On Tue, 15 Jul 2003, Ben Greear wrote: > Dan Hollis wrote: > > On Tue, 15 Jul 2003, Ben Greear wrote: > >>I'd consider ignoring the HW accel unless you can prove it actually helps > >>performance to a noticeable degree. I have never seen results of any benchmarking > >>related to this... > > For gigabit ethernet, it makes a *H*U*G*E* difference. > I'm curious to see numbers. The VLAN shim is only inserting > a small shim header, at at most shifting the first part of the packet > when sent a pre-built packet. > Maybe the hw-accel turns on tcp checksumming or something too?? That is exactly what it does. hw tcp checksumming helps a LOT at gbe rates -Dan -- [-] Omae no subete no kichi wa ore no mono da. [-] - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html