPC team simply
disregard optimization completely. From why I have heard them say, the
latter is more likely [unfortunately].
You completely miss the point. If there are only approx 25
features/properties which make the compiler each 10% slower than in
total FPC is 10 (1.1^25=10.9) times slower than before. Let me name some
of the stuff which might count only 10% each (some more, some less) but
in total makes FPC much slower:
- class helpers
- generics
These two should not result in much slowdowns if not used. Especially
for helpers I've taken care of it. Though I admit that there is room for
improvement for generics (but I already have ideas for that :) )
Regards,
Sven
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