From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt0-f172.google.com (mail-qt0-f172.google.com [209.85.216.172]) by dpdk.org (Postfix) with ESMTP id 1BF1716E for ; Tue, 17 Jul 2018 05:26:25 +0200 (CEST) Received: by mail-qt0-f172.google.com with SMTP id y19-v6so6310395qto.5 for ; Mon, 16 Jul 2018 20:26:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=BhCdILapNFr0E8MUIcG+JVFwTRehu3ciij+n2wjeQaI=; b=gxNy6ChDjOg1YpR41+sXIjeTEdR3BjHsh9jCwLEcNt8Ue1jOKHY48C9wu81b7md+nZ pQZYAp6QzLIHTHGQx86++ExnKXZgTxaXyl1VKVdgpRnlFlMEskCyXR6S/1Ty4xATiqFe WPV+t/1nrY7SDPeZPjYGSbPfdR9/NDpRMVl+b94wRlbswqOKKM3zJyqVs87hqhEOZlaK AhlVg+LaWbDINOZ6Z+5iqQwNTR8UmmII6n3GTLjFRLpichMrkA+KwP7NQftLbtVaoy2x 6Jqeg9wvewE9PVkFc1LOXXMNsM61K26vINBOreutwhaM4HiiK1WuWQD0M4gvLtp5cmrc rwrQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=BhCdILapNFr0E8MUIcG+JVFwTRehu3ciij+n2wjeQaI=; b=mj37XnuduhNbPA4P+JjKzl4KC3EU69aJKW61qbK8KzZjjlN/yfB4PPMStntMN9FrKR 1LvGQ33pHsl35hwtY9nZoeSE1/nOHNtUG+0ABX8EjjI9MTJwoRYWNEHIkWGzWuPCPHSh BSM0UcoL+M/dFYbnEDAWI2n/eyxxt2F6INGd8lC0pR+NQl10bj5ER6MNCdMXEz9tdSOw /XeXKDqvAYJVALw+sVFqBCIDP+II51mvpdIoVzH4M/y8MoFNGo/gEPdr3OrhbJdwm7Ha 05udofia763oxkJjy2Mq6plUpMEsJ7IARlCSKCW0PZ5cM026rW7omiVNluvp1H4a4t4C 1NCA== X-Gm-Message-State: AOUpUlEejXzA8xZ3UepdqXSjKp3ugPmrccV3DeToeF8+L9ZMmbyofqXQ 5zhlkZ98u8b71Ov9ZgNJieNLNxNRKqn53keQbB4= X-Google-Smtp-Source: AAOMgpd0eB295oMwZusGQM4+g9cAtsI/pnBUMwRjR3meO43nEtKA4RTBOZtaxfTP8Qo8lgpQ3Dcdp56J5o/bDxr52Fk= X-Received: by 2002:a0c:dd07:: with SMTP id u7-v6mr21012918qvk.17.1531797984560; Mon, 16 Jul 2018 20:26:24 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:ac8:2a47:0:0:0:0:0 with HTTP; Mon, 16 Jul 2018 20:26:24 -0700 (PDT) In-Reply-To: References: From: =?UTF-8?B?7J207KeA7IiY?= Date: Tue, 17 Jul 2018 12:26:24 +0900 Message-ID: To: "Wiles, Keith" Cc: "users@dpdk.org" Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: Re: [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: Tue, 17 Jul 2018 03:26:25 -0000 Ok, I compiled DPDK properly but didn't install it with 'make install T=3D$RTE_TARGET' command and I think that was the problem. Now I can see all symbols in the perf report. Thanks. Regards, Jeesoo Lee 2018-07-17 0:47 GMT+09:00 Wiles, Keith : > > > Sent from my iPhone > > > On Jul 16, 2018, at 1:11 AM, =EC=9D=B4=EC=A7=80=EC=88=98 wrote: > > > > 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_prefetch= 0 > > 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. > > > These could be the calls to rte_manage_timer() as not much else is going > on here for the code point of view. > > Notice the application is unknown and not pktgen so could be something in > Linux. You can try vtune. > > > > Does anyone have ideas what these symbols are? > > > > Thanks in advance. > > > > Regards, > > > > Jeesoo Lee >