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 21237C77B76 for ; Mon, 17 Apr 2023 13:41:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230448AbjDQNlR (ORCPT ); Mon, 17 Apr 2023 09:41:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39500 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230496AbjDQNlL (ORCPT ); Mon, 17 Apr 2023 09:41:11 -0400 Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EA16C72A4 for ; Mon, 17 Apr 2023 06:41:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1681738868; x=1713274868; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=8ioEVi0PkJBP6SHdN0OIps0cag5EDrbnKnbBrHndp9Q=; b=OPmgP+8b+hYA8kO2MetnpZCJvslK4nmVtYGDHRKXyMpv5CD8Pjo2LjAa oCz5SoGZJ8usA3ng47EqcWjljATbLWSqp2gRLiE0LFE+fPC4Yh5xO8L3c XY2yDGYbNLfbFYThW8uzGaQtIaDW6rW3QKkU46ksrJU8Cn5FqPKLRKdtI chX3GD2o7tQEyrWSOA1hTd4RoAIiq8htKF3Lc8UsWsWDOtHwDzEYkV6rB 630Y6CXnNXxDF46k64itLJpZzzV3iCL+vjI4gbGWuZZJmqRa9ngR80s1n lJBaEw+oLz6LxcmehEh3iFzGxIa0S9CeBOiSA6vjHUG04P1lYO83fWPjV Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10683"; a="329061848" X-IronPort-AV: E=Sophos;i="5.99,204,1677571200"; d="scan'208";a="329061848" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Apr 2023 06:41:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10683"; a="759952618" X-IronPort-AV: E=Sophos;i="5.99,204,1677571200"; d="scan'208";a="759952618" Received: from macharje-mobl.amr.corp.intel.com (HELO [10.209.71.14]) ([10.209.71.14]) by fmsmga004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Apr 2023 06:41:06 -0700 Message-ID: Date: Mon, 17 Apr 2023 06:41:06 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [PATCH 2/6] perf: Support branch events logging Content-Language: en-US To: Peter Zijlstra Cc: "Liang, Kan" , mingo@redhat.com, acme@kernel.org, linux-kernel@vger.kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, namhyung@kernel.org, irogers@google.com, adrian.hunter@intel.com, eranian@google.com References: <20230414103832.GD83892@hirez.programming.kicks-ass.net> <1d62b865-5d31-ec36-99e0-785844f79199@linux.intel.com> <20230414145324.GB761523@hirez.programming.kicks-ass.net> <803927bb-6f74-5c09-3c18-2fd5f423287b@linux.intel.com> <20230414160945.GC761523@hirez.programming.kicks-ass.net> <085fa11e-ea07-c148-1b32-8a09007ee12b@linux.intel.com> <20230414192407.GA778423@hirez.programming.kicks-ass.net> <2428e6a2-9578-1e1d-bdef-ffcc87301503@linux.intel.com> <20230414220106.GC778423@hirez.programming.kicks-ass.net> <20230417115516.GM83892@hirez.programming.kicks-ass.net> From: Andi Kleen In-Reply-To: <20230417115516.GM83892@hirez.programming.kicks-ass.net> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 4/17/2023 4:55 AM, Peter Zijlstra wrote: > >> to create groups. I thought one of the basic ideas of perf was to be able to >> abstract those things. > Yeah, the abstraction at hand is a group. Okay then if we add perf record metrics and want to support this feature we'll need to replicate the kernel scheduler in the user tools -Andi