[sldev] Question on Overuse of virtual in C++

[Dirk Moerenhout]

> On the design side however, unless you are dealing with
> extremely performance sensitive code, if in doubt, it's
> usually a good idea to make functions virtual and not need
> it than the other way round.

Well we're dealing with performance sensitive code as it's one of the
top functions (when using an optimised viewer) even though it has only
4 instructions (including RET ...). I get upto 2% of the cycle samples
in those 4 instructions and that doesn't take into account all the
wasted cycles on additional instructions that are needed to do the
call.

Dirk aka Blakar Ogre