From 1614130d60abfaa89a41ba8eed5f9bbf41d9a4f4 Mon Sep 17 00:00:00 2001 From: Xavier Simonart Date: Sun, 10 May 2020 21:04:08 +0200 Subject: Improve performance in l3 submode Two cases where performance has been improved - When using a gateway from a routing table (l3 submode), store the mac within the next hop table, to avoid a hash_lookup. This gives ~10% improvement. - Read tsc only once per bulk (of up to 64 packets). This gives ~10% improvement to swap, 4% to gen. In addition a small fix has been added, preventig "No route" Error to be written too aften. Change-Id: I8a7ab74a32f09c8ff47f751ee91e84afee1b2147 Signed-off-by: Xavier Simonart --- VNFs/DPPD-PROX/tx_pkt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'VNFs/DPPD-PROX/tx_pkt.c') diff --git a/VNFs/DPPD-PROX/tx_pkt.c b/VNFs/DPPD-PROX/tx_pkt.c index 2a4f53b2..51c1afa7 100644 --- a/VNFs/DPPD-PROX/tx_pkt.c +++ b/VNFs/DPPD-PROX/tx_pkt.c @@ -57,11 +57,12 @@ int tx_pkt_l3(struct task_base *tbase, struct rte_mbuf **mbufs, uint16_t n_pkts, const struct port_queue *port_queue = &tbase->tx_params_hw.tx_port_queue[0]; struct rte_mbuf *arp_mbuf = NULL; // used when one need to send both an ARP and a mbuf uint64_t *time; + uint64_t tsc = rte_rdtsc(); for (int j = 0; j < n_pkts; j++) { if ((out) && (out[j] >= OUT_HANDLED)) continue; - if (unlikely((rc = write_dst_mac(tbase, mbufs[j], &ip_dst, &time)) != SEND_MBUF)) { + if (unlikely((rc = write_dst_mac(tbase, mbufs[j], &ip_dst, &time, tsc)) != SEND_MBUF)) { if (j - first) { ret = tbase->aux->tx_pkt_l2(tbase, mbufs + first, j - first, out); ok += ret; -- cgit 1.2.3-korg