On Thu, Jul 2, 2020 at 11:57 PM Kajol Jain <kj...@linux.ibm.com> wrote:
>
> Added nest imc metric events.
Acked-by: Ian Rogers <irog...@google.com>
> Signed-off-by: Kajol Jain <kj...@linux.ibm.com>
> ---
> .../arch/powerpc/power9/nest_metrics.json | 35 +++++++++++++++++++
> 1 file changed, 35 insertions(+)
>
> diff --git a/tools/perf/pmu-events/arch/powerpc/power9/nest_metrics.json
> b/tools/perf/pmu-events/arch/powerpc/power9/nest_metrics.json
> index c121e526442a..8383a37647ad 100644
> --- a/tools/perf/pmu-events/arch/powerpc/power9/nest_metrics.json
> +++ b/tools/perf/pmu-events/arch/powerpc/power9/nest_metrics.json
> @@ -15,5 +15,40 @@
> "MetricExpr": "(hv_24x7@PM_PB_CYC\\,chip\\=?@ )",
> "MetricName": "PowerBUS_Frequency",
> "ScaleUnit": "2.5e-7GHz"
> + },
> + {
> + "MetricExpr" : "nest_mcs01_imc@PM_MCS01_128B_RD_DISP_PORT01@ +
> nest_mcs01_imc@PM_MCS01_128B_RD_DISP_PORT23@",
> + "MetricName" : "mcs01-read",
> + "MetricGroup" : "memory_bw",
> + "ScaleUnit": "6.1e-5MB"
nit: I'm guessing this is from:
64.0/(1024.0*1024.0) = 6.103515625e-05
and for reference:
64.0/(1000.0*1000.0) = 6.3999999999999997e-05
should the unit be MiB?
https://en.wikipedia.org/wiki/Kibibyte
Searching around I only see knightslanding using MiB but it seems to
be using it in the 1000^2 case which probably means it should be MB:
knightslanding/uncore-memory.json: "ScaleUnit": "6.4e-05MiB"
Given there is some confusion I wonder if it makes sense to just make
this 0.015625B and then we have a utility function that selects the
best unit for "bytes" with config options similar to --big-num?
Thanks,
Ian
> + },
> + {
> + "MetricExpr" : "nest_mcs23_imc@PM_MCS23_128B_RD_DISP_PORT01@ +
> nest_mcs23_imc@PM_MCS23_128B_RD_DISP_PORT23@",
> + "MetricName" : "mcs23-read",
> + "MetricGroup" : "memory_bw",
> + "ScaleUnit": "6.1e-5MB"
> + },
> + {
> + "MetricExpr" : "nest_mcs01_imc@PM_MCS01_128B_WR_DISP_PORT01@ +
> nest_mcs01_imc@PM_MCS01_128B_WR_DISP_PORT23@",
> + "MetricName" : "mcs01-write",
> + "MetricGroup" : "memory_bw",
> + "ScaleUnit": "6.1e-5MB"
> + },
> + {
> + "MetricExpr" : "nest_mcs23_imc@PM_MCS23_128B_WR_DISP_PORT01@ +
> nest_mcs23_imc@PM_MCS23_128B_WR_DISP_PORT23@",
> + "MetricName" : "mcs23-write",
> + "MetricGroup" : "memory-bandwidth",
> + "ScaleUnit": "6.1e-5MB"
> + },
> + {
> + "MetricExpr" : "nest_powerbus0_imc@PM_PB_CYC@",
> + "MetricName" : "powerbus_freq",
> + "ScaleUnit": "1e-9GHz"
> + },
> + {
> + "MetricExpr" : "(nest_mcs01_imc@PM_MCS01_128B_RD_DISP_PORT01@ +
> nest_mcs01_imc@PM_MCS01_128B_RD_DISP_PORT23@ +
> nest_mcs23_imc@PM_MCS23_128B_RD_DISP_PORT01@ +
> nest_mcs23_imc@PM_MCS23_128B_RD_DISP_PORT23@ +
> nest_mcs01_imc@PM_MCS01_128B_WR_DISP_PORT01@ +
> nest_mcs01_imc@PM_MCS01_128B_WR_DISP_PORT23@ +
> nest_mcs23_imc@PM_MCS23_128B_WR_DISP_PORT01@ +
> nest_mcs23_imc@PM_MCS23_128B_WR_DISP_PORT23@)",
> + "MetricName" : "Memory-bandwidth-MCS",
> + "MetricGroup" : "memory_bw",
> + "ScaleUnit": "6.1e-5MB"
> }
> ]
> --
> 2.17.1
>
