Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755592AbcCXOKg (ORCPT ); Thu, 24 Mar 2016 10:10:36 -0400 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:47621 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751927AbcCXOK0 (ORCPT ); Thu, 24 Mar 2016 10:10:26 -0400 Subject: Re: [PATCH] mmc: Provide tracepoints for request processing To: Baolin Wang , , , References: <05d6338bddae751c1755e7825d4179658e78cc71.1458819912.git.baolin.wang@linaro.org> CC: , , , , , , , , , , , , , , , , , , , , From: Jens Axboe Message-ID: <56F3F4F5.8050200@fb.com> Date: Thu, 24 Mar 2016 08:08:53 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 In-Reply-To: <05d6338bddae751c1755e7825d4179658e78cc71.1458819912.git.baolin.wang@linaro.org> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.54.13] X-Proofpoint-Spam-Reason: safe X-FB-Internal: Safe X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2016-03-24_05:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 305 Lines: 10 On 03/24/2016 05:54 AM, Baolin Wang wrote: > This patch provides some tracepoints for the lifecycle of a request from > fetching to completion to help with performance analysis of MMC subsystem. Most of these already exist as block layer trace points, why do we need mmc specific ones? -- Jens Axboe