🚀 go-pugleaf

> >                        ...you get inheritance and even late binding
> > of sorts with high efficiency (about 100 microSecs for a typical
> > invocation of a method).

In article <6174@alice.uUCp>, bs@alice.UucP (Bjarne Stroustrup) writes:
> This made me curious about what the cost of a C++ virtual function call
> really is so I ran this example on a VAX11/750:
> 
> 	for (int i = 100000; 0<i; i--) p->f();
> 
> It took 4 seconds; that is, about 4 microseconds per iteration.

Uh, if you run a loop 100,000 times in 4 seconds, that is *40* microseconds
per iteration, which sounds a lot more reasonable on a 750.  Remember that
this time includes the loop overhead, a function call, and a function return,
and Vaxes are slow about function calls.

Scale all the other "per iteration" numbers by a factor of 10 too.
-- 
John Gilmore  {sun,ptsfa,lll-crg,ihnp4}!hoptoad!gnu   jgilmore@lll-crg.arpa
(C) Copyright 1986 by John Gilmore.             May the Source be with you!