From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 56EBBA00C5; Tue, 7 Jul 2020 01:32:59 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 89AEF1DC8B; Tue, 7 Jul 2020 01:32:47 +0200 (CEST) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by dpdk.org (Postfix) with ESMTP id 09D801DC93 for ; Tue, 7 Jul 2020 01:32:46 +0200 (CEST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7D20BC0A; Mon, 6 Jul 2020 16:32:45 -0700 (PDT) Received: from qc2400f-1.austin.arm.com (qc2400f-1.austin.arm.com [10.118.12.27]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 669323F718; Mon, 6 Jul 2020 16:32:45 -0700 (PDT) From: Honnappa Nagarahalli To: dev@dpdk.org, honnappa.nagarahalli@arm.com, alialnu@mellanox.com, orgerlitz@mellanox.com, wenzhuo.lu@intel.com, beilei.xing@intel.com, bernard.iremonger@intel.com, ferruh.yigit@intel.com Cc: hemant.agrawal@nxp.com, jerinj@marvell.com, viacheslavo@mellanox.com, thomas@monjalon.net, ruifeng.wang@arm.com, phil.yang@arm.com, nd@arm.com Date: Mon, 6 Jul 2020 18:32:31 -0500 Message-Id: <20200706233231.25881-3-honnappa.nagarahalli@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200706233231.25881-1-honnappa.nagarahalli@arm.com> References: <20200617144307.9961-1-honnappa.nagarahalli@arm.com> <20200706233231.25881-1-honnappa.nagarahalli@arm.com> Subject: [dpdk-dev] [PATCH v3 3/3] app/testpmd: enable empty polls in burst stats X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" The number of empty polls provides information about available CPU head room in the presence of continuous polling. Signed-off-by: Honnappa Nagarahalli Reviewed-by: Phil Yang Reviewed-by: Ruifeng Wang Reviewed-by: Ferruh Yigit Tested-by: Phil Yang Tested-by: Ali Alnubani --- app/test-pmd/csumonly.c | 5 +-- app/test-pmd/icmpecho.c | 6 ++-- app/test-pmd/iofwd.c | 6 ++-- app/test-pmd/macfwd.c | 6 ++-- app/test-pmd/macswap.c | 6 ++-- app/test-pmd/rxonly.c | 6 ++-- app/test-pmd/testpmd.c | 77 +++++++++++++++++++++++------------------ 7 files changed, 62 insertions(+), 50 deletions(-) diff --git a/app/test-pmd/csumonly.c b/app/test-pmd/csumonly.c index 862622379..0a96b24eb 100644 --- a/app/test-pmd/csumonly.c +++ b/app/test-pmd/csumonly.c @@ -802,11 +802,12 @@ pkt_burst_checksum_forward(struct fwd_stream *fs) /* receive a burst of packet */ nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst, nb_pkt_per_burst); - if (unlikely(nb_rx == 0)) - return; #ifdef RTE_TEST_PMD_RECORD_BURST_STATS fs->rx_burst_stats.pkt_burst_spread[nb_rx]++; #endif + if (unlikely(nb_rx == 0)) + return; + fs->rx_packets += nb_rx; rx_bad_ip_csum = 0; rx_bad_l4_csum = 0; diff --git a/app/test-pmd/icmpecho.c b/app/test-pmd/icmpecho.c index 65aece16c..78e3adf2c 100644 --- a/app/test-pmd/icmpecho.c +++ b/app/test-pmd/icmpecho.c @@ -308,12 +308,12 @@ reply_to_icmp_echo_rqsts(struct fwd_stream *fs) */ nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst, nb_pkt_per_burst); - if (unlikely(nb_rx == 0)) - return; - #ifdef RTE_TEST_PMD_RECORD_BURST_STATS fs->rx_burst_stats.pkt_burst_spread[nb_rx]++; #endif + if (unlikely(nb_rx == 0)) + return; + fs->rx_packets += nb_rx; nb_replies = 0; for (i = 0; i < nb_rx; i++) { diff --git a/app/test-pmd/iofwd.c b/app/test-pmd/iofwd.c index 9dce76efe..22b59bbda 100644 --- a/app/test-pmd/iofwd.c +++ b/app/test-pmd/iofwd.c @@ -66,13 +66,13 @@ pkt_burst_io_forward(struct fwd_stream *fs) */ nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst, nb_pkt_per_burst); +#ifdef RTE_TEST_PMD_RECORD_BURST_STATS + fs->rx_burst_stats.pkt_burst_spread[nb_rx]++; +#endif if (unlikely(nb_rx == 0)) return; fs->rx_packets += nb_rx; -#ifdef RTE_TEST_PMD_RECORD_BURST_STATS - fs->rx_burst_stats.pkt_burst_spread[nb_rx]++; -#endif nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_rx); /* diff --git a/app/test-pmd/macfwd.c b/app/test-pmd/macfwd.c index d2ebb1105..0a89d94be 100644 --- a/app/test-pmd/macfwd.c +++ b/app/test-pmd/macfwd.c @@ -71,12 +71,12 @@ pkt_burst_mac_forward(struct fwd_stream *fs) */ nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst, nb_pkt_per_burst); - if (unlikely(nb_rx == 0)) - return; - #ifdef RTE_TEST_PMD_RECORD_BURST_STATS fs->rx_burst_stats.pkt_burst_spread[nb_rx]++; #endif + if (unlikely(nb_rx == 0)) + return; + fs->rx_packets += nb_rx; txp = &ports[fs->tx_port]; tx_offloads = txp->dev_conf.txmode.offloads; diff --git a/app/test-pmd/macswap.c b/app/test-pmd/macswap.c index 8428c26d8..fbe8cb39e 100644 --- a/app/test-pmd/macswap.c +++ b/app/test-pmd/macswap.c @@ -72,12 +72,12 @@ pkt_burst_mac_swap(struct fwd_stream *fs) */ nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst, nb_pkt_per_burst); - if (unlikely(nb_rx == 0)) - return; - #ifdef RTE_TEST_PMD_RECORD_BURST_STATS fs->rx_burst_stats.pkt_burst_spread[nb_rx]++; #endif + if (unlikely(nb_rx == 0)) + return; + fs->rx_packets += nb_rx; txp = &ports[fs->tx_port]; diff --git a/app/test-pmd/rxonly.c b/app/test-pmd/rxonly.c index 5c65fc42d..18d59a68d 100644 --- a/app/test-pmd/rxonly.c +++ b/app/test-pmd/rxonly.c @@ -63,12 +63,12 @@ pkt_burst_receive(struct fwd_stream *fs) */ nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst, nb_pkt_per_burst); - if (unlikely(nb_rx == 0)) - return; - #ifdef RTE_TEST_PMD_RECORD_BURST_STATS fs->rx_burst_stats.pkt_burst_spread[nb_rx]++; #endif + if (unlikely(nb_rx == 0)) + return; + fs->rx_packets += nb_rx; for (i = 0; i < nb_rx; i++) rte_pktmbuf_free(pkts_burst[i]); diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c index 2e1493da2..dc93fd5d2 100644 --- a/app/test-pmd/testpmd.c +++ b/app/test-pmd/testpmd.c @@ -1692,57 +1692,68 @@ init_fwd_streams(void) static void pkt_burst_stats_display(const char *rx_tx, struct pkt_burst_stats *pbs) { - uint64_t total_burst; + uint64_t total_burst, sburst; uint64_t nb_burst; - uint64_t burst_stats[3]; - uint16_t pktnb_stats[3]; + uint64_t burst_stats[4]; + uint16_t pktnb_stats[4]; uint16_t nb_pkt; - int burst_percent[3]; + int burst_percent[4], sburstp; + int i; /* * First compute the total number of packet bursts and the * two highest numbers of bursts of the same number of packets. */ - total_burst = 0; - burst_stats[0] = burst_stats[1] = burst_stats[2] = 0; - pktnb_stats[0] = pktnb_stats[1] = pktnb_stats[2] = 0; - for (nb_pkt = 0; nb_pkt < MAX_PKT_BURST; nb_pkt++) { + memset(&burst_stats, 0x0, sizeof(burst_stats)); + memset(&pktnb_stats, 0x0, sizeof(pktnb_stats)); + + /* Show stats for 0 burst size always */ + total_burst = pbs->pkt_burst_spread[0]; + burst_stats[0] = pbs->pkt_burst_spread[0]; + pktnb_stats[0] = 0; + + /* Find the next 2 burst sizes with highest occurances. */ + for (nb_pkt = 1; nb_pkt < MAX_PKT_BURST; nb_pkt++) { nb_burst = pbs->pkt_burst_spread[nb_pkt]; + if (nb_burst == 0) continue; + total_burst += nb_burst; - if (nb_burst > burst_stats[0]) { - burst_stats[1] = burst_stats[0]; - pktnb_stats[1] = pktnb_stats[0]; - burst_stats[0] = nb_burst; - pktnb_stats[0] = nb_pkt; - } else if (nb_burst > burst_stats[1]) { + + if (nb_burst > burst_stats[1]) { + burst_stats[2] = burst_stats[1]; + pktnb_stats[2] = pktnb_stats[1]; burst_stats[1] = nb_burst; pktnb_stats[1] = nb_pkt; + } else if (nb_burst > burst_stats[2]) { + burst_stats[2] = nb_burst; + pktnb_stats[2] = nb_pkt; } } if (total_burst == 0) return; - burst_percent[0] = (double)burst_stats[0] / total_burst * 100; - printf(" %s-bursts : %"PRIu64" [%d%% of %d pkts", rx_tx, total_burst, - burst_percent[0], (int) pktnb_stats[0]); - if (burst_stats[0] == total_burst) { - printf("]\n"); - return; - } - if (burst_stats[0] + burst_stats[1] == total_burst) { - printf(" + %d%% of %d pkts]\n", - 100 - burst_percent[0], pktnb_stats[1]); - return; - } - burst_percent[1] = (double)burst_stats[1] / total_burst * 100; - burst_percent[2] = 100 - (burst_percent[0] + burst_percent[1]); - if ((burst_percent[1] == 0) || (burst_percent[2] == 0)) { - printf(" + %d%% of others]\n", 100 - burst_percent[0]); - return; + + printf(" %s-bursts : %"PRIu64" [", rx_tx, total_burst); + for (i = 0, sburst = 0, sburstp = 0; i < 4; i++) { + if (i == 3) { + printf("%d%% of other]\n", 100 - sburstp); + return; + } + + sburst += burst_stats[i]; + if (sburst == total_burst) { + printf("%d%% of %d pkts]\n", + 100 - sburstp, (int) pktnb_stats[i]); + return; + } + + burst_percent[i] = + (double)burst_stats[i] / total_burst * 100; + printf("%d%% of %d pkts + ", + burst_percent[i], (int) pktnb_stats[i]); + sburstp += burst_percent[i]; } - printf(" + %d%% of %d pkts + %d%% of others]\n", - burst_percent[1], (int) pktnb_stats[1], burst_percent[2]); } #endif /* RTE_TEST_PMD_RECORD_BURST_STATS */ -- 2.17.1