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jevents: Add sys_events_find_events_table() To: Ian Rogers Cc: namhyung@kernel.org, acme@kernel.org, jolsa@kernel.org, linux-arm-kernel@lists.infradead.org, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, renyu.zj@linux.alibaba.com, shangxiaojing@huawei.com, kjain@linux.ibm.com, kan.liang@linux.intel.com References: <20230628102949.2598096-1-john.g.garry@oracle.com> <20230628102949.2598096-5-john.g.garry@oracle.com> <897dcf1d-6a04-33d3-9c4f-ea9d1706cdad@oracle.com> <297ddf04-9b35-7613-8efd-2857668b6835@oracle.com> <0d6e41d1-2f27-9a90-1516-c4e50bad1c21@oracle.com> <4f0355ec-8bc6-e51a-ab5b-61d555a68b6c@oracle.com> Content-Language: en-US From: John Garry Organization: Oracle Corporation In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: LNXP123CA0008.GBRP123.PROD.OUTLOOK.COM (2603:10a6:600:d2::20) To DM6PR10MB4313.namprd10.prod.outlook.com (2603:10b6:5:212::20) MIME-Version: 1.0 X-MS-PublicTrafficType: 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X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-19_10,2023-07-19_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 mlxscore=0 adultscore=0 spamscore=0 phishscore=0 bulkscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307190139 X-Proofpoint-GUID: jtuIHyxz49FqUDt0rrTsr5HkjTodrnN5 X-Proofpoint-ORIG-GUID: jtuIHyxz49FqUDt0rrTsr5HkjTodrnN5 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 19/07/2023 16:25, Ian Rogers wrote: >> I was thinking about this a little further. So you suggest that the >> metric expression contains PMU name per term, like >> "cpu_atom@instructions@ / cpu_atom@cycles@" - how would/could this work >> for PMUs with more complex naming, like the form hisi_siclXXX_cpa_YYY? >> Would we use the "Unit" expression for the metric name, like >> "@hisi_sicl,cpa@event_foo"? > How does this work for events? The "@hisi_sicl,cpa@event_foo" looks > strange, shouldn't it be "hisi_sicl,cpa@event_foo@" but then hisi_sicl > looks like an event name. Yeah, that was a typo from me - like you say, it would be hisi_sicl,cpa@event_foo@ So is that what you would be suggesting then, such that we specify the PMU in the metric terms? It does look a bit odd :) > >>>> BTW, which git repo/branch do you guys use for dev? I thought that it >>>> would be acme git, but Namhyung says "We moved to new repos from acme to >>>> perf/perf-tools and perf/perf-tools-next" - where is repo "perf"? >>> Current development is here now: >>> https://urldefense.com/v3/__https://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git/log/?h=perf-tools-next__;!!ACWV5N9M2RV99hQ!OQDHOClSjd6nVZhmgzrK3RwzXuQpP54QhqyIKpITa_MFD4PLdS7yPYSnvInFja9nrFx9Sd-UnlsJ6XUqAh4$ >> Can that be added to the MAINTAINERS file? I suppose it is ok under >> "PERFORMANCE EVENTS SUBSYTEM", since the two would-be git repos listed >> under that same entry would be pretty obvious in purpose. > Arnaldo could you take a look at doing this? Thanks, John