diff mbox series

[v5,08/11] perf/tools: Refactoring metricgroup__add_metric function

Message ID 20200317062333.14555-9-kjain@linux.ibm.com (mailing list archive)
State Superseded
Headers show
Series powerpc/perf: Add json file metric support for the hv_24x7 socket/chip level events | expand

Checks

Context Check Description
snowpatch_ozlabs/apply_patch warning Failed to apply on branch powerpc/merge (ab326587bb5fb91cc97df9b9f48e9e1469f04621)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch powerpc/next (247257b03b04398ca07da4bce3d17bee25d623cb)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch linus/master (fb33c6510d5595144d585aa194d377cf74d31911)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch powerpc/fixes (59bee45b9712c759ea4d3dcc4eff1752f3a66558)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch linux-next (8548fd2f20ed19b0e8c0585b71fdfde1ae00ae3c)
snowpatch_ozlabs/apply_patch fail Failed to apply to any branch

Commit Message

Kajol Jain March 17, 2020, 6:23 a.m. UTC
This patch refactor metricgroup__add_metric function where
some part of it move to function metricgroup__add_metric_param.
No logic change.

Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
---
 tools/perf/util/metricgroup.c | 63 +++++++++++++++++++++--------------
 1 file changed, 38 insertions(+), 25 deletions(-)

Comments

Jiri Olsa March 17, 2020, 3:09 p.m. UTC | #1
On Tue, Mar 17, 2020 at 11:53:30AM +0530, Kajol Jain wrote:
> This patch refactor metricgroup__add_metric function where
> some part of it move to function metricgroup__add_metric_param.
> No logic change.

can't compile this change:

[jolsa@krava perf]$ make JOBS=1
  BUILD:   Doing 'make -j1' parallel build
  CC       util/metricgroup.o
util/metricgroup.c: In function ‘metricgroup__add_metric_param’:
util/metricgroup.c:486:6: error: too many arguments to function ‘expr__find_other’
  486 |  if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum, 1) < 0)
      |      ^~~~~~~~~~~~~~~~
In file included from util/metricgroup.c:14:
util/expr.h:25:5: note: declared here
   25 | int expr__find_other(const char *expr, const char *one, const char ***other,
      |     ^~~~~~~~~~~~~~~~
mv: cannot stat 'util/.metricgroup.o.tmp': No such file or directory
make[4]: *** [/home/jolsa/kernel/linux-perf/tools/build/Makefile.build:97: util/metricgroup.o] Error 1
make[3]: *** [/home/jolsa/kernel/linux-perf/tools/build/Makefile.build:139: util] Error 2
make[2]: *** [Makefile.perf:616: perf-in.o] Error 2
make[1]: *** [Makefile.perf:225: sub-make] Error 2
make: *** [Makefile:70: all] Error 2

jirka

> 
> Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
> ---
>  tools/perf/util/metricgroup.c | 63 +++++++++++++++++++++--------------
>  1 file changed, 38 insertions(+), 25 deletions(-)
> 
> diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
> index c3a8c701609a..b4919bcfbd8b 100644
> --- a/tools/perf/util/metricgroup.c
> +++ b/tools/perf/util/metricgroup.c
> @@ -474,6 +474,41 @@ static bool metricgroup__has_constraint(struct pmu_event *pe)
>  	return false;
>  }
>  
> +static int metricgroup__add_metric_param(struct strbuf *events,
> +			struct list_head *group_list, struct pmu_event *pe)
> +{
> +
> +	const char **ids;
> +	int idnum;
> +	struct egroup *eg;
> +	int ret = -EINVAL;
> +
> +	if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum, 1) < 0)
> +		return ret;
> +
> +	if (events->len > 0)
> +		strbuf_addf(events, ",");
> +
> +	if (metricgroup__has_constraint(pe))
> +		metricgroup__add_metric_non_group(events, ids, idnum);
> +	else
> +		metricgroup__add_metric_weak_group(events, ids, idnum);
> +
> +	eg = malloc(sizeof(*eg));
> +	if (!eg)
> +		ret = -ENOMEM;
> +
> +	eg->ids = ids;
> +	eg->idnum = idnum;
> +	eg->metric_name = pe->metric_name;
> +	eg->metric_expr = pe->metric_expr;
> +	eg->metric_unit = pe->unit;
> +	list_add_tail(&eg->nd, group_list);
> +	ret = 0;
> +
> +	return ret;
> +}
> +
>  static int metricgroup__add_metric(const char *metric, struct strbuf *events,
>  				   struct list_head *group_list)
>  {
> @@ -493,35 +528,13 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events,
>  			continue;
>  		if (match_metric(pe->metric_group, metric) ||
>  		    match_metric(pe->metric_name, metric)) {
> -			const char **ids;
> -			int idnum;
> -			struct egroup *eg;
>  
>  			pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name);
>  
> -			if (expr__find_other(pe->metric_expr,
> -					     NULL, &ids, &idnum) < 0)
> +			ret = metricgroup__add_metric_param(events,
> +							group_list, pe);
> +			if (ret == -EINVAL)
>  				continue;
> -			if (events->len > 0)
> -				strbuf_addf(events, ",");
> -
> -			if (metricgroup__has_constraint(pe))
> -				metricgroup__add_metric_non_group(events, ids, idnum);
> -			else
> -				metricgroup__add_metric_weak_group(events, ids, idnum);
> -
> -			eg = malloc(sizeof(struct egroup));
> -			if (!eg) {
> -				ret = -ENOMEM;
> -				break;
> -			}
> -			eg->ids = ids;
> -			eg->idnum = idnum;
> -			eg->metric_name = pe->metric_name;
> -			eg->metric_expr = pe->metric_expr;
> -			eg->metric_unit = pe->unit;
> -			list_add_tail(&eg->nd, group_list);
> -			ret = 0;
>  		}
>  	}
>  	return ret;
> -- 
> 2.18.1
>
Jiri Olsa March 17, 2020, 3:09 p.m. UTC | #2
On Tue, Mar 17, 2020 at 11:53:30AM +0530, Kajol Jain wrote:
> This patch refactor metricgroup__add_metric function where
> some part of it move to function metricgroup__add_metric_param.
> No logic change.
> 
> Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
> ---
>  tools/perf/util/metricgroup.c | 63 +++++++++++++++++++++--------------
>  1 file changed, 38 insertions(+), 25 deletions(-)
> 
> diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
> index c3a8c701609a..b4919bcfbd8b 100644
> --- a/tools/perf/util/metricgroup.c
> +++ b/tools/perf/util/metricgroup.c
> @@ -474,6 +474,41 @@ static bool metricgroup__has_constraint(struct pmu_event *pe)
>  	return false;
>  }
>  
> +static int metricgroup__add_metric_param(struct strbuf *events,
> +			struct list_head *group_list, struct pmu_event *pe)
> +{
> +
> +	const char **ids;
> +	int idnum;
> +	struct egroup *eg;
> +	int ret = -EINVAL;
> +
> +	if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum, 1) < 0)
> +		return ret;
> +
> +	if (events->len > 0)
> +		strbuf_addf(events, ",");
> +
> +	if (metricgroup__has_constraint(pe))
> +		metricgroup__add_metric_non_group(events, ids, idnum);
> +	else
> +		metricgroup__add_metric_weak_group(events, ids, idnum);
> +
> +	eg = malloc(sizeof(*eg));
> +	if (!eg)
> +		ret = -ENOMEM;
> +
> +	eg->ids = ids;
> +	eg->idnum = idnum;
> +	eg->metric_name = pe->metric_name;
> +	eg->metric_expr = pe->metric_expr;
> +	eg->metric_unit = pe->unit;
> +	list_add_tail(&eg->nd, group_list);
> +	ret = 0;
> +
> +	return ret;

	return 0;

jirka
Jiri Olsa March 17, 2020, 3:10 p.m. UTC | #3
On Tue, Mar 17, 2020 at 11:53:30AM +0530, Kajol Jain wrote:
> This patch refactor metricgroup__add_metric function where
> some part of it move to function metricgroup__add_metric_param.
> No logic change.
> 
> Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
> ---
>  tools/perf/util/metricgroup.c | 63 +++++++++++++++++++++--------------
>  1 file changed, 38 insertions(+), 25 deletions(-)
> 
> diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
> index c3a8c701609a..b4919bcfbd8b 100644
> --- a/tools/perf/util/metricgroup.c
> +++ b/tools/perf/util/metricgroup.c
> @@ -474,6 +474,41 @@ static bool metricgroup__has_constraint(struct pmu_event *pe)
>  	return false;
>  }
>  
> +static int metricgroup__add_metric_param(struct strbuf *events,
> +			struct list_head *group_list, struct pmu_event *pe)
> +{
> +
> +	const char **ids;
> +	int idnum;
> +	struct egroup *eg;
> +	int ret = -EINVAL;
> +
> +	if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum, 1) < 0)
> +		return ret;
> +
> +	if (events->len > 0)
> +		strbuf_addf(events, ",");
> +
> +	if (metricgroup__has_constraint(pe))
> +		metricgroup__add_metric_non_group(events, ids, idnum);
> +	else
> +		metricgroup__add_metric_weak_group(events, ids, idnum);
> +
> +	eg = malloc(sizeof(*eg));
> +	if (!eg)
> +		ret = -ENOMEM;

??? you need to return in here, eg is NULL

> +
> +	eg->ids = ids;
> +	eg->idnum = idnum;
> +	eg->metric_name = pe->metric_name;
> +	eg->metric_expr = pe->metric_expr;
> +	eg->metric_unit = pe->unit;
> +	list_add_tail(&eg->nd, group_list);
> +	ret = 0;
> +
> +	return ret;
> +}
> +
>  static int metricgroup__add_metric(const char *metric, struct strbuf *events,
>  				   struct list_head *group_list)
>  {
> @@ -493,35 +528,13 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events,
>  			continue;
>  		if (match_metric(pe->metric_group, metric) ||
>  		    match_metric(pe->metric_name, metric)) {
> -			const char **ids;
> -			int idnum;
> -			struct egroup *eg;
>  
>  			pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name);
>  
> -			if (expr__find_other(pe->metric_expr,
> -					     NULL, &ids, &idnum) < 0)
> +			ret = metricgroup__add_metric_param(events,
> +							group_list, pe);
> +			if (ret == -EINVAL)
>  				continue;

previous code did 'continue' on ret < 0, why just -EINVAL now?

jirka
Kajol Jain March 18, 2020, 11:41 a.m. UTC | #4
On 3/17/20 8:39 PM, Jiri Olsa wrote:
> On Tue, Mar 17, 2020 at 11:53:30AM +0530, Kajol Jain wrote:
>> This patch refactor metricgroup__add_metric function where
>> some part of it move to function metricgroup__add_metric_param.
>> No logic change.
> 
> can't compile this change:
> 
> [jolsa@krava perf]$ make JOBS=1
>   BUILD:   Doing 'make -j1' parallel build
>   CC       util/metricgroup.o
> util/metricgroup.c: In function ‘metricgroup__add_metric_param’:
> util/metricgroup.c:486:6: error: too many arguments to function ‘expr__find_other’
>   486 |  if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum, 1) < 0)
>       |      ^~~~~~~~~~~~~~~~
> In file included from util/metricgroup.c:14:
> util/expr.h:25:5: note: declared here
>    25 | int expr__find_other(const char *expr, const char *one, const char ***other,
>       |     ^~~~~~~~~~~~~~~~
> mv: cannot stat 'util/.metricgroup.o.tmp': No such file or directory
> make[4]: *** [/home/jolsa/kernel/linux-perf/tools/build/Makefile.build:97: util/metricgroup.o] Error 1
> make[3]: *** [/home/jolsa/kernel/linux-perf/tools/build/Makefile.build:139: util] Error 2
> make[2]: *** [Makefile.perf:616: perf-in.o] Error 2
> make[1]: *** [Makefile.perf:225: sub-make] Error 2
> make: *** [Makefile:70: all] Error 2

Hi Jiri,
      I made a mistake while arranging the patches in the series. I'll re-arrange it
and send it again.

Thanks,
Kajol

> 
> jirka
> 
>>
>> Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
>> ---
>>  tools/perf/util/metricgroup.c | 63 +++++++++++++++++++++--------------
>>  1 file changed, 38 insertions(+), 25 deletions(-)
>>
>> diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
>> index c3a8c701609a..b4919bcfbd8b 100644
>> --- a/tools/perf/util/metricgroup.c
>> +++ b/tools/perf/util/metricgroup.c
>> @@ -474,6 +474,41 @@ static bool metricgroup__has_constraint(struct pmu_event *pe)
>>  	return false;
>>  }
>>  
>> +static int metricgroup__add_metric_param(struct strbuf *events,
>> +			struct list_head *group_list, struct pmu_event *pe)
>> +{
>> +
>> +	const char **ids;
>> +	int idnum;
>> +	struct egroup *eg;
>> +	int ret = -EINVAL;
>> +
>> +	if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum, 1) < 0)
>> +		return ret;
>> +
>> +	if (events->len > 0)
>> +		strbuf_addf(events, ",");
>> +
>> +	if (metricgroup__has_constraint(pe))
>> +		metricgroup__add_metric_non_group(events, ids, idnum);
>> +	else
>> +		metricgroup__add_metric_weak_group(events, ids, idnum);
>> +
>> +	eg = malloc(sizeof(*eg));
>> +	if (!eg)
>> +		ret = -ENOMEM;
>> +
>> +	eg->ids = ids;
>> +	eg->idnum = idnum;
>> +	eg->metric_name = pe->metric_name;
>> +	eg->metric_expr = pe->metric_expr;
>> +	eg->metric_unit = pe->unit;
>> +	list_add_tail(&eg->nd, group_list);
>> +	ret = 0;
>> +
>> +	return ret;
>> +}
>> +
>>  static int metricgroup__add_metric(const char *metric, struct strbuf *events,
>>  				   struct list_head *group_list)
>>  {
>> @@ -493,35 +528,13 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events,
>>  			continue;
>>  		if (match_metric(pe->metric_group, metric) ||
>>  		    match_metric(pe->metric_name, metric)) {
>> -			const char **ids;
>> -			int idnum;
>> -			struct egroup *eg;
>>  
>>  			pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name);
>>  
>> -			if (expr__find_other(pe->metric_expr,
>> -					     NULL, &ids, &idnum) < 0)
>> +			ret = metricgroup__add_metric_param(events,
>> +							group_list, pe);
>> +			if (ret == -EINVAL)
>>  				continue;
>> -			if (events->len > 0)
>> -				strbuf_addf(events, ",");
>> -
>> -			if (metricgroup__has_constraint(pe))
>> -				metricgroup__add_metric_non_group(events, ids, idnum);
>> -			else
>> -				metricgroup__add_metric_weak_group(events, ids, idnum);
>> -
>> -			eg = malloc(sizeof(struct egroup));
>> -			if (!eg) {
>> -				ret = -ENOMEM;
>> -				break;
>> -			}
>> -			eg->ids = ids;
>> -			eg->idnum = idnum;
>> -			eg->metric_name = pe->metric_name;
>> -			eg->metric_expr = pe->metric_expr;
>> -			eg->metric_unit = pe->unit;
>> -			list_add_tail(&eg->nd, group_list);
>> -			ret = 0;
>>  		}
>>  	}
>>  	return ret;
>> -- 
>> 2.18.1
>>
>
Kajol Jain March 18, 2020, 12:17 p.m. UTC | #5
On 3/17/20 8:40 PM, Jiri Olsa wrote:
> On Tue, Mar 17, 2020 at 11:53:30AM +0530, Kajol Jain wrote:
>> This patch refactor metricgroup__add_metric function where
>> some part of it move to function metricgroup__add_metric_param.
>> No logic change.
>>
>> Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
>> ---
>>  tools/perf/util/metricgroup.c | 63 +++++++++++++++++++++--------------
>>  1 file changed, 38 insertions(+), 25 deletions(-)
>>
>> diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
>> index c3a8c701609a..b4919bcfbd8b 100644
>> --- a/tools/perf/util/metricgroup.c
>> +++ b/tools/perf/util/metricgroup.c
>> @@ -474,6 +474,41 @@ static bool metricgroup__has_constraint(struct pmu_event *pe)
>>  	return false;
>>  }
>>  
>> +static int metricgroup__add_metric_param(struct strbuf *events,
>> +			struct list_head *group_list, struct pmu_event *pe)
>> +{
>> +
>> +	const char **ids;
>> +	int idnum;
>> +	struct egroup *eg;
>> +	int ret = -EINVAL;
>> +
>> +	if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum, 1) < 0)
>> +		return ret;
>> +
>> +	if (events->len > 0)
>> +		strbuf_addf(events, ",");
>> +
>> +	if (metricgroup__has_constraint(pe))
>> +		metricgroup__add_metric_non_group(events, ids, idnum);
>> +	else
>> +		metricgroup__add_metric_weak_group(events, ids, idnum);
>> +
>> +	eg = malloc(sizeof(*eg));
>> +	if (!eg)
>> +		ret = -ENOMEM;
> 
> ??? you need to return in here, eg is NULL

Yes right, miss this part. Will correct it.

> 
>> +
>> +	eg->ids = ids;
>> +	eg->idnum = idnum;
>> +	eg->metric_name = pe->metric_name;
>> +	eg->metric_expr = pe->metric_expr;
>> +	eg->metric_unit = pe->unit;
>> +	list_add_tail(&eg->nd, group_list);
>> +	ret = 0;
>> +
>> +	return ret;
>> +}
>> +
>>  static int metricgroup__add_metric(const char *metric, struct strbuf *events,
>>  				   struct list_head *group_list)
>>  {
>> @@ -493,35 +528,13 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events,
>>  			continue;
>>  		if (match_metric(pe->metric_group, metric) ||
>>  		    match_metric(pe->metric_name, metric)) {
>> -			const char **ids;
>> -			int idnum;
>> -			struct egroup *eg;
>>  
>>  			pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name);
>>  
>> -			if (expr__find_other(pe->metric_expr,
>> -					     NULL, &ids, &idnum) < 0)
>> +			ret = metricgroup__add_metric_param(events,
>> +							group_list, pe);
>> +			if (ret == -EINVAL)
>>  				continue;
> 
> previous code did 'continue' on ret < 0, why just -EINVAL now?

Actually incase we have memory issue then we are not 
continuing that's why I added check for -EINVAL explicitly. Because for other cases
I am returning -EINVAL itself. But Yes I miss one part, where
even after matched metric we are continuing incase ret = 0. Will update that part.
Please let me know if it sounds fine.

Thanks,
Kajol
> 
> jirka
>
diff mbox series

Patch

diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index c3a8c701609a..b4919bcfbd8b 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -474,6 +474,41 @@  static bool metricgroup__has_constraint(struct pmu_event *pe)
 	return false;
 }
 
+static int metricgroup__add_metric_param(struct strbuf *events,
+			struct list_head *group_list, struct pmu_event *pe)
+{
+
+	const char **ids;
+	int idnum;
+	struct egroup *eg;
+	int ret = -EINVAL;
+
+	if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum, 1) < 0)
+		return ret;
+
+	if (events->len > 0)
+		strbuf_addf(events, ",");
+
+	if (metricgroup__has_constraint(pe))
+		metricgroup__add_metric_non_group(events, ids, idnum);
+	else
+		metricgroup__add_metric_weak_group(events, ids, idnum);
+
+	eg = malloc(sizeof(*eg));
+	if (!eg)
+		ret = -ENOMEM;
+
+	eg->ids = ids;
+	eg->idnum = idnum;
+	eg->metric_name = pe->metric_name;
+	eg->metric_expr = pe->metric_expr;
+	eg->metric_unit = pe->unit;
+	list_add_tail(&eg->nd, group_list);
+	ret = 0;
+
+	return ret;
+}
+
 static int metricgroup__add_metric(const char *metric, struct strbuf *events,
 				   struct list_head *group_list)
 {
@@ -493,35 +528,13 @@  static int metricgroup__add_metric(const char *metric, struct strbuf *events,
 			continue;
 		if (match_metric(pe->metric_group, metric) ||
 		    match_metric(pe->metric_name, metric)) {
-			const char **ids;
-			int idnum;
-			struct egroup *eg;
 
 			pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name);
 
-			if (expr__find_other(pe->metric_expr,
-					     NULL, &ids, &idnum) < 0)
+			ret = metricgroup__add_metric_param(events,
+							group_list, pe);
+			if (ret == -EINVAL)
 				continue;
-			if (events->len > 0)
-				strbuf_addf(events, ",");
-
-			if (metricgroup__has_constraint(pe))
-				metricgroup__add_metric_non_group(events, ids, idnum);
-			else
-				metricgroup__add_metric_weak_group(events, ids, idnum);
-
-			eg = malloc(sizeof(struct egroup));
-			if (!eg) {
-				ret = -ENOMEM;
-				break;
-			}
-			eg->ids = ids;
-			eg->idnum = idnum;
-			eg->metric_name = pe->metric_name;
-			eg->metric_expr = pe->metric_expr;
-			eg->metric_unit = pe->unit;
-			list_add_tail(&eg->nd, group_list);
-			ret = 0;
 		}
 	}
 	return ret;