linux-kernel - Re: [PATCH v4 02/12] perf jevents metric: Add ability to rewrite metrics in terms of others

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Message-ID: <CAP-5=fUrHqAtP-yRDYi4G4oo-PX-2YF8tyB=BBk2t0iM_U3__g@mail.gmail.com>
Date:   Thu, 26 Jan 2023 11:10:01 -0800
From:   Ian Rogers <irogers@...gle.com>
To:     John Garry <john.g.garry@...cle.com>
Cc:     Will Deacon <will@...nel.org>, James Clark <james.clark@....com>,
        Mike Leach <mike.leach@...aro.org>,
        Leo Yan <leo.yan@...aro.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Kim Phillips <kim.phillips@....com>,
        Florian Fischer <florian.fischer@...q.space>,
        Ravi Bangoria <ravi.bangoria@....com>,
        Xing Zhengjun <zhengjun.xing@...ux.intel.com>,
        Rob Herring <robh@...nel.org>,
        Kang Minchul <tegongkang@...il.com>,
        linux-arm-kernel@...ts.infradead.org,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sandipan Das <sandipan.das@....com>,
        Jing Zhang <renyu.zj@...ux.alibaba.com>,
        linuxppc-dev@...ts.ozlabs.org, Kajol Jain <kjain@...ux.ibm.com>,
        Stephane Eranian <eranian@...gle.com>,
        Perry Taylor <perry.taylor@...el.com>,
        Caleb Biggers <caleb.biggers@...el.com>
Subject: Re: [PATCH v4 02/12] perf jevents metric: Add ability to rewrite
 metrics in terms of others

On Thu, Jan 26, 2023 at 7:59 AM John Garry <john.g.garry@...cle.com> wrote:
>
> On 26/01/2023 01:18, Ian Rogers wrote:
> > Add RewriteMetricsInTermsOfOthers that iterates over pairs of names
> > and expressions trying to replace an expression, within the current
> > expression, with its name.
> >
> > Signed-off-by: Ian Rogers <irogers@...gle.com>
>
> hmmm ... did you test this for many python versions?
>
> Maybe this patch causes this error:
>
> Traceback (most recent call last):
>   File "pmu-events/jevents.py", line 7, in <module>
>     import metric
>   File "/home/john/acme/tools/perf/pmu-events/metric.py", line 549, in
> <module>
>     def RewriteMetricsInTermsOfOthers(metrics: list[Tuple[str, Expression]]
> TypeError: 'type' object is not subscriptable
> make[3]: *** [pmu-events/Build:26: pmu-events/pmu-events.c] Error 1
> make[2]: *** [Makefile.perf:676: pmu-events/pmu-events-in.o] Error 2
> make[2]: *** Waiting for unfinished jobs....
>
> I have python 3.6.15
>
> Thanks,
> John

Apologies, I have to test python3.6 with docker and so if I think the
change is small enough.. My error, will spin v5.

Thanks,
Ian

>