From patchwork Wed May 6 21:58:43 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dharmik Thakkar X-Patchwork-Id: 69885 Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 3A74FA034E; Wed, 6 May 2020 23:59:30 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id BF06A1DB33; Wed, 6 May 2020 23:59:29 +0200 (CEST) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by dpdk.org (Postfix) with ESMTP id BE4491DB2F for ; Wed, 6 May 2020 23:59:28 +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 266E1D6E; Wed, 6 May 2020 14:59:28 -0700 (PDT) Received: from dp6132.usa.Arm.com (dp6132.usa.arm.com [10.118.91.150]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 1D1DD3F305; Wed, 6 May 2020 14:59:28 -0700 (PDT) From: Dharmik Thakkar To: Wenzhuo Lu , Jingjing Wu , Bernard Iremonger Cc: dev@dpdk.org, nd@arm.com, Dharmik Thakkar Date: Wed, 6 May 2020 21:58:43 +0000 Message-Id: <20200506215847.7628-1-dharmik.thakkar@arm.com> X-Mailer: git-send-email 2.17.1 Subject: [dpdk-dev] [PATCH 1/5] app/testpmd: print clock with CPU cycles per pkt 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" On aarch64 platforms, the cycles are counted using either a low-resolution generic counter or a high-resolution PMU cycle counter. Print the clock frequency along with CPU cycles/packet to identify which cycle counter is being used. Signed-off-by: Dharmik Thakkar Reviewed-by: Honnappa Nagarahalli Reviewed-by: Phil Yang --- app/test-pmd/testpmd.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c index 99bacddbfdca..9a8cbbd6fc7c 100644 --- a/app/test-pmd/testpmd.c +++ b/app/test-pmd/testpmd.c @@ -1953,11 +1953,12 @@ fwd_stats_display(void) "%s\n", acc_stats_border, acc_stats_border); #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES +#define CYC_PER_MHZ 1E6 if (total_recv > 0) printf("\n CPU cycles/packet=%u (total cycles=" - "%"PRIu64" / total RX packets=%"PRIu64")\n", + "%"PRIu64" / total RX packets=%"PRIu64") at %lu MHz Clock\n", (unsigned int)(fwd_cycles / total_recv), - fwd_cycles, total_recv); + fwd_cycles, total_recv, (uint64_t)(rte_get_tsc_hz() / CYC_PER_MHZ)); #endif }