linux-kernel - Re: [PATCH v1 2/3] perf stat: Support coresum event qualifier

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Date:   Fri, 15 Mar 2019 14:34:53 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     Jin Yao <yao.jin@...ux.intel.com>
Cc:     acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
        mingo@...hat.com, alexander.shishkin@...ux.intel.com,
        Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        kan.liang@...el.com, yao.jin@...el.com
Subject: Re: [PATCH v1 2/3] perf stat: Support coresum event qualifier

On Sat, Mar 16, 2019 at 12:04:15AM +0800, Jin Yao wrote:

SNIP

> +static void print_counter_aggrdata(struct perf_stat_config *config,
> +				   struct perf_evsel *counter, int s,
> +				   char *prefix, bool metric_only,
> +				   bool *first)
> +{
> +	struct aggr_data ad;
> +	FILE *output = config->output;
> +	u64 ena, run, val;
> +	int id, nr;
> +	double uval;
> +
> +	ad.id = id = config->aggr_map->map[s];
> +	ad.val = ad.ena = ad.run = 0;
> +	ad.nr = 0;
> +	if (!collect_data(config, counter, aggr_cb, &ad))
> +		return;
> +
> +	nr = ad.nr;
> +	ena = ad.ena;
> +	run = ad.run;
> +	val = ad.val;
> +	if (*first && metric_only) {
> +		*first = false;
> +		aggr_printout(config, counter, id, nr);
> +	}
> +	if (prefix && !metric_only)
> +		fprintf(output, "%s", prefix);
> +
> +	uval = val * counter->scale;
> +	printout(config, id, nr, counter, uval, prefix,
> +		 run, ena, 1.0, &rt_stat);
> +	if (!metric_only)
> +		fputc('\n', output);
> +}

plese put the factoring out of print_counter_aggrdata function
into separate patch

thanks,
jirka


> +
>  static void print_aggr(struct perf_stat_config *config,
>  		       struct perf_evlist *evlist,
>  		       char *prefix)
> @@ -606,9 +649,7 @@ static void print_aggr(struct perf_stat_config *config,
>  	bool metric_only = config->metric_only;
>  	FILE *output = config->output;
>  	struct perf_evsel *counter;
> -	int s, id, nr;
> -	double uval;
> -	u64 ena, run, val;
> +	int s;
>  	bool first;
>  
>  	if (!(config->aggr_map || config->aggr_get_id))
> @@ -621,36 +662,16 @@ static void print_aggr(struct perf_stat_config *config,
>  	 * Without each counter has its own line.
>  	 */
>  	for (s = 0; s < config->aggr_map->nr; s++) {
> -		struct aggr_data ad;
>  		if (prefix && metric_only)
>  			fprintf(output, "%s", prefix);
>  
> -		ad.id = id = config->aggr_map->map[s];
>  		first = true;
>  		evlist__for_each_entry(evlist, counter) {
>  			if (is_duration_time(counter))
>  				continue;
> -
> -			ad.val = ad.ena = ad.run = 0;
> -			ad.nr = 0;
> -			if (!collect_data(config, counter, aggr_cb, &ad))
> -				continue;
> -			nr = ad.nr;
> -			ena = ad.ena;
> -			run = ad.run;
> -			val = ad.val;
> -			if (first && metric_only) {
> -				first = false;
> -				aggr_printout(config, counter, id, nr);
> -			}
> -			if (prefix && !metric_only)
> -				fprintf(output, "%s", prefix);
> -
> -			uval = val * counter->scale;
> -			printout(config, id, nr, counter, uval, prefix,
> -				 run, ena, 1.0, &rt_stat);
> -			if (!metric_only)
> -				fputc('\n', output);
> +			print_counter_aggrdata(config, counter, s,
> +					       prefix, metric_only,
> +					       &first);

SNIP