From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt0-f171.google.com (mail-qt0-f171.google.com [209.85.216.171]) by dpdk.org (Postfix) with ESMTP id B4F3D271 for ; Mon, 16 Jul 2018 10:11:03 +0200 (CEST) Received: by mail-qt0-f171.google.com with SMTP id f18-v6so32144181qtp.10 for ; Mon, 16 Jul 2018 01:11:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=mHMePBDMHiO71/oKOA7PBAMeN/pXLyRNN7hbw0uJ5bY=; b=Q80JkcTsz4w1/5jW2lYo7dZtANKO82/tr+MeX/3qL4eV1QtvO88Hc+UpCpC5obke1q cX3ZK6jQd01qL1Myqms8slZ0TlttlvgQeGvlu8R/OlIR+DkEntskQjutUkRoRtjp3XM6 PL8I3OAM13ZhAq8Tc1y+hZPhFBWG27LeeBfWvk33Vsw5wL07AMoIZ4ZOFd+HK8beI3wI HdFcuZHFU8ku2wJ/xS12vr/qRPjMyrqaEMfa6ocQl8K6P38EfLO4BU1QnE/urjR+XqCW kTMSRiwwYoO0+Gl3UaM5Gw+M9EbgqQ7WJjudn1HduvNpq3KN+GcArIpK6PP28pBAkyTl ofRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=mHMePBDMHiO71/oKOA7PBAMeN/pXLyRNN7hbw0uJ5bY=; b=nTFGHb+p9DereeiKVHx6bkDm8HWNrl1E31+wEZMwMynbSuhIN4XiW17+PsDKVk1MGL ocJE82yttzNdUysZ2RbNztY5i8thc2Jf435q2Uzk1J4M1ndewtHIaXNxDuRF0dihBtwZ PyUbt9oyVEjwGAKQj1mn0PDrYklvfYfgu0LS7wDkowv0OPMv2QClDkWmKfs6wMsu031n qhlCtVpDK8pxqfSHbhNp4rvKU81kyuAqF5ZzZE0KTJaNBAhvPZKcLKZBMzmz5lmTITTN oj41ov3dLujHTVE3hO1fgWrkd7/CquP4vl1Sje4YA7/N2bs+kbcymkjZij77D3b+tvXU Eh2Q== X-Gm-Message-State: AOUpUlFfb3ZOj/3OW7G/05pb2UiPL9m7lSErTc2hd7HvPl/syLhu73vg BPi8CLSPDOUvsAVd7eT0dNJC3/VQBZBLuKIsqglMbRGB X-Google-Smtp-Source: AAOMgpcZqnnKvzcocWPw+DOsukADmx9pJuhJa4l7w47xdmYOyll20/FCpRi7mZFzHmeEeiW8D4zWdJGuIrs3BNgaBRM= X-Received: by 2002:ac8:2485:: with SMTP id s5-v6mr14009919qts.350.1531728662902; Mon, 16 Jul 2018 01:11:02 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:ac8:2a47:0:0:0:0:0 with HTTP; Mon, 16 Jul 2018 01:11:02 -0700 (PDT) From: =?UTF-8?B?7J207KeA7IiY?= Date: Mon, 16 Jul 2018 17:11:02 +0900 Message-ID: To: users@dpdk.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-users] Problem profiling DPDK X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 16 Jul 2018 08:11:03 -0000 Hi, I have some issues with receiving 60bytes size packets without loss, so used perf tools to see what's happening. I built DPDK and application which I'm using (DPDK-pktgen) with proper options for debugging (-g, O0) and here is my perf report's result. # Children Self Command Shared Object Symbol 89.16% 0.00% lcore-slave-8 pktgen [.] eal_thread_loop 89.16% 0.00% lcore-slave-8 pktgen [.] pktgen_launch_one_lcore 89.09% 0.66% lcore-slave-8 pktgen [.] pktgen_main_rxtx_loop 86.86% 2.43% lcore-slave-8 pktgen [.] pktgen_main_receive 47.08% 34.92% lcore-slave-8 pktgen [.] rte_pktmbuf_free 33.78% 5.77% lcore-slave-8 pktgen [.] pktgen_packet_classify_bulk 23.29% 11.15% lcore-slave-8 pktgen [.] pktgen_packet_classify 10.93% 10.89% lcore-slave-8 pktgen [.] i40e_recv_pkts_vec 10.84% 0.00% lcore-slave-8 [unknown] [.] 0x00303a3420205852 10.83% 0.00% lcore-slave-8 [unknown] [.] 0x00007f877d914680 10.52% 10.49% lcore-slave-8 pktgen [.] pktgen_packet_type 7.35% 3.05% lcore-slave-8 pktgen [.] rte_mbuf_refcnt_read 4.36% 4.35% lcore-slave-8 pktgen [.] rte_atomic16_read 4.35% 4.34% lcore-slave-8 pktgen [.] rte_prefetch0 3.32% 3.31% lcore-slave-8 pktgen [.] rte_memcpy_generic I could see many readable symbols but there are two unknown symbols taking 10% at Children column. Does anyone have ideas what these symbols are? Thanks in advance. Regards, Jeesoo Lee