linux-kernel - Re: [PATCH] perf vendor events power10: Add metric events json file for power10 platform

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Message-ID: <20211007134750.GA243632@li-24c3614c-2adc-11b2-a85c-85f334518bdb.ibm.com>
Date:   Thu, 7 Oct 2021 08:47:50 -0500
From:   "Paul A. Clarke" <pc@...ibm.com>
To:     Kajol Jain <kjain@...ux.ibm.com>
Cc:     acme@...nel.org, maddy@...ux.vnet.ibm.com, rnsastry@...ux.ibm.com,
        jolsa@...hat.com, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org, atrajeev@...ux.vnet.ibm.com,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH] perf vendor events power10: Add metric events json file
 for power10 platform

On Wed, Oct 06, 2021 at 12:32:48PM -0500, Paul A. Clarke wrote:
> > +    {
> > +        "BriefDescription": "Average cycles per instruction when the instruction finishes at dispatch",
> 
> I'm not sure what that means.

After doing a bit of research, I think it might be a bit more clear as:
"Average cycles per instruction when the NTF instruction finishes at dispatch"

> > +        "MetricExpr": "PM_EXEC_STALL_FIN_AT_DISP / PM_RUN_INST_CMPL",
> > +        "MetricGroup": "CPI",
> > +        "MetricName": "FIN_AT_DISP_STALL_CPI"
> > +    },

PC