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=-2.3 required=3.0 tests=BAYES_05,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no 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 2AAC4C433E6 for ; Thu, 11 Mar 2021 17:05:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C630064FF3 for ; Thu, 11 Mar 2021 17:05:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229900AbhCKRFU (ORCPT ); Thu, 11 Mar 2021 12:05:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36596 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229706AbhCKREr (ORCPT ); Thu, 11 Mar 2021 12:04:47 -0500 Received: from mail-lf1-x130.google.com (mail-lf1-x130.google.com [IPv6:2a00:1450:4864:20::130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D6ECFC061574 for ; Thu, 11 Mar 2021 09:04:46 -0800 (PST) Received: by mail-lf1-x130.google.com with SMTP id n16so40985945lfb.4 for ; Thu, 11 Mar 2021 09:04:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=austral-dynamics-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=Wk1i/+E59VN2p1GZdqBrFpoZ/HXhq+1XbL87BkgAge4=; b=GNuBLxVa+wcxkQ/IY1Cg1+V/SdTiR9m61FjABnYHITYh/AWfCnBkRgGqDL9zPmIQM3 yGcc+N9qin/s2fEMIWOeSrcUnTh8i6TD8WxljA2NaJm6UKZp7AzDij/CFXLLMeEGGlN9 CC4v/KS2AA2nzVvgqy3LDmyQyYMQDBCpz8P0+q/fU/PVRwkiQru4n+hsLOGUnexu1fz9 pIFECIHgtHCcWw0meFj8jraJMMVe0VFTMQITzt3tOh7S7VaS6FRNzWNA/Yh+oqaEVz0w b7yr+VI9/Zfalgv1wbbDl87a0yz0A2TE69LPok73Wq/z6KF0l6N74YOX4Q2w4Rk66wP/ 7cCQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=Wk1i/+E59VN2p1GZdqBrFpoZ/HXhq+1XbL87BkgAge4=; b=scVr7QJpN8bu8owi1kEm/bFbT/4Zg0dkh4UUqGavY9zbSZYOelkWZT1cN7vjGqCMJJ TMmAqFKFUzxE4TjKV9UJwN3K3WIqgFWQ1SCAzGKlgBHw6YVC0FKe2mhVnkcN0Nyt/uUL djNSJ+UdAeXFcKdDLGEzyb1g/zDolubxTB8lA+fqKD8JV/0QYHrUkxjKs00J737OJbMz TUBuQ1hPLldPxutGwnmLHUckw5yddlzJPcCiuPlUXXnTdBD3Il7/4exYtr5dvkhiugH6 oSecSgaWib9SxwYypkvHTNb2zJThmir52OeX+AR3cFiOL7D2m//uyssQ/K86Os+eHAwT WHCQ== X-Gm-Message-State: AOAM531Jhb8VSX2+nmpvL4/xx5IdgH54GT7kzX/Cc82aA/6Po7nnyovm pjteesvgcF4MgXzlqtwuw7/kfo5QOX3jBWLKEV4m19jOXY0590V2 X-Google-Smtp-Source: ABdhPJwtupjA0ObzZ9xABi74Z2LZdnWFdXoUnnWvxbhMLR50W8aLVKRCyKmLA5Xp0q8wt297+4ZPI3kUEf2cr+G+1rw= X-Received: by 2002:a05:6512:2212:: with SMTP id h18mr2804803lfu.330.1615482285301; Thu, 11 Mar 2021 09:04:45 -0800 (PST) MIME-Version: 1.0 References: <9be68ca5-9fec-161c-1b37-1b47c0a1d845@monom.org> In-Reply-To: From: Michel Macena Oliveira Date: Thu, 11 Mar 2021 14:02:53 -0300 Message-ID: Subject: Re: PREEMPT_RT benchmark To: "Ahmed S. Darwish" , linux-rt-users@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-rt-users@vger.kernel.org >[ again, no top-posting please... ] Sorry for that, I haven't noticed, but thanks for the advice. >Well, if you do it for the benchmark, but not for production, then of >course, the benchmark is meaningless. Then in case of a RT application for production I should "live" with this problem? >If you're interested, I presented a small talk about the topic here: >https://linutronix.de/PDF/Realtime_and_graphics-acontradiction2021.pdf Thanks, really helpful, but if I understand, in your application you've used Intel CAT to mitigate the latency and plan to use Intel MBA as well. Is that true?