> ... TTCP from NetBSD-current i386 ex0 to ep93xx epe0 iface

ipflow_fastforward() rathole eliminates ipintr() code path.  This
means no netisr() is scheduled to route IP datagram.  On the
other hand, end node communcation is always subject to IP layer
processing.  TCP/UDP layer processing adds CPU weights
more.  So, it would be better not to compare routing performance
and end node communication capacity.

Toru Nishimura/ALKYL Technology, NetBSD helps industries