4 ms·
For virtual functions. Not all calls get an indirection. At least with any respectable compiler..
by fla 10y ago
For virtual functions. Not all calls get an indirection. At least with any respectable compiler..
- sedachv 10y agoRight, and how many game developers are recommending to "never use virtual functions because they are slow" in 2017? I remember seeing statements like that in Usenet posts and articles from the 1990s.
- anewhnaccount 10y agohttps://shaneenishry.com/blog/2014/12/27/misconceptions-of-component-based-entity-systems/ https://shaneenishry.com/blog/2014/12/27/misconceptions-of-c... is from 2014. I tend to think it might actually make a difference in this case given it's a vtable indirection for every entity every frame (or for every subsystem * every subsystem tick).
- Arelius 10y agoAlso, "never use virtual functions" is very different than "don't use virtual functions everywhere" Common wisdom is that virtual function usage in hot loops can become problematic.
- Arelius 10y agoAlso, "never use virtual functions" is very different than "don't use virtual functions everywhere" Common wisdom is that virtual function usage in hot loops can become problematic.