[wx-dev] inline virtual functions problems on the iphone .... [solved, sort of]

[Stefan Csomor]

Hi Vadim

> Second, I'm surprised
> to hear that turning off Thumb can decrease the performance -- from what I
> thought (and this seems to be confirmed by the article you linked to in the
> previous message), Thumb optimizes code size at expense of performance,
> i.e. performance should be better without using it.
> 
>  OTOH for wx it's almost certainly the code size which counts so it would
> be still better to use Thumb if possible presumably...

you are right, I must have mixed up different articles, I guess the
trade-off depends on the situation, I've read about the faster instruction
fetch ie 2 / cycle, so that memory bandwidth is reduced, perhaps this also
influences the cache usage, but if you have frequent branches, then it is
less optimal ... 

Best,

Stefan