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From: Namhyung Kim <namhyung@kernel.org>
To: Ian Rogers <irogers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@kernel.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Kan Liang <kan.liang@linux.intel.com>,
	James Clark <james.clark@linaro.org>,
	Ze Gao <zegao2021@gmail.com>, Weilin Wang <weilin.wang@intel.com>,
	Dominique Martinet <asmadeus@codewreck.org>,
	Jean-Philippe Romain <jean-philippe.romain@foss.st.com>,
	Junhao He <hejunhao3@huawei.com>,
	linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
	bpf@vger.kernel.org, Aditya Bodkhe <Aditya.Bodkhe1@ibm.com>,
	Atish Patra <atishp@rivosinc.com>, Leo Yan <leo.yan@arm.com>,
	Beeman Strong <beeman@rivosinc.com>,
	Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: Re: [PATCH v5 4/4] perf parse-events: Reapply "Prefer sysfs/JSON hardware events over legacy"
Date: Fri, 10 Jan 2025 11:40:27 -0800	[thread overview]
Message-ID: <Z4F3qxFaYnMTtPw7@google.com> (raw)
In-Reply-To: <20250109222109.567031-5-irogers@google.com>

On Thu, Jan 09, 2025 at 02:21:09PM -0800, Ian Rogers wrote:
> Originally posted and merged from:
> https://lore.kernel.org/r/20240416061533.921723-10-irogers@google.com
> This reverts commit 4f1b067359ac8364cdb7f9fda41085fa85789d0f although
> the patch is now smaller due to related fixes being applied in commit
> 22a4db3c3603 ("perf evsel: Add alternate_hw_config and use in
> evsel__match").
> The original commit message was:
> 
> It was requested that RISC-V be able to add events to the perf tool so
> the PMU driver didn't need to map legacy events to config encodings:
> https://lore.kernel.org/lkml/20240217005738.3744121-1-atishp@rivosinc.com/
> 
> This change makes the priority of events specified without a PMU the
> same as those specified with a PMU, namely sysfs and JSON events are
> checked first before using the legacy encoding.

I'm still not convinced why we need this change despite of these
troubles.  If it's because RISC-V cannot define the lagacy hardware
events in the kernel driver, why not using a different name in JSON and
ask users to use the name specifically?  Something like:

  $ perf record -e riscv-cycles ...

Thanks,
Namhyung

> 
> The hw_term is made more generic as a hardware_event that encodes a
> pair of string and int value, allowing parse_events_multi_pmu_add to
> fall back on a known encoding when the sysfs/JSON adding fails for
> core events. As this covers PE_VALUE_SYM_HW, that token is removed and
> related code simplified.
> 
> Signed-off-by: Ian Rogers <irogers@google.com>
> Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
> Tested-by: Atish Patra <atishp@rivosinc.com>
> Tested-by: James Clark <james.clark@linaro.org>
> Tested-by: Leo Yan <leo.yan@arm.com>
> Cc: Adrian Hunter <adrian.hunter@intel.com>
> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
> Cc: Beeman Strong <beeman@rivosinc.com>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Jiri Olsa <jolsa@kernel.org>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Cc: Namhyung Kim <namhyung@kernel.org>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> ---
>  tools/perf/util/parse-events.c | 26 +++++++++---
>  tools/perf/util/parse-events.l | 76 +++++++++++++++++-----------------
>  tools/perf/util/parse-events.y | 60 ++++++++++++++++++---------
>  3 files changed, 98 insertions(+), 64 deletions(-)
> 
> diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
> index 1e23faa364b1..3a60fca53cfa 100644
> --- a/tools/perf/util/parse-events.c
> +++ b/tools/perf/util/parse-events.c
> @@ -1545,8 +1545,8 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
>  	struct list_head *list = NULL;
>  	struct perf_pmu *pmu = NULL;
>  	YYLTYPE *loc = loc_;
> -	int ok = 0;
> -	const char *config;
> +	int ok = 0, core_ok = 0;
> +	const char *tmp;
>  	struct parse_events_terms parsed_terms;
>  
>  	*listp = NULL;
> @@ -1559,15 +1559,15 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
>  			return ret;
>  	}
>  
> -	config = strdup(event_name);
> -	if (!config)
> +	tmp = strdup(event_name);
> +	if (!tmp)
>  		goto out_err;
>  
>  	if (parse_events_term__num(&term,
>  				   PARSE_EVENTS__TERM_TYPE_USER,
> -				   config, /*num=*/1, /*novalue=*/true,
> +				   tmp, /*num=*/1, /*novalue=*/true,
>  				   loc, /*loc_val=*/NULL) < 0) {
> -		zfree(&config);
> +		zfree(&tmp);
>  		goto out_err;
>  	}
>  	list_add_tail(&term->list, &parsed_terms.terms);
> @@ -1598,6 +1598,8 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
>  			pr_debug("%s -> %s/%s/\n", event_name, pmu->name, sb.buf);
>  			strbuf_release(&sb);
>  			ok++;
> +			if (pmu->is_core)
> +				core_ok++;
>  		}
>  	}
>  
> @@ -1614,6 +1616,18 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
>  		}
>  	}
>  
> +	if (hw_config != PERF_COUNT_HW_MAX && !core_ok) {
> +		/*
> +		 * The event wasn't found on core PMUs but it has a hardware
> +		 * config version to try.
> +		 */
> +		if (!parse_events_add_numeric(parse_state, list,
> +						PERF_TYPE_HARDWARE, hw_config,
> +						const_parsed_terms,
> +						/*wildcard=*/true))
> +			ok++;
> +	}
> +
>  out_err:
>  	parse_events_terms__exit(&parsed_terms);
>  	if (ok)
> diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
> index bf7f73548605..29082a22ccc9 100644
> --- a/tools/perf/util/parse-events.l
> +++ b/tools/perf/util/parse-events.l
> @@ -113,12 +113,12 @@ do {								\
>  	yyless(0);						\
>  } while (0)
>  
> -static int sym(yyscan_t scanner, int type, int config)
> +static int sym(yyscan_t scanner, int config)
>  {
>  	YYSTYPE *yylval = parse_events_get_lval(scanner);
>  
> -	yylval->num = (type << 16) + config;
> -	return type == PERF_TYPE_HARDWARE ? PE_VALUE_SYM_HW : PE_VALUE_SYM_SW;
> +	yylval->num = config;
> +	return PE_VALUE_SYM_SW;
>  }
>  
>  static int term(yyscan_t scanner, enum parse_events__term_type type)
> @@ -129,13 +129,13 @@ static int term(yyscan_t scanner, enum parse_events__term_type type)
>  	return PE_TERM;
>  }
>  
> -static int hw_term(yyscan_t scanner, int config)
> +static int hw(yyscan_t scanner, int config)
>  {
>  	YYSTYPE *yylval = parse_events_get_lval(scanner);
>  	char *text = parse_events_get_text(scanner);
>  
> -	yylval->hardware_term.str = strdup(text);
> -	yylval->hardware_term.num = PERF_TYPE_HARDWARE + config;
> +	yylval->hardware_event.str = strdup(text);
> +	yylval->hardware_event.num = config;
>  	return PE_TERM_HW;
>  }
>  
> @@ -324,16 +324,16 @@ aux-output		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT); }
>  aux-action		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_ACTION); }
>  aux-sample-size		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE); }
>  metric-id		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_METRIC_ID); }
> -cpu-cycles|cycles				{ return hw_term(yyscanner, PERF_COUNT_HW_CPU_CYCLES); }
> -stalled-cycles-frontend|idle-cycles-frontend	{ return hw_term(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
> -stalled-cycles-backend|idle-cycles-backend	{ return hw_term(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
> -instructions					{ return hw_term(yyscanner, PERF_COUNT_HW_INSTRUCTIONS); }
> -cache-references				{ return hw_term(yyscanner, PERF_COUNT_HW_CACHE_REFERENCES); }
> -cache-misses					{ return hw_term(yyscanner, PERF_COUNT_HW_CACHE_MISSES); }
> -branch-instructions|branches			{ return hw_term(yyscanner, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
> -branch-misses					{ return hw_term(yyscanner, PERF_COUNT_HW_BRANCH_MISSES); }
> -bus-cycles					{ return hw_term(yyscanner, PERF_COUNT_HW_BUS_CYCLES); }
> -ref-cycles					{ return hw_term(yyscanner, PERF_COUNT_HW_REF_CPU_CYCLES); }
> +cpu-cycles|cycles				{ return hw(yyscanner, PERF_COUNT_HW_CPU_CYCLES); }
> +stalled-cycles-frontend|idle-cycles-frontend	{ return hw(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
> +stalled-cycles-backend|idle-cycles-backend	{ return hw(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
> +instructions					{ return hw(yyscanner, PERF_COUNT_HW_INSTRUCTIONS); }
> +cache-references				{ return hw(yyscanner, PERF_COUNT_HW_CACHE_REFERENCES); }
> +cache-misses					{ return hw(yyscanner, PERF_COUNT_HW_CACHE_MISSES); }
> +branch-instructions|branches			{ return hw(yyscanner, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
> +branch-misses					{ return hw(yyscanner, PERF_COUNT_HW_BRANCH_MISSES); }
> +bus-cycles					{ return hw(yyscanner, PERF_COUNT_HW_BUS_CYCLES); }
> +ref-cycles					{ return hw(yyscanner, PERF_COUNT_HW_REF_CPU_CYCLES); }
>  r{num_raw_hex}		{ return str(yyscanner, PE_RAW); }
>  r0x{num_raw_hex}	{ return str(yyscanner, PE_RAW); }
>  ,			{ return ','; }
> @@ -377,28 +377,28 @@ r0x{num_raw_hex}	{ return str(yyscanner, PE_RAW); }
>  <<EOF>>			{ BEGIN(INITIAL); }
>  }
>  
> -cpu-cycles|cycles				{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); }
> -stalled-cycles-frontend|idle-cycles-frontend	{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
> -stalled-cycles-backend|idle-cycles-backend	{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
> -instructions					{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS); }
> -cache-references				{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES); }
> -cache-misses					{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES); }
> -branch-instructions|branches			{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
> -branch-misses					{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES); }
> -bus-cycles					{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES); }
> -ref-cycles					{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES); }
> -cpu-clock					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK); }
> -task-clock					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK); }
> -page-faults|faults				{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS); }
> -minor-faults					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN); }
> -major-faults					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ); }
> -context-switches|cs				{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES); }
> -cpu-migrations|migrations			{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS); }
> -alignment-faults				{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); }
> -emulation-faults				{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
> -dummy						{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); }
> -bpf-output					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_BPF_OUTPUT); }
> -cgroup-switches					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CGROUP_SWITCHES); }
> +cpu-cycles|cycles				{ return hw(yyscanner, PERF_COUNT_HW_CPU_CYCLES); }
> +stalled-cycles-frontend|idle-cycles-frontend	{ return hw(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
> +stalled-cycles-backend|idle-cycles-backend	{ return hw(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
> +instructions					{ return hw(yyscanner, PERF_COUNT_HW_INSTRUCTIONS); }
> +cache-references				{ return hw(yyscanner, PERF_COUNT_HW_CACHE_REFERENCES); }
> +cache-misses					{ return hw(yyscanner, PERF_COUNT_HW_CACHE_MISSES); }
> +branch-instructions|branches			{ return hw(yyscanner, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
> +branch-misses					{ return hw(yyscanner, PERF_COUNT_HW_BRANCH_MISSES); }
> +bus-cycles					{ return hw(yyscanner, PERF_COUNT_HW_BUS_CYCLES); }
> +ref-cycles					{ return hw(yyscanner, PERF_COUNT_HW_REF_CPU_CYCLES); }
> +cpu-clock					{ return sym(yyscanner, PERF_COUNT_SW_CPU_CLOCK); }
> +task-clock					{ return sym(yyscanner, PERF_COUNT_SW_TASK_CLOCK); }
> +page-faults|faults				{ return sym(yyscanner, PERF_COUNT_SW_PAGE_FAULTS); }
> +minor-faults					{ return sym(yyscanner, PERF_COUNT_SW_PAGE_FAULTS_MIN); }
> +major-faults					{ return sym(yyscanner, PERF_COUNT_SW_PAGE_FAULTS_MAJ); }
> +context-switches|cs				{ return sym(yyscanner, PERF_COUNT_SW_CONTEXT_SWITCHES); }
> +cpu-migrations|migrations			{ return sym(yyscanner, PERF_COUNT_SW_CPU_MIGRATIONS); }
> +alignment-faults				{ return sym(yyscanner, PERF_COUNT_SW_ALIGNMENT_FAULTS); }
> +emulation-faults				{ return sym(yyscanner, PERF_COUNT_SW_EMULATION_FAULTS); }
> +dummy						{ return sym(yyscanner, PERF_COUNT_SW_DUMMY); }
> +bpf-output					{ return sym(yyscanner, PERF_COUNT_SW_BPF_OUTPUT); }
> +cgroup-switches					{ return sym(yyscanner, PERF_COUNT_SW_CGROUP_SWITCHES); }
>  
>  {lc_type}			{ return str(yyscanner, PE_LEGACY_CACHE); }
>  {lc_type}-{lc_op_result}	{ return str(yyscanner, PE_LEGACY_CACHE); }
> diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
> index f888cbb076d6..d2ef1890007e 100644
> --- a/tools/perf/util/parse-events.y
> +++ b/tools/perf/util/parse-events.y
> @@ -55,7 +55,7 @@ static void free_list_evsel(struct list_head* list_evsel)
>  %}
>  
>  %token PE_START_EVENTS PE_START_TERMS
> -%token PE_VALUE PE_VALUE_SYM_HW PE_VALUE_SYM_SW PE_TERM
> +%token PE_VALUE PE_VALUE_SYM_SW PE_TERM
>  %token PE_EVENT_NAME
>  %token PE_RAW PE_NAME
>  %token PE_MODIFIER_EVENT PE_MODIFIER_BP PE_BP_COLON PE_BP_SLASH
> @@ -65,11 +65,9 @@ static void free_list_evsel(struct list_head* list_evsel)
>  %token PE_DRV_CFG_TERM
>  %token PE_TERM_HW
>  %type <num> PE_VALUE
> -%type <num> PE_VALUE_SYM_HW
>  %type <num> PE_VALUE_SYM_SW
>  %type <mod> PE_MODIFIER_EVENT
>  %type <term_type> PE_TERM
> -%type <num> value_sym
>  %type <str> PE_RAW
>  %type <str> PE_NAME
>  %type <str> PE_LEGACY_CACHE
> @@ -85,6 +83,7 @@ static void free_list_evsel(struct list_head* list_evsel)
>  %type <list_terms> opt_pmu_config
>  %destructor { parse_events_terms__delete ($$); } <list_terms>
>  %type <list_evsel> event_pmu
> +%type <list_evsel> event_legacy_hardware
>  %type <list_evsel> event_legacy_symbol
>  %type <list_evsel> event_legacy_cache
>  %type <list_evsel> event_legacy_mem
> @@ -102,8 +101,8 @@ static void free_list_evsel(struct list_head* list_evsel)
>  %destructor { free_list_evsel ($$); } <list_evsel>
>  %type <tracepoint_name> tracepoint_name
>  %destructor { free ($$.sys); free ($$.event); } <tracepoint_name>
> -%type <hardware_term> PE_TERM_HW
> -%destructor { free ($$.str); } <hardware_term>
> +%type <hardware_event> PE_TERM_HW
> +%destructor { free ($$.str); } <hardware_event>
>  
>  %union
>  {
> @@ -118,10 +117,10 @@ static void free_list_evsel(struct list_head* list_evsel)
>  		char *sys;
>  		char *event;
>  	} tracepoint_name;
> -	struct hardware_term {
> +	struct hardware_event {
>  		char *str;
>  		u64 num;
> -	} hardware_term;
> +	} hardware_event;
>  }
>  %%
>  
> @@ -264,6 +263,7 @@ PE_EVENT_NAME event_def
>  event_def
>  
>  event_def: event_pmu |
> +	   event_legacy_hardware |
>  	   event_legacy_symbol |
>  	   event_legacy_cache sep_dc |
>  	   event_legacy_mem sep_dc |
> @@ -306,24 +306,45 @@ PE_NAME sep_dc
>  	$$ = list;
>  }
>  
> -value_sym:
> -PE_VALUE_SYM_HW
> +event_legacy_hardware:
> +PE_TERM_HW opt_pmu_config
> +{
> +	/* List of created evsels. */
> +	struct list_head *list = NULL;
> +	int err = parse_events_multi_pmu_add(_parse_state, $1.str, $1.num, $2, &list, &@1);
> +
> +	free($1.str);
> +	parse_events_terms__delete($2);
> +	if (err)
> +		PE_ABORT(err);
> +
> +	$$ = list;
> +}
>  |
> -PE_VALUE_SYM_SW
> +PE_TERM_HW sep_dc
> +{
> +	struct list_head *list;
> +	int err;
> +
> +	err = parse_events_multi_pmu_add(_parse_state, $1.str, $1.num, NULL, &list, &@1);
> +	free($1.str);
> +	if (err)
> +		PE_ABORT(err);
> +	$$ = list;
> +}
>  
>  event_legacy_symbol:
> -value_sym '/' event_config '/'
> +PE_VALUE_SYM_SW '/' event_config '/'
>  {
>  	struct list_head *list;
> -	int type = $1 >> 16;
> -	int config = $1 & 255;
>  	int err;
> -	bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE);
>  
>  	list = alloc_list();
>  	if (!list)
>  		YYNOMEM;
> -	err = parse_events_add_numeric(_parse_state, list, type, config, $3, wildcard);
> +	err = parse_events_add_numeric(_parse_state, list,
> +				/*type=*/PERF_TYPE_SOFTWARE, /*config=*/$1,
> +				$3, /*wildcard=*/false);
>  	parse_events_terms__delete($3);
>  	if (err) {
>  		free_list_evsel(list);
> @@ -332,18 +353,17 @@ value_sym '/' event_config '/'
>  	$$ = list;
>  }
>  |
> -value_sym sep_slash_slash_dc
> +PE_VALUE_SYM_SW sep_slash_slash_dc
>  {
>  	struct list_head *list;
> -	int type = $1 >> 16;
> -	int config = $1 & 255;
> -	bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE);
>  	int err;
>  
>  	list = alloc_list();
>  	if (!list)
>  		YYNOMEM;
> -	err = parse_events_add_numeric(_parse_state, list, type, config, /*head_config=*/NULL, wildcard);
> +	err = parse_events_add_numeric(_parse_state, list,
> +				/*type=*/PERF_TYPE_SOFTWARE, /*config=*/$1,
> +				/*head_config=*/NULL, /*wildcard=*/false);
>  	if (err)
>  		PE_ABORT(err);
>  	$$ = list;
> -- 
> 2.47.1.613.gc27f4b7a9f-goog
> 

  reply	other threads:[~2025-01-10 19:40 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-09 22:21 [PATCH v5 0/4] Prefer sysfs/JSON events also when no PMU is provided Ian Rogers
2025-01-09 22:21 ` [PATCH v5 1/4] perf evsel: Add pmu_name helper Ian Rogers
2025-01-09 22:21 ` [PATCH v5 2/4] perf stat: Fix find_stat for mixed legacy/non-legacy events Ian Rogers
2025-01-09 22:21 ` [PATCH v5 3/4] perf record: Skip don't fail for events that don't open Ian Rogers
2025-01-10  1:25   ` Namhyung Kim
2025-01-10  4:44     ` Ian Rogers
2025-01-10 18:55       ` Namhyung Kim
2025-01-10 19:18         ` Ian Rogers
2025-01-14 19:29           ` Namhyung Kim
2025-01-14 23:55             ` Ian Rogers
2025-01-15 22:14               ` Namhyung Kim
2025-01-15 22:40                 ` Ian Rogers
2025-01-10 14:18     ` Arnaldo Carvalho de Melo
2025-01-10 16:42       ` Ian Rogers
2025-01-10 19:26         ` Namhyung Kim
2025-01-10 21:33           ` Ian Rogers
2025-01-13 20:51             ` Namhyung Kim
2025-01-13 23:04               ` Ian Rogers
2025-01-15 17:31                 ` Namhyung Kim
2025-01-15 17:56                   ` Ian Rogers
2025-01-29 21:24                     ` Namhyung Kim
2025-01-09 22:21 ` [PATCH v5 4/4] perf parse-events: Reapply "Prefer sysfs/JSON hardware events over legacy" Ian Rogers
2025-01-10 19:40   ` Namhyung Kim [this message]
2025-01-10 19:52     ` Atish Kumar Patra
2025-01-13 20:56       ` Namhyung Kim
2025-01-10 22:15     ` Ian Rogers
2025-01-13 22:01       ` Namhyung Kim
2025-01-13 22:51         ` Ian Rogers
2025-01-14  2:31           ` Ian Rogers
2025-01-15 17:59             ` Namhyung Kim
2025-01-15 21:20               ` Ian Rogers
2025-01-29 21:55                 ` Namhyung Kim
2025-01-30  1:16                   ` Ian Rogers
2025-01-30  5:16                     ` Namhyung Kim
2025-01-30  6:03                       ` Ian Rogers
2025-01-31 22:28                         ` Namhyung Kim
2025-01-30  6:12                   ` Atish Kumar Patra
2025-01-31 22:42                     ` Namhyung Kim
2025-02-01  8:45                       ` Ian Rogers
2025-02-04  0:15                         ` Namhyung Kim
2025-02-04  0:41                           ` Ian Rogers
2025-02-05  1:57                             ` Namhyung Kim
2025-02-05  4:48                               ` Ian Rogers
2025-02-06  5:09                                 ` Namhyung Kim
2025-02-06  7:44                                   ` Ian Rogers
2025-02-07  4:44                                     ` Namhyung Kim
2025-02-07  6:15                                       ` Ian Rogers
2025-02-07 17:18                                         ` Atish Kumar Patra
2025-02-19 23:22                                         ` Namhyung Kim
2025-02-19 23:32                                           ` Ian Rogers
2025-02-03  5:47                       ` Atish Kumar Patra
2025-01-29 22:05 ` [PATCH v5 0/4] Prefer sysfs/JSON events also when no PMU is provided Namhyung Kim
2025-01-30 17:46 ` Namhyung Kim

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