linux-kernel - Re: [PATCH v1 4/9] perf util: Update and print per-thread shadow stats

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Date:   Tue, 21 Nov 2017 16:18:00 +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 4/9] perf util: Update and print per-thread shadow
 stats

On Mon, Nov 20, 2017 at 10:43:39PM +0800, Jin Yao wrote:

SNIP

>  	if (num == 0)
> diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
> index 151e9ef..50bb16d 100644
> --- a/tools/perf/util/stat.c
> +++ b/tools/perf/util/stat.c
> @@ -278,9 +278,16 @@ process_counter_values(struct perf_stat_config *config, struct perf_evsel *evsel
>  			perf_evsel__compute_deltas(evsel, cpu, thread, count);
>  		perf_counts_values__scale(count, config->scale, NULL);
>  		if (config->aggr_mode == AGGR_NONE)
> -			perf_stat__update_shadow_stats(evsel, count->val, cpu);
> -		if (config->aggr_mode == AGGR_THREAD)
> -			perf_stat__update_shadow_stats(evsel, count->val, 0);
> +			perf_stat__update_shadow_stats(evsel, count->val, cpu,
> +						       NULL);
> +		if (config->aggr_mode == AGGR_THREAD) {
> +			if (config->stats)
> +				perf_stat__update_shadow_stats(evsel,
> +					count->val, 0, &config->stats[thread]);

please add this part together with config->stats allocation/usage
and keep this change only about adding the struct runtime_stat *stat
into the code path with no functional change

thanks,
jirka