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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 C4954C31E45 for ; Thu, 13 Jun 2019 16:32:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A442720644 for ; Thu, 13 Jun 2019 16:32:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392376AbfFMQct (ORCPT ); Thu, 13 Jun 2019 12:32:49 -0400 Received: from mga12.intel.com ([192.55.52.136]:24383 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730847AbfFMIPL (ORCPT ); Thu, 13 Jun 2019 04:15:11 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Jun 2019 01:15:10 -0700 X-ExtLoop1: 1 Received: from ahunter-desktop.fi.intel.com (HELO [10.237.72.198]) ([10.237.72.198]) by fmsmga006.fm.intel.com with ESMTP; 13 Jun 2019 01:15:09 -0700 Subject: Re: [PATCH 01/11] perf intel-pt: Add new packets for PEBS via PT To: Arnaldo Carvalho de Melo Cc: Jiri Olsa , linux-kernel@vger.kernel.org, Peter Zijlstra , Alexander Shishkin References: <20190610072803.10456-1-adrian.hunter@intel.com> <20190610072803.10456-2-adrian.hunter@intel.com> <20190612000945.GE28689@kernel.org> <20190612124140.GA4836@kernel.org> <20190612132852.GB4836@kernel.org> From: Adrian Hunter Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki Message-ID: Date: Thu, 13 Jun 2019 11:13:54 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <20190612132852.GB4836@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/06/19 4:28 PM, Arnaldo Carvalho de Melo wrote: > Em Wed, Jun 12, 2019 at 03:52:11PM +0300, Adrian Hunter escreveu: >> On 12/06/19 3:41 PM, Arnaldo Carvalho de Melo wrote: >>> Em Wed, Jun 12, 2019 at 08:58:00AM +0300, Adrian Hunter escreveu: >>>> On 12/06/19 3:09 AM, Arnaldo Carvalho de Melo wrote: >>>>> Em Mon, Jun 10, 2019 at 10:27:53AM +0300, Adrian Hunter escreveu: >>>>>> Add 3 new packets to supports PEBS via PT, namely Block Begin Packet (BBP), >>>>>> Block Item Packet (BIP) and Block End Packet (BEP). PEBS data is encoded >>>>>> into multiple BIP packets that come between BBP and BEP. The BEP packet >>>>>> might be associated with a FUP packet. That is indicated by using a >>>>>> separate packet type (INTEL_PT_BEP_IP) similar to other packets types with >>>>>> the _IP suffix. >>>>>> >>>>>> Refer to the Intel SDM for more information about PEBS via PT. >>>>> >>>>> In these cases would be nice to provide an URL and page number, for >>>>> convenience. >>>> >>>> Intel SDM: >>>> >>>> https://software.intel.com/en-us/articles/intel-sdm >>>> >>>> May 2019 version: Vol. 3B 18.5.5.2 PEBS output to Intel® Processor Trace >>> >>> Thanks! I'll add to that cset. >>> >>> What about the kernel bits? >> >> Awaiting V2, here is a link to the patches: >> >> https://lore.kernel.org/lkml/20190502105022.15534-1-alexander.shishkin@linux.intel.com/ > > yeah, I saw those and PeterZ's comments, that is why I asked about them > :-) > >> There is also still a few more tools changes dependent upon the kernel patches. > > But I think I can go ahead and push the decoder bits, when the kernel > patches get merged we'll be almost ready to make full use of what it > provides, right? Yes