From patchwork Tue Jul 11 10:02:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Clark X-Patchwork-Id: 13308389 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 B64F4EB64DC for ; Tue, 11 Jul 2023 10:03:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=oDwnrLVLfAVOA39BM9/6cMVMveVsMHpUgNddpdkrr04=; b=lQmXH553QGpfgP Z3U6u/Fj3o+4amhxVYL9Go4yX/894pVtg8O1WDHYk6ObZ1lChtgZokIVCVkoLGpVaABVCeALUKluw LX0LHo9ei89fOoZ89HIMqfuTFDYdthfk8pXBsoqScH8oq2uj6YQZLaYyCEIBxK+QA+50w03OssAPX GdaZPi8YcpkcW2jVFInODmp5zzvKgjEr4vmM2BQ0huph8wADLJfD5trHI2yK4P3ReqMrCsDuahvZO BO492zHRiGtmXH16huRCAcOwKB1vxo7bS3653YmKiTvmXBGqpm0AsYSrtK1CA6W5XuI8/FvAWl1DT zTCXi0BwhrIk/UoA7drg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qJACv-00ENIV-25; Tue, 11 Jul 2023 10:02:57 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qJACs-00ENHC-34 for linux-arm-kernel@lists.infradead.org; Tue, 11 Jul 2023 10:02:56 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 71DF311FB; Tue, 11 Jul 2023 03:03:36 -0700 (PDT) Received: from e127643.arm.com (unknown [10.57.29.69]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 0D3D33F67D; Tue, 11 Jul 2023 03:02:50 -0700 (PDT) From: James Clark To: linux-perf-users@vger.kernel.org, irogers@google.com, renyu.zj@linux.alibaba.com, john.g.garry@oracle.com Cc: namhyung@kernel.org, acme@kernel.org, James Clark , Will Deacon , Mike Leach , Leo Yan , Peter Zijlstra , Ingo Molnar , Mark Rutland , Alexander Shishkin , Jiri Olsa , Adrian Hunter , Nick Forrington , Ilkka Koskinen , Kan Liang , Kajol Jain , Thomas Richter , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 3/5] perf vendor events arm64: Update scale units and descriptions of common topdown metrics Date: Tue, 11 Jul 2023 11:02:13 +0100 Message-Id: <20230711100218.1651995-4-james.clark@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230711100218.1651995-1-james.clark@arm.com> References: <20230711100218.1651995-1-james.clark@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230711_030255_082412_1EDEDED4 X-CRM114-Status: GOOD ( 10.19 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Metrics will be published here [1] going forwards, but they have slightly different scale units. To allow autogenerated metrics to be added more easily, update the scale units to match. The more detailed descriptions have also been taken and added to the common file. [1]: https://gitlab.arm.com/telemetry-solution/telemetry-solution/-/tree/main/data/pmu/cpu/ Signed-off-by: James Clark Acked-by: Ian Rogers --- tools/perf/pmu-events/arch/arm64/sbsa.json | 24 +++++++++++----------- 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/tools/perf/pmu-events/arch/arm64/sbsa.json b/tools/perf/pmu-events/arch/arm64/sbsa.json index f90b338261ac..4eed79a28f6e 100644 --- a/tools/perf/pmu-events/arch/arm64/sbsa.json +++ b/tools/perf/pmu-events/arch/arm64/sbsa.json @@ -1,34 +1,34 @@ [ { - "MetricExpr": "stall_slot_frontend / (#slots * cpu_cycles)", - "BriefDescription": "Frontend bound L1 topdown metric", + "MetricExpr": "100 * (stall_slot_frontend / (#slots * cpu_cycles))", + "BriefDescription": "This metric is the percentage of total slots that were stalled due to resource constraints in the frontend of the processor.", "DefaultMetricgroupName": "TopdownL1", "MetricGroup": "Default;TopdownL1", "MetricName": "frontend_bound", - "ScaleUnit": "100%" + "ScaleUnit": "1percent of slots" }, { - "MetricExpr": "(1 - op_retired / op_spec) * (1 - stall_slot / (#slots * cpu_cycles))", - "BriefDescription": "Bad speculation L1 topdown metric", + "MetricExpr": "100 * ((1 - op_retired / op_spec) * (1 - stall_slot / (#slots * cpu_cycles)))", + "BriefDescription": "This metric is the percentage of total slots that executed operations and didn't retire due to a pipeline flush.\nThis indicates cycles that were utilized but inefficiently.", "DefaultMetricgroupName": "TopdownL1", "MetricGroup": "Default;TopdownL1", "MetricName": "bad_speculation", - "ScaleUnit": "100%" + "ScaleUnit": "1percent of slots" }, { - "MetricExpr": "(op_retired / op_spec) * (1 - stall_slot / (#slots * cpu_cycles))", - "BriefDescription": "Retiring L1 topdown metric", + "MetricExpr": "100 * ((op_retired / op_spec) * (1 - stall_slot / (#slots * cpu_cycles)))", + "BriefDescription": "This metric is the percentage of total slots that retired operations, which indicates cycles that were utilized efficiently.", "DefaultMetricgroupName": "TopdownL1", "MetricGroup": "Default;TopdownL1", "MetricName": "retiring", - "ScaleUnit": "100%" + "ScaleUnit": "1percent of slots" }, { - "MetricExpr": "stall_slot_backend / (#slots * cpu_cycles)", - "BriefDescription": "Backend Bound L1 topdown metric", + "MetricExpr": "100 * (stall_slot_backend / (#slots * cpu_cycles))", + "BriefDescription": "This metric is the percentage of total slots that were stalled due to resource constraints in the backend of the processor.", "DefaultMetricgroupName": "TopdownL1", "MetricGroup": "Default;TopdownL1", "MetricName": "backend_bound", - "ScaleUnit": "100%" + "ScaleUnit": "1percent of slots" } ]