linux-kernel - Re: [PATCH v5 15/15] perf jevents: Run metric

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Date:   Fri, 3 Feb 2023 17:15:29 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ian Rogers <irogers@...gle.com>
Cc:     John Garry <john.g.garry@...cle.com>,
        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>,
        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 v5 15/15] perf jevents: Run metric_test.py at compile-time

Em Thu, Jan 26, 2023 at 03:36:45PM -0800, Ian Rogers escreveu:
> Add a target that generates a log file for running metric_test.py and
> make this a dependency on generating pmu-events.c. The log output is
> displayed if the test fails like (the test was modified to make it
> fail):
> 
> ```
>   TEST    /tmp/perf/pmu-events/metric_test.log
> F......
> ======================================================================
> FAIL: test_Brackets (__main__.TestMetricExpressions)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "tools/perf/pmu-events/metric_test.py", line 33, in test_Brackets
>     self.assertEqual((a * b + c).ToPerfJson(), 'a * b + d')
> AssertionError: 'a * b + c' != 'a * b + d'
> - a * b + c
> ?         ^
> + a * b + d

Added this:

diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
index 05806ecfc33c12a1..f533e76fb48002b7 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -38,6 +38,7 @@ arch/*/include/generated/
 trace/beauty/generated/
 pmu-events/pmu-events.c
 pmu-events/jevents
+pmu-events/metric_test.log
 feature/
 libapi/
 libbpf/
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index b7d9c42062300d04..bac9272682b759e9 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -1103,6 +1103,7 @@ clean:: $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean $(LIBSYMBOL)-clean $(
 		$(OUTPUT)util/intel-pt-decoder/inat-tables.c \
 		$(OUTPUT)tests/llvm-src-{base,kbuild,prologue,relocation}.c \
 		$(OUTPUT)pmu-events/pmu-events.c \
+		$(OUTPUT)pmu-events/metric_test.log \
 		$(OUTPUT)$(fadvise_advice_array) \
 		$(OUTPUT)$(fsconfig_arrays) \
 		$(OUTPUT)$(fsmount_arrays) \