Re: [External] : [RFC PATCH v2 1/6] perf vendor events arm64: Add topdown L1 metrics for neoverse-n2
From: John Garry <john.g.garry@oracle.com>
Date: 2022-11-21 10:22:48
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#./perf stat -e FRONTEND_BOUND sleep 1 event syntax error: 'FRONTEND_BOUND'
For metrics, use -M, not -e If this doesn't help, verify generated pmu-events/pmu-events.c is same after you make the change to try to use std arch events for metrics. Note that I never tested running my change. Thanks, John
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\___ parser error Run 'perf list' for a list of valid events Usage: perf stat [<options>] [<command>] -e, --event <event> event selector. use 'perf list' to list available eventsdiff --git a/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/pipeline.json b/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/pipeli index f9fae15..1089ca0 100644 --- a/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/pipeline.json +++ b/tools/perf/pmu-events/arch/arm64/arm/neoverse-n2/pipeline.json@@ -6,18 +6,24 @@ "ArchStdEvent": "STALL_BACKEND" }, { - "ArchStdEvent": "STALL_SLOT_FRONTEND" + "ArchStdEvent": "STALL_SLOT_FRONTEND", + "MetricExpr": "STALL_SLOT_FRONTEND - CPU_CYCLES" }, {
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