linux-kernel - Re: [PATCH 0/3] perf: Support event alias in form foo-bar-baz

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Message-ID: <YexnfryaVyyYVuIi@kernel.org>
Date:   Sat, 22 Jan 2022 17:22:22 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ian Rogers <irogers@...gle.com>
Cc:     John Garry <john.garry@...wei.com>, peterz@...radead.org,
        mingo@...hat.com, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, jolsa@...hat.com,
        namhyung@...nel.org, kjain@...ux.ibm.com,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        linuxarm@...wei.com, liuqi115@...wei.com,
        zhangshaokun@...ilicon.com
Subject: Re: [PATCH 0/3] perf: Support event alias in form foo-bar-baz

Em Mon, Jan 17, 2022 at 08:21:42AM -0800, Ian Rogers escreveu:
> On Mon, Jan 17, 2022 at 7:15 AM John Garry <john.garry@...wei.com> wrote:
> >
> > Currently event aliases in the form foo-bar-baz are not supported.
> >
> > The HiSilicon D06 platform has uncore event aliases in that form, and
> > using those aliases fail:
> >
> > $ ./perf list sdir-home-migrate
> >
> > List of pre-defined events (to be used in -e):
> >
> > uncore hha:
> >   sdir-home-migrate
> >  [Unit: hisi_sccl,hha]
> >
> > $ sudo ./perf stat -e sdir-home-migrate
> > event syntax error: 'sdir-home-migrate'
> >                         \___ parser error
> > Run 'perf list' for a list of valid events
> >
> >  Usage: perf stat [<options>] [<command>]
> >
> >  -e, --event <event>event selector. use 'perf list' to list available events
> >
> > This series added support for such an event alias form.
> >
> > I am no expert on l+y, so any and all review here would be appreciated,
> > especially the last patch which is marked as RFC (for that same reason).
> >
> > The series is based on acme perf/core @ 9bce13ea88f8.
> >
> > John Garry (3):
> >   perf parse-events: Support event alias in form foo-bar-baz
> >   perf test: Add pmu-events test for aliases with hyphens
> >   perf test: Add parse-events test for aliases with hyphens
> 
> The whole set:
> 
> Acked-by: Ian Rogers <irogers@...gle.com>
> 
> The additional code is no worse than the existing code. The testing is
> a great addition!

Indeed, thanks a lot!

Thanks, applied.

- Arnaldo

 
> Thanks,
> Ian
> 
> >  .../arch/test/test_soc/cpu/uncore.json        | 16 +++++
> >  tools/perf/tests/parse-events.c               | 49 ++++++++++++++
> >  tools/perf/tests/pmu-events.c                 | 32 +++++++++
> >  tools/perf/util/parse-events.c                | 67 ++++++++++++++++---
> >  tools/perf/util/parse-events.h                |  1 +
> >  tools/perf/util/parse-events.l                |  2 +
> >  tools/perf/util/parse-events.y                | 17 ++++-
> >  7 files changed, 171 insertions(+), 13 deletions(-)
> >
> > --
> > 2.26.2
> >

-- 

- Arnaldo