> -----Original Message----- > From: Kathleen Capella <[email protected]> > Sent: Friday, March 25, 2022 6:12 AM > To: Wu, Jingjing <[email protected]>; Xing, Beilei <[email protected]> > Cc: [email protected]; [email protected]; [email protected]; > [email protected]; Kathleen Capella <[email protected]> > Subject: [PATCH] net/iavf: remove extra copy step in Rx bulk path > > In the Rx bulk path, packets which are taken from the HW ring, are first > copied to the stage data structure and then later copied from the stage to the > rx_pkts array. For the number of packets requested immediately by the > receiving function, this two-step process adds extra overhead that is not > necessary. > > Instead, put requested number of packets directly into the rx_pkts array and > only stage excess packets. On N1SDP with 1 core/port, l3fwd saw up to 4% > performance improvement. On x86, no difference in performance was > observed. > > Signed-off-by: Kathleen Capella <[email protected]> > Suggested-by: Dharmik Thakkar <[email protected]> Acked-by: Qi Zhang <[email protected]> Applied to dpdk-next-net-intel. Thanks Qi
