With eth affinity
/proc/net/pktgen/eth0@0:  312218pps 149Mb/sec (149864640bps) errors: 0
/proc/net/pktgen/eth1@1:  1737567pps 834Mb/sec (834032160bps) errors: 0
/proc/net/pktgen/eth2@2:  1737571pps 834Mb/sec (834034080bps) errors: 0
/proc/net/pktgen/eth3@3:  1737850pps 834Mb/sec (834168000bps) errors: 0
/proc/net/pktgen/eth4@4:  1462878pps 702Mb/sec (702181440bps) errors: 0
/proc/net/pktgen/eth5@5:  1462797pps 702Mb/sec (702142560bps) errors: 0
/proc/net/pktgen/eth6@6:  1731849pps 831Mb/sec (831287520bps) errors: 0
/proc/net/pktgen/eth7@7:  1734079pps 832Mb/sec (832357920bps) errors: 0

Without eth affinity

/proc/net/pktgen/eth0@0:  2138358pps 1026Mb/sec (1026411840bps) errors: 0
/proc/net/pktgen/eth1@1:  2258387pps 1084Mb/sec (1084025760bps) errors: 0
/proc/net/pktgen/eth2@2:  2266285pps 1087Mb/sec (1087816800bps) errors: 0
/proc/net/pktgen/eth3@3:  1900688pps 912Mb/sec (912330240bps) errors: 0
/proc/net/pktgen/eth4@4:  1276989pps 612Mb/sec (612954720bps) errors: 0
/proc/net/pktgen/eth5@5:  1437274pps 689Mb/sec (689891520bps) errors: 0
/proc/net/pktgen/eth6@6:  665535pps 319Mb/sec (319456800bps) errors: 0
/proc/net/pktgen/eth7@7:  1386317pps 665Mb/sec (665432160bps) errors: 0

With eth affinity

/proc/net/pktgen/eth0@0:  2771pps 1Mb/sec (1330080bps) errors: 0
/proc/net/pktgen/eth1@1:  1694513pps 813Mb/sec (813366240bps) errors: 0
/proc/net/pktgen/eth2@2:  1694543pps 813Mb/sec (813380640bps) errors: 0
/proc/net/pktgen/eth3@3:  1701498pps 816Mb/sec (816719040bps) errors: 0
/proc/net/pktgen/eth4@4:  1458152pps 699Mb/sec (699912960bps) errors: 0
/proc/net/pktgen/eth5@5:  1459098pps 700Mb/sec (700367040bps) errors: 0
/proc/net/pktgen/eth6@6:  1687307pps 809Mb/sec (809907360bps) errors: 0
/proc/net/pktgen/eth7@7:  1690365pps 811Mb/sec (811375200bps) errors: 0