On Mon, 20 Feb 2023 12:44:06 -0800 Bili Dong <qobilidop at gmail.com> wrote: > Hi Cristian, > > I agree the 64-bit version could enable better performance, and I will do > it in the next version. > Same optimizations as ipv4 checksum probably apply. Aligning data, and duffs device, etc. You might even be able to use vector instructions