From 4c3cd4c294f883a5cf6d75425351b855d5f4be05 Mon Sep 17 00:00:00 2001 From: Julien Meunier Date: Wed, 20 Feb 2019 23:06:08 +0200 Subject: [PATCH] test/pmd_perf: fix the way to drain the port If the port has received less than ``pkt_per_port`` packets (for example, the port has missed some packets), the test is in an infinite loop. Instead of expecting a number of packet to receive, let the port to be drained by itself. If no more packets are received, the test can continue. Fixes: 002ade70e933 ("app/test: measure cycles per packet in Rx/Tx") Cc: stable@dpdk.org Signed-off-by: Julien Meunier Reviewed-by: Ferruh Yigit --- test/test/test_pmd_perf.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/test/test/test_pmd_perf.c b/test/test/test_pmd_perf.c index f5095c87d1..ed8524a176 100644 --- a/test/test/test_pmd_perf.c +++ b/test/test/test_pmd_perf.c @@ -493,16 +493,21 @@ main_loop(__rte_unused void *args) for (i = 0; i < conf->nb_ports; i++) { portid = conf->portlist[i]; - int nb_free = pkt_per_port; + int nb_free = 0; + uint64_t timeout = 10000; do { /* dry out */ nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst, MAX_PKT_BURST); nb_tx = 0; while (nb_tx < nb_rx) rte_pktmbuf_free(pkts_burst[nb_tx++]); - nb_free -= nb_rx; - } while (nb_free != 0); - printf("free %d mbuf left in port %u\n", pkt_per_port, portid); + nb_free += nb_rx; + + if (unlikely(nb_rx == 0)) + timeout--; + } while (nb_free != pkt_per_port && timeout != 0); + printf("free %d (expected %d) mbuf left in port %u\n", nb_free, + pkt_per_port, portid); } if (count == 0) -- 2.20.1