From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lists.ozlabs.org (Postfix) with ESMTP id 49A491A0030 for ; Sat, 18 Apr 2015 06:09:57 +1000 (AEST) Date: Fri, 17 Apr 2015 13:09:54 -0700 From: Andi Kleen To: Jiri Olsa Subject: Re: 'perf upgrade' (was: Re: [PATCH v9 00/11] Add support for JSON event files.) Message-ID: <20150417200954.GA7056@tassilo.jf.intel.com> References: <1428993665-2133-1-git-send-email-sukadev@linux.vnet.ibm.com> <20150414085541.GA30202@gmail.com> <1429010508.27414.1.camel@ellerman.id.au> <20150414125822.GA32761@gmail.com> <1429052004.10000.1.camel@ellerman.id.au> <20150415092557.GA14942@gmail.com> <20150415205042.GA11620@us.ibm.com> <20150417153126.GA17654@krava> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20150417153126.GA17654@krava> Cc: Arnaldo Carvalho de Melo , Peter Zijlstra , peterz@infradead.org, linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo , Pekka Enberg , Linus Torvalds , mingo@redhat.com, Borislav Petkov , namhyung@kernel.org, Thomas Gleixner , Sukadev Bhattiprolu , linuxppc-dev@lists.ozlabs.org, Ingo Molnar List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Fri, Apr 17, 2015 at 05:31:26PM +0200, Jiri Olsa wrote: > On Wed, Apr 15, 2015 at 01:50:42PM -0700, Sukadev Bhattiprolu wrote: > > SNIP > > > | > > | - to blindly follow some poorly constructed vendor format with no > > | high level structure, that IMHO didn't work very well when OProfile > > | was written, and misrepresenting it as 'symbolic event names'. > > | > > | Take a look at: > > | > > | https://download.01.org/perfmon/HSW/Haswell_core_V17.json > > | > > | and weep. > > > > Evil vendor formats, but to be fair, here is what _we_ have today: > > > > perf stat -e r10068,r20036,r40060,r40ac sleep 1 > > hum, you could also use the 'cpu/event=.../' syntax right? That's even worse -- same hex numbers, just more redundancy. All the other profilers support symbolic names, which is what users want. -Andi -- ak@linux.intel.com -- Speaking for myself only From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753183AbbDQUJ6 (ORCPT ); Fri, 17 Apr 2015 16:09:58 -0400 Received: from mga14.intel.com ([192.55.52.115]:49834 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751091AbbDQUJz (ORCPT ); Fri, 17 Apr 2015 16:09:55 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,596,1422950400"; d="scan'208";a="681858508" Date: Fri, 17 Apr 2015 13:09:54 -0700 From: Andi Kleen To: Jiri Olsa Cc: Sukadev Bhattiprolu , Ingo Molnar , Michael Ellerman , mingo@redhat.com, Arnaldo Carvalho de Melo , peterz@infradead.org, namhyung@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, Pekka Enberg , Arnaldo Carvalho de Melo , Peter Zijlstra , Thomas Gleixner , Linus Torvalds , Borislav Petkov Subject: Re: 'perf upgrade' (was: Re: [PATCH v9 00/11] Add support for JSON event files.) Message-ID: <20150417200954.GA7056@tassilo.jf.intel.com> References: <1428993665-2133-1-git-send-email-sukadev@linux.vnet.ibm.com> <20150414085541.GA30202@gmail.com> <1429010508.27414.1.camel@ellerman.id.au> <20150414125822.GA32761@gmail.com> <1429052004.10000.1.camel@ellerman.id.au> <20150415092557.GA14942@gmail.com> <20150415205042.GA11620@us.ibm.com> <20150417153126.GA17654@krava> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150417153126.GA17654@krava> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 17, 2015 at 05:31:26PM +0200, Jiri Olsa wrote: > On Wed, Apr 15, 2015 at 01:50:42PM -0700, Sukadev Bhattiprolu wrote: > > SNIP > > > | > > | - to blindly follow some poorly constructed vendor format with no > > | high level structure, that IMHO didn't work very well when OProfile > > | was written, and misrepresenting it as 'symbolic event names'. > > | > > | Take a look at: > > | > > | https://download.01.org/perfmon/HSW/Haswell_core_V17.json > > | > > | and weep. > > > > Evil vendor formats, but to be fair, here is what _we_ have today: > > > > perf stat -e r10068,r20036,r40060,r40ac sleep 1 > > hum, you could also use the 'cpu/event=.../' syntax right? That's even worse -- same hex numbers, just more redundancy. All the other profilers support symbolic names, which is what users want. -Andi -- ak@linux.intel.com -- Speaking for myself only