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=-2.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 027F3C3A59F for ; Mon, 26 Aug 2019 13:55:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C85D52080C for ; Mon, 26 Aug 2019 13:55:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="WoEjDa5T" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732156AbfHZNzk (ORCPT ); Mon, 26 Aug 2019 09:55:40 -0400 Received: from mail-qt1-f196.google.com ([209.85.160.196]:37296 "EHLO mail-qt1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727261AbfHZNzk (ORCPT ); Mon, 26 Aug 2019 09:55:40 -0400 Received: by mail-qt1-f196.google.com with SMTP id y26so17940277qto.4; Mon, 26 Aug 2019 06:55:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:date:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=662h+2yvuOf+WXhpcki588zNBbSoWr3HEqfisS3L1FM=; b=WoEjDa5TJI91R5TOym0Prxy5m/wNjeiz1a0iUpX28asnzjZw7Ebl/41avQrXvBk4oB vFZc5yHKTHMYs2RUZ1UnbHuqlTQj/bBf67D+xrMw7vTpLcOwpEmYMCcVFSlKCw6BwXEF g/EQs1psuOeXUCsLG1/Ds9OLmfIrST78t8OZAsYaLgfiZdWYDDR3A59g6N5ZD0lmq2eJ /is1GzSmsAw4kJccmUbdxpOGV0zpfJadl3uUJceyfQLxHBUtcYakEg93EIn6frQKCIzU 3Fou2b5pwKP05PS8qD4bJXSrEip+q42TJc0Mpjisb6xb5zyALsGBjS2iUgHrUl0re1Ed 5vfw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:date:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=662h+2yvuOf+WXhpcki588zNBbSoWr3HEqfisS3L1FM=; b=SxOFUZR6eJhtmBg4YzGYRIDogHDTpPwIxMir4PDDX9rcuhKu7udVMlyJaFWo1sCX1Y jUtkHihUq/3uwoOC6/084PEHnRQnX7M8BClZ/z9KPevNgRsob5HA/AKNt0q6sG4MCzQ6 dMD0c2Q/RVQ6hbDXby5INpWr2w/iJlb4Am75Y1DY2lZY/Byz5hlEew2L/zqo7H6HKMAX EU9CTtuPg+X9ztryAIFXd7eMc31KgshpQU7dKvnXijvgRyTVCLIwdTyhH9X9rAOkiyN7 XrztDFvSMohX8L2yhnlBDW/wV9yBc6cyqpzcGo95eRG1HQBNOxkwTgn4SpFT+fwquY/U TVRA== X-Gm-Message-State: APjAAAVoM4ntj7MaEUtrProwMK71WZe8s6+rhO+lkOlXfq+ZPYDlQ9aP X8Eazbf9/VDo6kU9aUIQ9ks= X-Google-Smtp-Source: APXvYqwKA28pWdGTL/rd6C1Y0xdI1IxhCq4nupXsTMtKUvWBDQSklDz1F20OVCekAqRIMMyaLsyTFw== X-Received: by 2002:ac8:748a:: with SMTP id v10mr17466700qtq.386.1566827739201; Mon, 26 Aug 2019 06:55:39 -0700 (PDT) Received: from quaco.ghostprotocols.net ([179.97.35.50]) by smtp.gmail.com with ESMTPSA id r189sm6642167qkc.60.2019.08.26.06.55.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Aug 2019 06:55:38 -0700 (PDT) From: Arnaldo Carvalho de Melo X-Google-Original-From: Arnaldo Carvalho de Melo Received: by quaco.ghostprotocols.net (Postfix, from userid 1000) id 3850A40916; Mon, 26 Aug 2019 10:55:36 -0300 (-03) Date: Mon, 26 Aug 2019 10:55:36 -0300 To: Alexey Budankov Cc: Jiri Olsa , Namhyung Kim , Alexander Shishkin , Peter Zijlstra , Andi Kleen , Kan Liang , Stephane Eranian , Ian Rogers , Song Liu , "Jin, Yao" , Ingo Molnar , Thomas Gleixner , Kees Cook , Jonatan Corbet , "linux-perf-users@vger.kernel.org" , linux-kernel , Mark Rutland Subject: Re: BoF on LPC 2019 : Linux Perf advancements for compute intensive and server systems Message-ID: <20190826135536.GA24801@kernel.org> References: <43216530-4410-6cc4-aa4a-51fa7e7c1b0c@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <43216530-4410-6cc4-aa4a-51fa7e7c1b0c@linux.intel.com> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Mon, Aug 26, 2019 at 02:36:48PM +0300, Alexey Budankov escreveu: > > Hi, > > There is a BoF session scheduled on Linux Plumbers Conference 2019 event. > If you plan attend the event feel free to join and discuss about the BoF > topic and beyond: > > Linux Perf advancements for compute intensive and server systems: > > "Modern server and compute intensive systems are naturally built around > several top performance CPUs with large amount of cores and equipped > by shared memory that spans a number of NUMA domains. Compute intensive > workloads usually implement highly parallel CPU bound cyclic codes > performing mathematics calculations that reference data located in > the shared memory. Performance observability and profiling of these > workloads on such systems have unique characteristics and impose specific > requirements on software performance tools. The requirements include > tools CPU scalability, coping with high rate and volume of collected > performance data as well as NUMA awareness. In order to fulfill that > requirements a number of extensions have been implemented in Linux Perf > tool that are currently a part of the Linux kernel source tree > [1], [2], [3], [4]" All those are already merged, after long reviewing phases and lots of testing, right? I think the next step for people working in this area, in preparation for this BoF, is to list what are their current efforts, like Ian et all did in: https://linuxplumbersconf.org/event/4/contributions/291/ - Arnaldo > Best regards, > Alexey > > [1] https://marc.info/?l=linux-kernel&m=154149439404555&w=2 > [2] https://marc.info/?l=linux-kernel&m=154817912621465&w=2 > [3] https://marc.info/?l=linux-kernel&m=155293062518459&w=2 > [4] https://www.kernel.org/doc/html/latest/admin-guide/perf-security.html -- - Arnaldo