From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xueming Li Subject: [PATCH] app/testpmd: distribute queues to cores Date: Sat, 26 May 2018 23:15:20 +0800 Message-ID: <20180526151520.8579-1-xuemingl@mellanox.com> Cc: Xueming Li , dev@dpdk.org, Shahaf Shuler To: Wenzhuo Lu , Jingjing Wu , Bernard Iremonger Return-path: Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id F04EC23A for ; Sat, 26 May 2018 17:25:50 +0200 (CEST) List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Current topology distribute forwarding streams to lcores by port, this make unbalanced loading when port number larger than 2: lcore 0: P0Q0->P1Q0, P0Q1->P1Q1 locre 1: P1Q0->P0Q0, P1Q1->P0Q1 If only one port has traffic, only one locre get fully loaded and the other one get no forwarding. Performance is bad as only one core doing forwarding in such case. This patch distributes forwarding streams by queue, try to get streams of each port handled by different lcore: lcore 0: P0Q0->P1Q0, P1Q0->P1Q0 locre 1: P0Q1->P0Q1, P1Q1->P0Q1 Signed-off-by: Xueming Li --- app/test-pmd/config.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c index 97020fb3d..45b4d4f45 100644 --- a/app/test-pmd/config.c +++ b/app/test-pmd/config.c @@ -2177,15 +2177,11 @@ rss_fwd_config_setup(void) fs->tx_queue = rxq; fs->peer_addr = fs->tx_port; fs->retry_enabled = retry_enabled; - rxq = (queueid_t) (rxq + 1); - if (rxq < nb_q) - continue; - /* - * rxq == nb_q - * Restart from RX queue 0 on next RX port - */ - rxq = 0; rxp++; + if (rxp < nb_fwd_ports) + continue; + rxp = 0; + rxq++; } } -- 2.13.3