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    SubjectRe: [PATCHv3 00/19] perf metric: Add support to reuse metric
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    On 7/20/20 1:49 PM, Jiri Olsa wrote:
    > On Mon, Jul 20, 2020 at 01:39:24PM +0530, kajoljain wrote:
    >
    > SNIP
    >
    >> This is with your perf/metric branch:
    >> command# ./perf stat -M PowerBUS_Frequency -C 0 -I 1000
    >> assertion failed at util/metricgroup.c:709
    >> # time counts unit events
    >> 1.000054545 7,807,505 hv_24x7/pm_pb_cyc,chip=0/ # 2.0 GHz PowerBUS_Frequency_0
    >> 1.000054545 7,807,485 hv_24x7/pm_pb_cyc,chip=1/
    >> 2.000232761 7,807,500 hv_24x7/pm_pb_cyc,chip=0/ # 2.0 GHz PowerBUS_Frequency_0
    >> 2.000232761 7,807,478 hv_24x7/pm_pb_cyc,chip=1/
    >> 3.000363762 7,799,665 hv_24x7/pm_pb_cyc,chip=0/ # 1.9 GHz PowerBUS_Frequency_0
    >> 3.000363762 7,807,502 hv_24x7/pm_pb_cyc,chip=1/
    >> ^C 3.259418599 2,022,150 hv_24x7/pm_pb_cyc,chip=0/ # 0.5 GHz PowerBUS_Frequency_0
    >> 3.259418599 2,022,164 hv_24x7/pm_pb_cyc,chip=1/
    >>
    >> Performance counter stats for 'CPU(s) 0':
    >>
    >> 25,436,820 hv_24x7/pm_pb_cyc,chip=0/ # 6.4 GHz PowerBUS_Frequency_0
    >> 25,444,629 hv_24x7/pm_pb_cyc,chip=1/
    >>
    >> 3.259505529 seconds time elapsed
    >
    > I found the bug, we are not adding runtime metrics as standalone ones,
    > but as referenced metrics.. will fix and try to add test for that
    >
    > as for testing.. do I need some special ppc server to have support for this?

    Hi jiri,
    We need power9 lpar machine and need to make sure `CONFIG_HV_PERF_CTRS` is
    enabled.

    Thanks,
    Kajol Jain
    >
    > thanks,
    > jirka
    >

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