Firewall Profiling.

[Adrian Chadd]

On 27 December 2011 22:32, Juli Mallett <jmallett at freebsd.org> wrote:

> Reloading of mbufs into DMA descriptors?  mbuf allocator overhead
> itself?  Interrupts.  Context switches under constant heavy load.
> Some indirection in the network stack.

Keeping caches primed? Not doing lots of very-deep-stack stuff for
each packet, which is the bane of all current kernel-space UNIX
implementations of frame forwarding? :)


Adrian