From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 74719C433E4 for ; Mon, 13 Jul 2020 08:57:05 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3E9BC2068F for ; Mon, 13 Jul 2020 08:57:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Ollwqev2" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3E9BC2068F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=xSz56yY8bTPP0JVZimI2JLmbQubgU+s7DZ5ZXyw1i1Y=; b=Ollwqev2SkUpbqXvjaSHtBRv/ vi46oeJQvO0JrM9jg+zGd5W45HPBsN8c11kTs8YfOvmnqGY7ePHFJlwPBzUVcAugxdHXVLhxo27aY /YCmCXgHyCLxw1x0p6fPUT3gi0GP0twNtMP3UbdMHGF4s2LGTTgtP7taUvyhUcNXLbml522PNM24X 8n4tGWBMzrNhCHGI8Uztpcgyfx6pln3sap8Vk0J4FfCujNhb7fuk0ChmMpQL8ngonVA2Ut+T/DWrt gNOP3lZxF81GsDvphNwjqUorDtVlGPe3puOdc4i2Z313V+6rQYIU0poazZnuA1puKepYkwgicHM2G IQGa2EZhg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1juuFS-0002RS-Dn; Mon, 13 Jul 2020 08:55:42 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1juuFP-0002Qy-FK for linux-arm-kernel@lists.infradead.org; Mon, 13 Jul 2020 08:55:40 +0000 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 0267E30E; Mon, 13 Jul 2020 01:55:30 -0700 (PDT) Received: from [10.37.12.45] (unknown [10.37.12.45]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 95A343F7D8; Mon, 13 Jul 2020 01:55:26 -0700 (PDT) Subject: Re: [RFC PATCH 0/2] PM / devfreq: Add delayed timer for polling To: Willy Wolff References: <20200703062622.11773-1-cw00.choi@samsung.com> <20200703123346.6fy6i33ks6nox46a@macmini.local> <20200710151233.ci5c4rgwb64eswy7@macmini.local> From: Lukasz Luba Message-ID: Date: Mon, 13 Jul 2020 09:55:24 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20200710151233.ci5c4rgwb64eswy7@macmini.local> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200713_045539_596549_8612D5B1 X-CRM114-Status: GOOD ( 24.51 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-samsung-soc@vger.kernel.org, chanwoo@kernel.org, b.zolnierkie@samsung.com, k.konieczny@samsung.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, krzk@kernel.org, Chanwoo Choi , kyungmin.park@samsung.com, kgene@kernel.org, myungjoo.ham@samsung.com, s.nawrocki@samsung.com, linux-arm-kernel@lists.infradead.org Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Willy On 7/10/20 4:12 PM, Willy Wolff wrote: > Hi Lukasz, > > On 2020-07-08-15-25-03, Lukasz Luba wrote: >> Hi Willy, >> >> On 7/3/20 1:33 PM, Willy Wolff wrote: >>> Hi Chanwoo, >>> >>> I think it doesn't help on the benchmark I suggested that is doing only memory >>> accesses. With both timer, I have the same timing. >>> >>> To test the benchmark with these new patches about timer: >>> >>> git clone https://github.com/wwilly/benchmark.git \ >>> && cd benchmark \ >>> && source env.sh \ >>> && ./bench_build.sh \ >>> && bash source/scripts/test_dvfs_mem_patched.sh >>> >>> The benchmark is set by default to run for 1s, but you can increase this by >>> tweaking the script as: >>> >>> taskset 8 ./bench_install/bin/microbe_cache 33554431 0 9722222