From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754673AbeDTLoY (ORCPT ); Fri, 20 Apr 2018 07:44:24 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:50332 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754591AbeDTLoX (ORCPT ); Fri, 20 Apr 2018 07:44:23 -0400 Subject: Re: s390 perf events JSONs query To: John Garry , brueckner@linux.vnet.ibm.com, tmricht@linux.vnet.ibm.com Cc: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Linuxarm , linux-kernel@vger.kernel.org, Will Deacon References: <68e84967-ca29-0b86-027a-76307e003a55@huawei.com> From: Thomas-Mich Richter Organization: IBM LTC Date: Fri, 20 Apr 2018 13:44:15 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <68e84967-ca29-0b86-027a-76307e003a55@huawei.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 18042011-0044-0000-0000-0000054A5DA0 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18042011-0045-0000-0000-0000288A7F43 Message-Id: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-04-20_05:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1804200114 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/20/2018 12:51 PM, John Garry wrote: > Hi Hendrik, Thomas, > > I noticed that in 4.17-rc1 support was included for s390 perf pmu-events. I also notice that the JSONs contain many common (identical actually) events between different chips for this arch. > > Support was added for factoring out common arch events in https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/tools/perf/pmu-events?h=next-20180420&id=e9d32c1bf0cd7a98358ec4aa1625bf2b3459b9ac > > ARM64 chips use this feature. I am not familiar with the s390 arch, but do you think you could also use this feature? > > Thanks, > John > Thanks John, for bringing this to my attention. Yes I will definitely look into this feature and will try to rework our s390 json files when this seems beneficial. I did not notice this patch on the linux-perf-users mailing list. Was it there for review? I do ask this because recently I have nearly no traffic on this list in my reader, so I wonder if there is something wrong with my mailing list subscription or setup. Thanks. -- Thomas Richter, Dept 3303, IBM LTC Boeblingen Germany -- Vorsitzende des Aufsichtsrats: Martina Koederitz Geschäftsführung: Dirk Wittkopp Sitz der Gesellschaft: Böblingen / Registergericht: Amtsgericht Stuttgart, HRB 243294