linux-kernel - Re: [PATCH] perf test: Fix perf stat JSON output test

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Date:   Fri, 26 May 2023 22:48:50 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ian Rogers <irogers@...gle.com>
Cc:     K Prateek Nayak <kprateek.nayak@....com>,
        Namhyung Kim <namhyung@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-perf-users@...r.kernel.org
Subject: Re: [PATCH] perf test: Fix perf stat JSON output test

Em Fri, May 26, 2023 at 03:41:29PM -0700, Ian Rogers escreveu:
> On Wed, May 24, 2023 at 8:01 PM K Prateek Nayak <kprateek.nayak@....com> wrote:
> >
> > Hello Namhyung,
> >
> > On 5/25/2023 2:36 AM, Namhyung Kim wrote:
> > > The recent --per-cache option test caused a problem.  According to
> > > the option name, I think it should check args.per_cache instead of
> > > args.per_cache_instance.
> > >
> > >   $ sudo ./perf test -v 99
> > >    99: perf stat JSON output linter                                    :
> > >   --- start ---
> > >   test child forked, pid 3086101
> > >   Checking json output: no args [Success]
> > >   Checking json output: system wide [Success]
> > >   Checking json output: interval [Success]
> > >   Checking json output: event [Success]
> > >   Checking json output: per thread [Success]
> > >   Checking json output: per node [Success]
> > >   Checking json output: system wide no aggregation [Success]
> > >   Checking json output: per core [Success]
> > >   Checking json output: per cache_instance Test failed for input:
> > >   ...
> > >   Traceback (most recent call last):
> > >     File "linux/tools/perf/tests/shell/lib/perf_json_output_lint.py", line 88, in <module>
> > >       elif args.per_core or args.per_socket or args.per_node or args.per_die or args.per_cache_instance:
> > >   AttributeError: 'Namespace' object has no attribute 'per_cache_instance'
> > >   test child finished with -1
> > >   ---- end ----
> > >   perf stat JSON output linter: FAILED!
> > >
> > > Fixes: bfce728db317 ("pert tests: Add tests for new "perf stat --per-cache" aggregation option")
> >
> > Another oversight on my part. Thank you for fixing this :)
> >
> >    $ sudo perf test -v 99
> >    99: perf stat JSON output linter                                    :
> >    --- start ---
> >    test child forked, pid 25046
> >    Checking json output: no args [Success]
> >    Checking json output: system wide [Success]
> >    Checking json output: interval [Success]
> >    Checking json output: event [Success]
> >    Checking json output: per thread [Success]
> >    Checking json output: per node [Success]
> >    Checking json output: system wide no aggregation [Success]
> >    Checking json output: per core [Success]
> >    Checking json output: per cache_instance [Success]
> >    Checking json output: per die [Success]
> >    Checking json output: per socket [Success]
> >    test child finished with 0
> >    ---- end ----
> >    perf stat JSON output linter: Ok
> >
> > Tested-by: K Prateek Nayak <kprateek.nayak@....com>
> 
> Thanks Namhyung and Prateek, Arnaldo could we get this in
> perf-tools-next so that the failing test goes away?
> 
> Acked-by: Ian Rogers <irogers@...gle.com>

Applied and pushed to perf-tools-next, please continue from there.

⬢[acme@...lbox perf-tools-next]$ git log --oneline -10
540c910c65a94fb4 (HEAD -> perf-tools-next) perf test: Fix perf stat JSON output test
5cebb33fd929dc67 perf tests: Organize cpu_map tests into a single suite
237d41d4a2d7d45e perf cpumap: Add intersect function
6ac2230b55d392e6 perf vendor events intel: Add metricgroup descriptions for all models
66c6e0c100277175 perf jevents: Add support for metricgroup descriptions
bfce728db3179042 pert tests: Add tests for new "perf stat --per-cache" aggregation option
aab667ca8837e45f perf stat: Add "--per-cache" aggregation option and document it
4b87406a3b590888 perf stat record: Save cache level information
995ed074b829f293 perf stat: Setup the foundation to allow aggregation based on cache topology
2b72cec9eef19d73 perf: Extract building cache level for a CPU into separate function
⬢[acme@...lbox perf-tools-next]$

- Arnaldo