> Just a 'note that', in the linux arm port emailist there has been an off and on
> discussion about lower performance when using ELF format, vs a.out. Has
> anyone run some benchmarks on ELF vs a.out under NetBSD?
> 
> I'll get a pointer to the performance numbers, and that will indicate what
> sort of activity seemed to cause a performance hit.

I can't see why an ELF executable would be any slower than an a.out.  
While ELF has many sections this only affects linking; both only have 
three basic segments in an executable: text, data and zero-initialized.  
So there's no real reason why one should be more efficient that the other.

R.