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Thunderbird/102.14.0 Subject: Re: [PATCH v6 6/6] perf vendor events arm64: Update N2 and V2 metrics and events using Arm telemetry repo Content-Language: en-US To: James Clark , linux-perf-users@vger.kernel.org, irogers@google.com, renyu.zj@linux.alibaba.com, acme@kernel.org Cc: Will Deacon , Mike Leach , Leo Yan , Peter Zijlstra , Ingo Molnar , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Adrian Hunter , Kajol Jain , Haixin Yu , Nick Forrington , Kan Liang , Andrii Nakryiko , Eduard Zingerman , Sohom Datta , Rob Herring , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org References: <20230816114841.1679234-1-james.clark@arm.com> <20230816114841.1679234-7-james.clark@arm.com> From: John Garry Organization: Oracle Corporation In-Reply-To: <20230816114841.1679234-7-james.clark@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: LO4P123CA0276.GBRP123.PROD.OUTLOOK.COM (2603:10a6:600:195::11) 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aQo3coVKTsw0FBD7kWL4nrmB0J9Eg6QK2wG/9LN2T8eSy449kKs/o8oZllUEo+lBP2/sdEI7uK3y3nreZaqVOA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR10MB6787 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-08-17_03,2023-08-17_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 phishscore=0 mlxscore=0 bulkscore=0 mlxlogscore=999 suspectscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308170101 X-Proofpoint-GUID: sWXwZmKjrJ0LC9kxAHrCRKID0ICAuKJy X-Proofpoint-ORIG-GUID: sWXwZmKjrJ0LC9kxAHrCRKID0ICAuKJy Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org On 16/08/2023 12:47, James Clark wrote: > Apart from some slight naming and grouping differences, the new metrics > are functionally the same as the existing ones. Any missing metrics were > manually appended to the end of the auto generated file. > > For the events, the new data includes descriptions that may have product > specific details and new groupings that will be consistent with other > products. > > After generating the metrics from the telemetry repo [1], the following > manual steps were performed: > > * Change the topdown expressions to compare on CPUID and use > #slots so that the same data can be shared between N2 and V2. Apart > from these modifications, the expressions now match more closely with > the Arm telemetry data which will hopefully make future updates > easier. > > * Append some metrics from the old N2/V2 data that aren't present in > the telemetry data. These will possibly be added to the > telemetry-solution repo at a later time: > > l3d_cache_mpki, l3d_cache_miss_rate, branch_pki, ipc_rate, spec_ipc, > retired_rate, wasted_rate, branch_immed_spec_rate, > branch_return_spec_rate, branch_indirect_spec_rate > > [1]:https://urldefense.com/v3/__https://gitlab.arm.com/telemetry-solution/telemetry-solution/-/blob/main/data/pmu/cpu/neoverse/neoverse-n2.json__;!!ACWV5N9M2RV99hQ!NW7DYe7T69u8RFn9WLyiCcoHm-8BtlxNK3PRw19udocwlwv0vQpjcSDT5XqGbWzvPQyFrG-eRkuu_VZt7cO8-Q$ > > Signed-off-by: James Clark Reviewed-by: John Garry