Messages in this thread | | | Date | Mon, 21 Nov 2022 10:22:01 +0000 | Subject | Re: [External] : [RFC PATCH v2 1/6] perf vendor events arm64: Add topdown L1 metrics for neoverse-n2 | From | John Garry <> |
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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
> \___ 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 events > > > > diff --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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