From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f48.google.com (mail-wm0-f48.google.com [74.125.82.48]) by dpdk.org (Postfix) with ESMTP id E32186936 for ; Tue, 4 Oct 2016 14:40:50 +0200 (CEST) Received: by mail-wm0-f48.google.com with SMTP id f193so24756933wmg.0 for ; Tue, 04 Oct 2016 05:40:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=6wind-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:user-agent:in-reply-to :references:mime-version:content-transfer-encoding; bh=go/8iEar1Q20k37SHeCHOwpjEDNPlLhwY6ij3Hr7yqc=; b=ORjo9tfYBK/qx75x8w28AJbXR4QPiObNSucPlEv3ENtKmCn/E2W9gaVPzUfdV9B0Te 9qNDkGbZHE6G4Eh+O1BLMlYLCmAODlaFE8UPCt+igvFX+zNSFTXLOgDseZJS7GCGGNQl bKummSU3Lh4GXuFdKFXaDM0Qo8pGNAO/hIdQEF7/5neNqNDc5xeETrB21uSRsIR3Q/T7 xE3gZrkSjDgy4hzmBNYiJK6e3ku+J5621gEjZJlWbJCQ+fVZItilvLj7L4118OoBu2qy wwMq6CswpOIVDb/0iaSFoQf6MjYKR/Q+DW7vV9IspHHVQ4Qex26NEF/6ZB55VypifcEN cuGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:user-agent :in-reply-to:references:mime-version:content-transfer-encoding; bh=go/8iEar1Q20k37SHeCHOwpjEDNPlLhwY6ij3Hr7yqc=; b=b/87tKBPEraxl8tWzbYcjkOVkFV7l7XVLsy7Q2Cduc2tvj9skwOKjBHPMyyzjZBilo STuN4oZ/Ukf3xovUO8sjNkoOFv2hor9lpwcKAzfKGfHUxAn8B+j0QGmKZKNwIW94aMvI gXVF+Fcq/18SX4ZVCod/YhArDXrbyd3emVwBf23b8yIubM6qlJR3elvDef9yXL2KPmti F3ZGDcMFfqrhRJfwn9cOyvXqLNFxFciPKXbRZSBpFRswfp9bX5jPmG7XSbirXEsMEH7o TU6vCL7w2Cq5LVWDGx4vFgCn0MNTtzz3WCx7VEqG4XNdb9XiovuuNoPVaukqkf7n6+Uv ZV/A== X-Gm-Message-State: AA6/9RmItETSR95BmoFuNNqVsO80q5RAhLRBpzftie+MWIMqb8GvZcynOw/FPcapiny6Ib3U X-Received: by 10.194.126.133 with SMTP id my5mr3581763wjb.47.1475584850710; Tue, 04 Oct 2016 05:40:50 -0700 (PDT) Received: from xps13.localnet (guy78-3-82-239-227-177.fbx.proxad.net. [82.239.227.177]) by smtp.gmail.com with ESMTPSA id lz5sm3356801wjb.24.2016.10.04.05.40.49 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 04 Oct 2016 05:40:49 -0700 (PDT) From: Thomas Monjalon To: Jerin Jacob Cc: dev@dpdk.org, jianbo.liu@linaro.org, viktorin@rehivetech.com Date: Tue, 04 Oct 2016 14:40:47 +0200 Message-ID: <1570506.0gxVEm9dQ5@xps13> User-Agent: KMail/4.14.10 (Linux/4.5.4-1-ARCH; KDE/4.14.11; x86_64; ; ) In-Reply-To: <1475577630-14318-1-git-send-email-jerin.jacob@caviumnetworks.com> References: <1475577630-14318-1-git-send-email-jerin.jacob@caviumnetworks.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Subject: Re: [dpdk-dev] [PATCH] doc: arm64: document DPDK application profiling methods X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Oct 2016 12:40:51 -0000 Thanks for providing a patch so quickly :) 2016-10-04 16:10, Jerin Jacob: > +The PMU based scheme useful for high accuracy performance profiling. A verb is missing. > +Find below the example steps to configure the PMU based cycle counter on an > +armv8 machine. > + > +.. code-block:: console > + > + git clone https://github.com/jerinjacobk/armv8_pmu_cycle_counter_el0 > + cd armv8_pmu_cycle_counter_el0 > + make > + sudo insmod pmu_el0_cycle_counter.ko > + cd $DPDK_DIR > + make config T=arm64-armv8a-linuxapp-gcc > + echo "CONFIG_RTE_ARM_EAL_RDTSC_USE_PMU=y" >> build/.config > + make What about the ARM 32 code that Jan is using? > +.. warning:: > + > + This method can not be used in production systems as this may alter PMU > + state used by standard Linux user space tool like perf. More details please?