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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EEFA0FA3742 for ; Mon, 31 Oct 2022 11:11:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230157AbiJaLLq (ORCPT ); Mon, 31 Oct 2022 07:11:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53440 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230134AbiJaLLq (ORCPT ); Mon, 31 Oct 2022 07:11:46 -0400 Received: from out30-54.freemail.mail.aliyun.com (out30-54.freemail.mail.aliyun.com [115.124.30.54]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CDF66B847; Mon, 31 Oct 2022 04:11:44 -0700 (PDT) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R201e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018045176;MF=renyu.zj@linux.alibaba.com;NM=1;PH=DS;RN=18;SR=0;TI=SMTPD_---0VTVxoHU_1667214701; Received: from j66e01291.sqa.eu95.tbsite.net(mailfrom:renyu.zj@linux.alibaba.com fp:SMTPD_---0VTVxoHU_1667214701) by smtp.aliyun-inc.com; Mon, 31 Oct 2022 19:11:42 +0800 From: Jing Zhang To: linux-arm-kernel@lists.infradead.org, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Cc: John Garry , Will Deacon , James Clark , Mike Leach , Leo Yan , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Andrew Kilroy , Shuai Xue , Zhuo Song Subject: [PATCH RFC 1/6] perf vendor events arm64: Add topdown L1 metrics for neoverse-n2 Date: Mon, 31 Oct 2022 19:11:29 +0800 Message-Id: <1667214694-89839-2-git-send-email-renyu.zj@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1667214694-89839-1-git-send-email-renyu.zj@linux.alibaba.com> References: <1667214694-89839-1-git-send-email-renyu.zj@linux.alibaba.com> Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org The calculation formula of topdown L1 is from the document: https://documentation-service.arm.com/static/60250c7395978b529036da86?token= Since neoverse-n2 does not yet support topdown L2, metricgroups such as Cache, TLB, Branch, InstructionsMix, and PEutilization will be added to further analysis of performance bottlenecks in the following patches. Signed-off-by: Jing Zhang --- .../arch/arm64/arm/neoverse-n2/metrics.json | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/metrics.json diff --git a/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/metrics.json b/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/metrics.json new file mode 100644 index 0000000..b6b3b19 --- /dev/null +++ b/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/metrics.json @@ -0,0 +1,30 @@ +[ + { + "MetricExpr": "stall_slot_frontend / (5 * cpu_cycles)", + "PublicDescription": "Frontend bound L1 topdown metric", + "BriefDescription": "Frontend bound L1 topdown metric", + "MetricGroup": "TopDownL1", + "MetricName": "frontend_bound" + }, + { + "MetricExpr": "(1 - op_retired / op_spec) * (1 - stall_slot / (5 * cpu_cycles))", + "PublicDescription": "Wasted L1 topdown metric", + "BriefDescription": "Wasted L1 topdown metric", + "MetricGroup": "TopDownL1", + "MetricName": "wasted" + }, + { + "MetricExpr": "(op_retired / op_spec) * (1 - stall_slot / (5 * cpu_cycles))", + "PublicDescription": "Retiring L1 topdown metric", + "BriefDescription": "Retiring L1 topdown metric", + "MetricGroup": "TopDownL1", + "MetricName": "retiring" + }, + { + "MetricExpr": "stall_slot_backend / (5 * cpu_cycles)", + "PublicDescription": "Backend Bound L1 topdown metric", + "BriefDescription": "Backend Bound L1 topdown metric", + "MetricGroup": "TopDownL1", + "MetricName": "backend_bound" + } +] \ No newline at end of file -- 1.8.3.1 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 48CBFFA3740 for ; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The calculation formula of topdown L1 is from the document: https://documentation-service.arm.com/static/60250c7395978b529036da86?token= Since neoverse-n2 does not yet support topdown L2, metricgroups such as Cache, TLB, Branch, InstructionsMix, and PEutilization will be added to further analysis of performance bottlenecks in the following patches. Signed-off-by: Jing Zhang --- .../arch/arm64/arm/neoverse-n2/metrics.json | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/metrics.json diff --git a/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/metrics.json b/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/metrics.json new file mode 100644 index 0000000..b6b3b19 --- /dev/null +++ b/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/metrics.json @@ -0,0 +1,30 @@ +[ + { + "MetricExpr": "stall_slot_frontend / (5 * cpu_cycles)", + "PublicDescription": "Frontend bound L1 topdown metric", + "BriefDescription": "Frontend bound L1 topdown metric", + "MetricGroup": "TopDownL1", + "MetricName": "frontend_bound" + }, + { + "MetricExpr": "(1 - op_retired / op_spec) * (1 - stall_slot / (5 * cpu_cycles))", + "PublicDescription": "Wasted L1 topdown metric", + "BriefDescription": "Wasted L1 topdown metric", + "MetricGroup": "TopDownL1", + "MetricName": "wasted" + }, + { + "MetricExpr": "(op_retired / op_spec) * (1 - stall_slot / (5 * cpu_cycles))", + "PublicDescription": "Retiring L1 topdown metric", + "BriefDescription": "Retiring L1 topdown metric", + "MetricGroup": "TopDownL1", + "MetricName": "retiring" + }, + { + "MetricExpr": "stall_slot_backend / (5 * cpu_cycles)", + "PublicDescription": "Backend Bound L1 topdown metric", + "BriefDescription": "Backend Bound L1 topdown metric", + "MetricGroup": "TopDownL1", + "MetricName": "backend_bound" + } +] \ No newline at end of file -- 1.8.3.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel