> > To manage QoS the question is who knows about all the traffic traversing a > specific adapter. For most kernel traversing protocols (IP, iSER, iSCSI, > etc) you can sometimes do this in the device driver, where you can examine > the headers as a packet is expedited and manage it there. Unfortunately > you > are adding processing in the driver which can end up impacting bandwidth > on > high speed adapters. You also introduce additional overhead hence higher > CPU utilization.
Right. You do not want to do this in SW. Most IB HCA adapters can do this for you at wire speed with absolutely no toll on host CPU utilization. _______________________________________________ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
