linux-kernel - Re: [PATCH] perf test: Add perf_event_attr tests for the arm

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Date:   Sat, 5 Mar 2022 16:00:39 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     James Clark <james.clark@....com>
Cc:     German Gomez <german.gomez@....com>, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>, netdev@...r.kernel.org,
        bpf@...r.kernel.org
Subject: Re: [PATCH] perf test: Add perf_event_attr tests for the arm_spe
 event

Em Mon, Feb 28, 2022 at 03:05:21PM +0000, James Clark escreveu:
> 
> 
> On 26/01/2022 16:07, German Gomez wrote:
> > Adds a couple of perf_event_attr tests for the fix introduced in [1].
> > The tests check that the correct sample_period value is set in the
> > struct perf_event_attr of the arm_spe events.
> > 
> > [1]: https://lore.kernel.org/all/20220118144054.2541-1-german.gomez@arm.com/
> > 
> > Signed-off-by: German Gomez <german.gomez@....com>
> 
> Reviewed-by: James Clark <james.clark@....com>

Thanks, applied.

- Arnaldo

 
> > ---
> >  tools/perf/tests/attr/README                  |  2 +
> >  tools/perf/tests/attr/base-record-spe         | 40 +++++++++++++++++++
> >  tools/perf/tests/attr/test-record-spe-period  | 12 ++++++
> >  .../tests/attr/test-record-spe-period-term    | 12 ++++++
> >  4 files changed, 66 insertions(+)
> >  create mode 100644 tools/perf/tests/attr/base-record-spe
> >  create mode 100644 tools/perf/tests/attr/test-record-spe-period
> >  create mode 100644 tools/perf/tests/attr/test-record-spe-period-term
> > 
> > diff --git a/tools/perf/tests/attr/README b/tools/perf/tests/attr/README
> > index 1116fc6bf2ac..454505d343fa 100644
> > --- a/tools/perf/tests/attr/README
> > +++ b/tools/perf/tests/attr/README
> > @@ -58,6 +58,8 @@ Following tests are defined (with perf commands):
> >    perf record -c 100 -P kill                    (test-record-period)
> >    perf record -c 1 --pfm-events=cycles:period=2 (test-record-pfm-period)
> >    perf record -R kill                           (test-record-raw)
> > +  perf record -c 2 -e arm_spe_0// -- kill       (test-record-spe-period)
> > +  perf record -e arm_spe_0/period=3/ -- kill    (test-record-spe-period-term)
> >    perf stat -e cycles kill                      (test-stat-basic)
> >    perf stat kill                                (test-stat-default)
> >    perf stat -d kill                             (test-stat-detailed-1)
> > diff --git a/tools/perf/tests/attr/base-record-spe b/tools/perf/tests/attr/base-record-spe
> > new file mode 100644
> > index 000000000000..08fa96b59240
> > --- /dev/null
> > +++ b/tools/perf/tests/attr/base-record-spe
> > @@ -0,0 +1,40 @@
> > +[event]
> > +fd=*
> > +group_fd=-1
> > +flags=*
> > +cpu=*
> > +type=*
> > +size=*
> > +config=*
> > +sample_period=*
> > +sample_type=*
> > +read_format=*
> > +disabled=*
> > +inherit=*
> > +pinned=*
> > +exclusive=*
> > +exclude_user=*
> > +exclude_kernel=*
> > +exclude_hv=*
> > +exclude_idle=*
> > +mmap=*
> > +comm=*
> > +freq=*
> > +inherit_stat=*
> > +enable_on_exec=*
> > +task=*
> > +watermark=*
> > +precise_ip=*
> > +mmap_data=*
> > +sample_id_all=*
> > +exclude_host=*
> > +exclude_guest=*
> > +exclude_callchain_kernel=*
> > +exclude_callchain_user=*
> > +wakeup_events=*
> > +bp_type=*
> > +config1=*
> > +config2=*
> > +branch_sample_type=*
> > +sample_regs_user=*
> > +sample_stack_user=*
> > diff --git a/tools/perf/tests/attr/test-record-spe-period b/tools/perf/tests/attr/test-record-spe-period
> > new file mode 100644
> > index 000000000000..75f8c9cd8e3f
> > --- /dev/null
> > +++ b/tools/perf/tests/attr/test-record-spe-period
> > @@ -0,0 +1,12 @@
> > +[config]
> > +command = record
> > +args    = --no-bpf-event -c 2 -e arm_spe_0// -- kill >/dev/null 2>&1
> > +ret     = 1
> > +arch    = aarch64
> > +
> > +[event-10:base-record-spe]
> > +sample_period=2
> > +freq=0
> > +
> > +# dummy event
> > +[event-1:base-record-spe]
> > diff --git a/tools/perf/tests/attr/test-record-spe-period-term b/tools/perf/tests/attr/test-record-spe-period-term
> > new file mode 100644
> > index 000000000000..8f60a4fec657
> > --- /dev/null
> > +++ b/tools/perf/tests/attr/test-record-spe-period-term
> > @@ -0,0 +1,12 @@
> > +[config]
> > +command = record
> > +args    = --no-bpf-event -e arm_spe_0/period=3/ -- kill >/dev/null 2>&1
> > +ret     = 1
> > +arch    = aarch64
> > +
> > +[event-10:base-record-spe]
> > +sample_period=3
> > +freq=0
> > +
> > +# dummy event
> > +[event-1:base-record-spe]

-- 

- Arnaldo