On Thu, Jun 16, 2016 at 12:19:05PM -0700, Nelson Escobar wrote: > For performance reasons, this patch uses 2 VIC RQs per RQ presented to > DPDK. > > The VIC requires that each descriptor be marked as either a start of > packet (SOP) descriptor or a non-SOP descriptor. A one RQ solution > requires skipping descriptors when receiving small packets and results > in bad performance when receiving many small packets. > > The 2 RQ solution makes use of the VIC feature that allows a receive > on primary queue to 'spill over' into another queue if the receive is > too large to fit in the buffer assigned to the descriptor on the > primary queue. This means that there is no skipping of descriptors > when receiving small packets and results in much better performance. > > Signed-off-by: Nelson Escobar <neescoba at cisco.com> > Reviewed-by: John Daley <johndale at cisco.com> > --- > Applied to dpdk-next-net/rel_16_07
/Bruce
