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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 350ACC433EF for ; Thu, 26 May 2022 16:08:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238465AbiEZQI1 (ORCPT ); Thu, 26 May 2022 12:08:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49598 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244751AbiEZQIZ (ORCPT ); Thu, 26 May 2022 12:08:25 -0400 Received: from mail-pf1-x433.google.com (mail-pf1-x433.google.com [IPv6:2607:f8b0:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 58D1C18B0A for ; Thu, 26 May 2022 09:08:23 -0700 (PDT) Received: by mail-pf1-x433.google.com with SMTP id c65so1484796pfb.1 for ; Thu, 26 May 2022 09:08:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=c1Bktjyy5yJ48/4ouEx7iyf57Oc/MXH/iXvxQddSwqY=; b=TG4xn66tfld7JgXJ99NFHNTFBy/Fa/PgxOABrwHjyvrHSkzB6WYiB2LwKkSu8YSgs3 DzNa+O5Yn5Gq42nfsi1YffVHYgdR/+S8s4R7jSB07TNYoCNwy5H2WinMRkOI8mylW8kk QT8+hQuDfgdJywPgsRGmtYzZ5kArx76tGcQUiMIHpQx85rGCW1SqqX56K1h1+CZ43ob5 4Wd/6ZYwt9FYdhx+O0wyo0SVMg9Nq2auNMb8WH0yChC1jwKNUvkQQYBkUw/p58ty6Tfv LW42xXWDPlW6rbkkqPC4l9q7CKBMX9aXCr7X8Psi1JoCZq29tec2Dj4hcZgrXn7KSSs/ WgkQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=c1Bktjyy5yJ48/4ouEx7iyf57Oc/MXH/iXvxQddSwqY=; b=Gs7OgJAvMfaY/e9h8KZ7yKntmLFaERvKNVgujI/9KwZ4EAk4mqFhzJqBlpL25y9Hel aQkdbYwTcB078HW7gyBlGSi6Cvz2SATDFiSzaFMJTN3DapntkiQYWrf7Zrg3yV5EeN/V F63nukG6jbqllL58aEOH5DntTEz9Pt30+Ru/SNZ9K4SkvS65il3KDeoKfTOL96jjCkEa nNBNzAfvBmsz5Zc+dGX3Or7mSLf/btDWI4fou/pxXTSWT2+RTonUmqdHpclGnPzQRhLJ +Jsyr4Cosq20pOJKaQI9ctdgeHHDEyQzgSp6KyDtN+EMoq0KtGtQ/hPParRkKNFs3Jzy ZAlA== X-Gm-Message-State: AOAM530QDlfIHEDHzAnj3Xzwh1bkxsVgyEZnE70nLh7cepzrFqXbutON WB96z1O6q/KQQezDlkIiUCM1LA== X-Google-Smtp-Source: ABdhPJzhCgX4b/z0L+UTtDS+3Sl4/75IHeHEbzY0Xzo3Wl9favASavx82GN1vnqWmi6FTV58ROfr1g== X-Received: by 2002:a63:f705:0:b0:3fa:9d26:f4ef with SMTP id x5-20020a63f705000000b003fa9d26f4efmr13344938pgh.613.1653581302725; Thu, 26 May 2022 09:08:22 -0700 (PDT) Received: from leoy-ThinkPad-X240s (n058152048195.netvigator.com. [58.152.48.195]) by smtp.gmail.com with ESMTPSA id k12-20020a170902d58c00b0016366fbc155sm1695092plh.255.2022.05.26.09.08.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 May 2022 09:08:22 -0700 (PDT) Date: Fri, 27 May 2022 00:08:17 +0800 From: Leo Yan To: Carsten Haitzler Cc: linux-kernel@vger.kernel.org, coresight@lists.linaro.org, suzuki.poulose@arm.com, mathieu.poirier@linaro.org, mike.leach@linaro.org, linux-perf-users@vger.kernel.org, acme@kernel.org Subject: Re: [PATCH 3/3] perf test: Add coresight tests to guage quality of data generated Message-ID: <20220526160817.GE795802@leoy-ThinkPad-X240s> References: <20220309122859.31487-1-carsten.haitzler@foss.arm.com> <20220309122859.31487-3-carsten.haitzler@foss.arm.com> <20220410083041.GA184647@leoy-ThinkPad-X240s> <050209c2-c784-e255-4e75-5c8674c5cfe0@foss.arm.com> <20220526082039.GA795802@leoy-ThinkPad-X240s> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220526082039.GA795802@leoy-ThinkPad-X240s> Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org On Thu, May 26, 2022 at 04:20:39PM +0800, Leo Yan wrote: [...] > Yes, my Juno board has 8GB but I also have DB410c with 1GB with quad > coes [1]. I am still concern for 256MB buffer size, it's not friendly for > embedded system, and even not good for server. For example, if we run > this testing on Arm server with 96 cores (like Hisilicon D06 board), > then we need the buffer size is: > > 256MiB * 96 = 16GiB Correct for my bad math... here should be 256MiB * 96 = 24GiB.