linux-kernel - Re: [PATCH 04/13 v4] perf tools: Replace aggregation ID with a struct

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Date:   Tue, 17 Nov 2020 16:51:12 +0200
From:   James Clark <james.clark@....com>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Thomas Richter <tmricht@...ux.ibm.com>,
        John Garry <john.garry@...wei.com>
Subject: Re: [PATCH 04/13 v4] perf tools: Replace aggregation ID with a struct



On 15/11/2020 23:17, Jiri Olsa wrote:
> On Fri, Nov 13, 2020 at 07:26:45PM +0200, James Clark wrote:
> 
> SNIP
> 
>> @@ -754,7 +766,7 @@ static void print_aggr_thread(struct perf_stat_config *config,
>>  	FILE *output = config->output;
>>  	int nthreads = perf_thread_map__nr(counter->core.threads);
>>  	int ncpus = perf_cpu_map__nr(counter->core.cpus);
>> -	int thread, sorted_threads, id;
>> +	int thread, sorted_threads;
>>  	struct perf_aggr_thread_value *buf;
>>  
>>  	buf = sort_aggr_thread(counter, nthreads, ncpus, &sorted_threads, _target);
>> @@ -767,13 +779,12 @@ static void print_aggr_thread(struct perf_stat_config *config,
>>  		if (prefix)
>>  			fprintf(output, "%s", prefix);
>>  
>> -		id = buf[thread].id;
> 
> would it be less changes in here if you kept id with new type?

Yes it did turn out with almost no changes by just changing the type.

James

> 
> jirka
> 
>>  		if (config->stats)
>> -			printout(config, id, 0, buf[thread].counter, buf[thread].uval,
>> +			printout(config, buf[thread].id, 0, buf[thread].counter, buf[thread].uval,
>>  				 prefix, buf[thread].run, buf[thread].ena, 1.0,
>> -				 &config->stats[id]);
>> +				 &config->stats[buf[thread].id.id]);
>>  		else
>> -			printout(config, id, 0, buf[thread].counter, buf[thread].uval,
>> +			printout(config, buf[thread].id, 0, buf[thread].counter, buf[thread].uval,
>>  				 prefix, buf[thread].run, buf[thread].ena, 1.0,
>>  				 &rt_stat);
>>  		fputc('\n', output);
> 
> SNIP
>