Re: [PATCH v3 07/18] perf stat: Remove hard coded shadow metrics

[Namhyung Kim <namhyung@kernel.org>]

On Tue, Nov 11, 2025 at 09:23:47AM -0800, Ian Rogers wrote:
> On Mon, Nov 10, 2025 at 11:02 PM Namhyung Kim <namhyung@kernel.org> wrote:
> >
> > On Mon, Nov 10, 2025 at 08:04:06PM -0800, Ian Rogers wrote:
> > > Now that the metrics are encoded in common json the hard coded
> > > printing means the metrics are shown twice. Remove the hard coded
> > > version.
> > >
> > > This means that when specifying events, and those events correspond to
> > > a hard coded metric, the metric will no longer be displayed. The
> > > metric will be displayed if the metric is requested. Due to the adhoc
> > > printing in the previous approach it was often found frustrating, the
> > > new approach avoids this.
> > >
> > > The default perf stat output on an alderlake now looks like:
> > > ```
> > > $ perf stat -a -- sleep 1
> > >
> > >  Performance counter stats for 'system wide':
> > >
> > >              7,932      context-switches                 #    281.7 cs/sec  cs_per_second
> > >              TopdownL1 (cpu_core)                 #     10.3 %  tma_bad_speculation
> > >                                                   #     17.3 %  tma_frontend_bound
> > >              TopdownL1 (cpu_core)                 #     37.3 %  tma_backend_bound
> > >                                                   #     35.2 %  tma_retiring
> > >              5,901      page-faults                      #    209.5 faults/sec  page_faults_per_second
> > >        418,955,116      cpu_atom/cpu-cycles/             #      0.0 GHz  cycles_frequency       (49.77%)
> > >      1,113,933,476      cpu_core/cpu-cycles/             #      0.0 GHz  cycles_frequency
> > >                                                   #     14.6 %  tma_bad_speculation
> > >                                                   #      8.5 %  tma_retiring             (50.17%)
> > >                                                   #     41.8 %  tma_backend_bound
> > >                                                   #     35.1 %  tma_frontend_bound       (50.31%)
> >
> > I'd like to merge the alignment fix for this.
> >
> > https://lore.kernel.org/r/20251106072834.1750880-1-namhyung@kernel.org
> 
> I'm happy with that fix but if merges before these changes then I need
> to rewrite all my commit messages :-) Not a big deal, I'll add my tag.

I understand your concern.  I can merge the change after applying this
series.

Thanks,
Namhyung