Received: by 10.223.176.5 with SMTP id f5csp2449861wra; Mon, 5 Feb 2018 04:23:57 -0800 (PST) X-Google-Smtp-Source: AH8x224u6BAE4QXoK5BrbQTwjk+er0kr0K+qlMsGzfDGk96Y9lsbWzRwSKEewWjwwhdrEvQC/EsX X-Received: by 2002:a17:902:20cb:: with SMTP id v11-v6mr43761268plg.63.1517833437343; Mon, 05 Feb 2018 04:23:57 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1517833437; cv=none; d=google.com; s=arc-20160816; b=zn5Fmr8j4IcLSOIyObBf5vHrSMGAvX/8oNFNAlm06k/OgwJOKJgqafWXKatCxaeDUc yshyaoBA2ovcflMxNbBj85UAJO7hJvmi/wyuQOe9FWXPJVk1ibst1lt2TgY1DA+LO3FP N5FlZ8yuzZvMm8K48WTVkotIij8m571ZY6gIE69piJHjdRHvYGurDYhVloUo4dM1Ojn1 Zd4bQcFYNuclIu7PWf43drV/dlce+GcT4ENSPAPyIEkOaDk2dFtofYyMIPNBkmwcNr3V 4NKXmJvLrFVTRmjetTsk+4iIokRP4mQU/3vxyf6KlqOD9Ko5Mjvd5nbi8maJ7EZ8hKfj /i6w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:cc:to:subject:dmarc-filter :dkim-signature:dkim-signature:arc-authentication-results; bh=BUb7yFZXtgaOiv4zDrdP63rDxaY7eRO5qouRoyAPRp4=; b=WViq2ectluoUskvj+jz+xEDv40gUmYRmkxdPKdUbmRjEFMujQjpmsUKjpce23INL6s pvBcGERt7/hsNsxeIpjOaSShrpXSvneDbm9cGBHy4ExFjaPPNJSsblu7IYrCdfrzGhzQ RQVoZZcgsCx8MHGl26nJf/a9ME8IMc5osV4MgFxHq1mUFBPJUum9mL6pBQXYEE51d9Z1 69S67XNEnxHw10PF5ZwCUIk07xXWBbQeHcpfHoluP0WuN928G0z1DdgoIXzXq07n+BP1 QCuxMQj0G6DMMldWbCg2g7rPER0XNA+2M+rwDBFxQ9tQKhPYoqmY6k5mccE7v1QLZYso lTYg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@codeaurora.org header.s=default header.b=hW8xmS/j; dkim=pass header.i=@codeaurora.org header.s=default header.b=XHtv66F+; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id g129si2746549pfc.338.2018.02.05.04.23.42; Mon, 05 Feb 2018 04:23:57 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@codeaurora.org header.s=default header.b=hW8xmS/j; dkim=pass header.i=@codeaurora.org header.s=default header.b=XHtv66F+; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752866AbeBEMXS (ORCPT + 99 others); Mon, 5 Feb 2018 07:23:18 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:38282 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752260AbeBEMXL (ORCPT ); Mon, 5 Feb 2018 07:23:11 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 2CC9A60A36; Mon, 5 Feb 2018 12:23:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1517833391; bh=ZPFw0QpFAu98TtM1zGuSfheV+a6LrB8lQZYFpYk8UX0=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=hW8xmS/jN0r/zrqMS5rYp/o9KecGLMGnR3YQPVYMoIkrzE/waJF2A6ijV+38JHREM zhu6YcDUCT/WU5UZjx2ACXD0HRdkqP9agKAlI+ZVHW9R9OxXgf8ZUXKWPfoXLJ3nGs 3TwtCIax/JjLERNp6RxYEcXMxYICSEXwccZY9+Pc= X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=2.0 tests=ALL_TRUSTED,BAYES_00, DKIM_SIGNED,T_DKIM_INVALID autolearn=no autolearn_force=no version=3.4.0 Received: from [10.204.100.248] (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: cpandya@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 512326090E; Mon, 5 Feb 2018 12:23:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1517833390; bh=ZPFw0QpFAu98TtM1zGuSfheV+a6LrB8lQZYFpYk8UX0=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=XHtv66F+GWl42z0+EiMu8yJmRxPTFoH2/2mogstfAs8iTNqVupZjaYDzQzPzZV3Gs k3s9Zmsua4TNWm0d/wlw79xbUk24KI0o32KiBeDXFFitXzS2TW6Br9O5yKbgXs1SLs NZNo8XR7S8N4F0KjwIMf0ia3xTsQqsHd0l8IxfoE= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 512326090E Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=cpandya@codeaurora.org Subject: Re: [PATCH] of: cache phandle nodes to decrease cost of of_find_node_by_phandle() To: Frank Rowand , Rob Herring Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <1517429142-25727-1-git-send-email-frowand.list@gmail.com> <5b84a166-c71b-3a41-9e7f-a7624a8441f6@codeaurora.org> <38cdcae5-ec0f-d1be-b024-1990d4387731@gmail.com> <9e23d32f-05a0-ce8a-41f8-9a1a3d66be37@codeaurora.org> <567731e8-8f89-bd6e-c3d4-e36400e69198@codeaurora.org> <0db129ef-ffd8-96fe-46a7-55fb575272e3@gmail.com> From: Chintan Pandya Message-ID: <0a178f4b-75fe-0564-7b0e-596f52fca1dc@codeaurora.org> Date: Mon, 5 Feb 2018 17:53:06 +0530 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <0db129ef-ffd8-96fe-46a7-55fb575272e3@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > > My question was trying to determine whether the numbers reported above > are for a debug configuration or a production configuration. My reported numbers are from debug configuration. > not a production configuration, I was requesting the numbers for a > production configuration. I'm working on it. But please expect some delay in my response for this. As I mentioned earlier, I need to work with few teams to get these numbers. > show a significant boot time reduction from the patch then there is > less justification for adding complexity to the existing code. I > prefer to use simpler data structures and algorithms __if__ extra > complexity does not provide any advantage. The balance between > complexity and benefits is a core software engineering issue. > Ok > >> I don't have a set up for taking these numbers in perf mode. For >> that, I need to ask some other team and round trip follow ups. In my >> set up, I rely on serial console logging which gets disabled in perf >> mode. >> >>> >>> Thanks, >>> >>> Frank >>> >> >> Chintan > Chintan -- Qualcom India Private Limited, on behalf of Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project