From: Ian Rogers <irogers@google.com>
To: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
Jiri Olsa <jolsa@redhat.com>,
Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>,
Namhyung Kim <namhyung@kernel.org>, Leo Yan <leo.yan@linaro.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH V1 09/23] perf auxtrace: Record whether an auxtrace mmap is needed
Date: Thu, 5 May 2022 16:28:53 -0700 [thread overview]
Message-ID: <CAP-5=fXxjJfb+Cm3ZJjKU7P266QUDB8ZVBPJKtf5-eAh9a=NpA@mail.gmail.com> (raw)
In-Reply-To: <20220505165639.361733-10-adrian.hunter@intel.com>
On Thu, May 5, 2022 at 9:57 AM Adrian Hunter <adrian.hunter@intel.com> wrote:
>
> Add a flag needs_auxtrace_mmap to record whether an auxtrace mmap is
> needed, in preparation for correctly determining whether or not an
> auxtrace mmap is needed.
>
> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Thanks,
Ian
> ---
> tools/perf/arch/arm/util/cs-etm.c | 1 +
> tools/perf/arch/arm64/util/arm-spe.c | 1 +
> tools/perf/arch/s390/util/auxtrace.c | 1 +
> tools/perf/arch/x86/util/intel-bts.c | 1 +
> tools/perf/arch/x86/util/intel-pt.c | 1 +
> tools/perf/util/evsel.h | 1 +
> 6 files changed, 6 insertions(+)
>
> diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c
> index 11c71aa219f7..1b54638d53b0 100644
> --- a/tools/perf/arch/arm/util/cs-etm.c
> +++ b/tools/perf/arch/arm/util/cs-etm.c
> @@ -319,6 +319,7 @@ static int cs_etm_recording_options(struct auxtrace_record *itr,
> }
> evsel->core.attr.freq = 0;
> evsel->core.attr.sample_period = 1;
> + evsel->needs_auxtrace_mmap = true;
> cs_etm_evsel = evsel;
> opts->full_auxtrace = true;
> }
> diff --git a/tools/perf/arch/arm64/util/arm-spe.c b/tools/perf/arch/arm64/util/arm-spe.c
> index e8b577d33e53..6f4db2ac5420 100644
> --- a/tools/perf/arch/arm64/util/arm-spe.c
> +++ b/tools/perf/arch/arm64/util/arm-spe.c
> @@ -160,6 +160,7 @@ static int arm_spe_recording_options(struct auxtrace_record *itr,
> }
> evsel->core.attr.freq = 0;
> evsel->core.attr.sample_period = arm_spe_pmu->default_config->sample_period;
> + evsel->needs_auxtrace_mmap = true;
> arm_spe_evsel = evsel;
> opts->full_auxtrace = true;
> }
> diff --git a/tools/perf/arch/s390/util/auxtrace.c b/tools/perf/arch/s390/util/auxtrace.c
> index 0db5c58c98e8..5068baa3e092 100644
> --- a/tools/perf/arch/s390/util/auxtrace.c
> +++ b/tools/perf/arch/s390/util/auxtrace.c
> @@ -98,6 +98,7 @@ struct auxtrace_record *auxtrace_record__init(struct evlist *evlist,
> evlist__for_each_entry(evlist, pos) {
> if (pos->core.attr.config == PERF_EVENT_CPUM_SF_DIAG) {
> diagnose = 1;
> + pos->needs_auxtrace_mmap = true;
> break;
> }
> }
> diff --git a/tools/perf/arch/x86/util/intel-bts.c b/tools/perf/arch/x86/util/intel-bts.c
> index d68a0f48e41e..bcccfbade5c6 100644
> --- a/tools/perf/arch/x86/util/intel-bts.c
> +++ b/tools/perf/arch/x86/util/intel-bts.c
> @@ -129,6 +129,7 @@ static int intel_bts_recording_options(struct auxtrace_record *itr,
> }
> evsel->core.attr.freq = 0;
> evsel->core.attr.sample_period = 1;
> + evsel->needs_auxtrace_mmap = true;
> intel_bts_evsel = evsel;
> opts->full_auxtrace = true;
> }
> diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c
> index 38ec2666ec12..2eaac4638aab 100644
> --- a/tools/perf/arch/x86/util/intel-pt.c
> +++ b/tools/perf/arch/x86/util/intel-pt.c
> @@ -649,6 +649,7 @@ static int intel_pt_recording_options(struct auxtrace_record *itr,
> evsel->core.attr.freq = 0;
> evsel->core.attr.sample_period = 1;
> evsel->no_aux_samples = true;
> + evsel->needs_auxtrace_mmap = true;
> intel_pt_evsel = evsel;
> opts->full_auxtrace = true;
> }
> diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
> index 45d674812239..544fbed98df1 100644
> --- a/tools/perf/util/evsel.h
> +++ b/tools/perf/util/evsel.h
> @@ -124,6 +124,7 @@ struct evsel {
> bool merged_stat;
> bool reset_group;
> bool errored;
> + bool needs_auxtrace_mmap;
> struct hashmap *per_pkg_mask;
> int err;
> struct {
> --
> 2.25.1
>
next prev parent reply other threads:[~2022-05-05 23:29 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-05 16:56 [PATCH V1 00/23] perf intel-pt: Better support for perf record --cpu Adrian Hunter
2022-05-05 16:56 ` [PATCH V1 01/23] perf intel-pt: Add a test for system-wide side band Adrian Hunter
2022-05-05 22:37 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 02/23] libperf evsel: Add perf_evsel__enable_thread() Adrian Hunter
2022-05-05 22:48 ` Ian Rogers
2022-05-06 7:18 ` Adrian Hunter
2022-05-05 16:56 ` [PATCH V1 03/23] perf evlist: Use libperf functions in evlist__enable_event_idx() Adrian Hunter
2022-05-05 22:58 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 04/23] perf auxtrace: Move evlist__enable_event_idx() to auxtrace.c Adrian Hunter
2022-05-05 23:06 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 05/23] perf auxtrace: Do not mix up mmap idx Adrian Hunter
2022-05-05 23:08 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 06/23] libperf evlist: Remove ->idx() per_cpu parameter Adrian Hunter
2022-05-05 23:08 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 07/23] libperf evlist: Move ->idx() into mmap_per_evsel() Adrian Hunter
2022-05-05 23:09 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 08/23] libperf evlist: Add evsel as a parameter to ->idx() Adrian Hunter
2022-05-05 23:27 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 09/23] perf auxtrace: Record whether an auxtrace mmap is needed Adrian Hunter
2022-05-05 23:28 ` Ian Rogers [this message]
2022-05-05 16:56 ` [PATCH V1 10/23] perf auxtrace: Add mmap_needed to auxtrace_mmap_params Adrian Hunter
2022-05-05 23:40 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 11/23] perf auxtrace: Remove auxtrace_mmap_params__set_idx() per_cpu parameter Adrian Hunter
2022-05-05 22:13 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 12/23] perf evlist: Factor out evlist__dummy_event() Adrian Hunter
2022-05-05 23:42 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 13/23] perf evlist: Add evlist__add_system_wide_dummy() Adrian Hunter
2022-05-05 23:56 ` Ian Rogers
2022-05-06 8:14 ` Adrian Hunter
2022-05-06 8:34 ` Ian Rogers
2022-05-06 9:27 ` Adrian Hunter
2022-05-05 16:56 ` [PATCH V1 14/23] perf record: Use evlist__add_system_wide_dummy() in record__config_text_poke() Adrian Hunter
2022-05-05 23:57 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 15/23] perf intel-pt: Use evlist__add_system_wide_dummy() for switch tracking Adrian Hunter
2022-05-05 23:58 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 16/23] perf intel-pt: Track sideband system-wide when needed Adrian Hunter
2022-05-06 0:01 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 17/23] perf tools: Allow all_cpus to be a superset of user_requested_cpus Adrian Hunter
2022-05-05 16:56 ` [PATCH V1 18/23] libperf evlist: Allow mixing per-thread and per-cpu mmaps Adrian Hunter
2022-05-06 0:09 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 19/23] libperf evlist: Check nr_mmaps is correct Adrian Hunter
2022-05-06 0:13 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 20/23] perf stat: Add requires_cpu flag for uncore Adrian Hunter
2022-05-06 0:50 ` Ian Rogers
2022-05-06 0:52 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 21/23] libperf evsel: Add comments for booleans Adrian Hunter
2022-05-06 0:55 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 22/23] perf tools: Allow system-wide events to keep their own CPUs Adrian Hunter
2022-05-06 1:00 ` Ian Rogers
2022-05-05 16:56 ` [PATCH V1 23/23] perf tools: Allow system-wide events to keep their own threads Adrian Hunter
2022-05-06 0:51 ` Ian Rogers
2022-05-06 1:06 ` [PATCH V1 00/23] perf intel-pt: Better support for perf record --cpu Ian Rogers
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