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From: Jiri Olsa <jolsa@redhat.com>
To: Jin Yao <yao.jin@linux.intel.com>
Cc: acme@kernel.org, jolsa@kernel.org, peterz@infradead.org,
	mingo@redhat.com, alexander.shishkin@linux.intel.com,
	Linux-kernel@vger.kernel.org, ak@linux.intel.com,
	kan.liang@intel.com, yao.jin@intel.com
Subject: Re: [PATCH v5 5/5] perf stat: Report summary for interval mode
Date: Mon, 18 May 2020 14:47:32 +0200	[thread overview]
Message-ID: <20200518124732.GE3726797@krava> (raw)
In-Reply-To: <20200514053638.3736-6-yao.jin@linux.intel.com>

On Thu, May 14, 2020 at 01:36:38PM +0800, Jin Yao wrote:

SNIP

>  
>  	evlist__for_each_entry(evsel_list, counter) {
>  		if (counter->err)
> @@ -394,6 +403,7 @@ static void runtime_stat_reset(struct perf_stat_config *config)
>  static void process_interval(void)
>  {
>  	struct timespec ts, rs;
> +	struct stats walltime_nsecs_stats_bak;
>  
>  	clock_gettime(CLOCK_MONOTONIC, &ts);
>  	diff_timespec(&rs, &ts, &ref_time);
> @@ -407,9 +417,11 @@ static void process_interval(void)
>  			pr_err("failed to write stat round event\n");
>  	}
>  
> +	walltime_nsecs_stats_bak = walltime_nsecs_stats;
>  	init_stats(&walltime_nsecs_stats);
>  	update_stats(&walltime_nsecs_stats, stat_config.interval * 1000000);
>  	print_counters(&rs, 0, NULL);
> +	walltime_nsecs_stats = walltime_nsecs_stats_bak;

could we instead of above initialize walltime_nsecs_stats
in the condition below, like:

	init_stats(&walltime_nsecs_stats);
	update_stats(&walltime_nsecs_stats, stat_config.interval * 1000000);

jirka

>  }
>  
>  static void enable_counters(void)
> @@ -765,6 +777,19 @@ static int __run_perf_stat(int argc, const char **argv, int run_idx)
>  
>  	update_stats(&walltime_nsecs_stats, t1 - t0);
>  
> +	if (interval) {
> +		stat_config.interval = 0;
> +		stat_config.summary = true;
> +
> +		if (stat_config.aggr_mode == AGGR_GLOBAL)
> +			perf_evlist__save_aggr_prev_raw_counts(evsel_list);
> +
> +		perf_evlist__copy_prev_raw_counts(evsel_list);
> +		perf_evlist__reset_prev_raw_counts(evsel_list);
> +		runtime_stat_reset(&stat_config);
> +		perf_stat__reset_shadow_per_stat(&rt_stat);
> +	}
> +

SNIP


  reply	other threads:[~2020-05-18 12:47 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-14  5:36 [PATCH v5 0/5] perf stat: Support overall statistics " Jin Yao
2020-05-14  5:36 ` [PATCH v5 1/5] perf stat: Fix wrong per-thread runtime stat " Jin Yao
2020-05-14  5:36 ` [PATCH v5 2/5] perf counts: Reset prev_raw_counts counts Jin Yao
2020-05-14  5:36 ` [PATCH v5 3/5] perf stat: Copy counts from prev_raw_counts to evsel->counts Jin Yao
2020-05-14  5:36 ` [PATCH v5 4/5] perf stat: Save aggr value to first member of prev_raw_counts Jin Yao
2020-05-18 12:48   ` Jiri Olsa
2020-05-18 14:44     ` Jin, Yao
2020-05-14  5:36 ` [PATCH v5 5/5] perf stat: Report summary for interval mode Jin Yao
2020-05-18 12:47   ` Jiri Olsa [this message]
2020-05-19  2:51     ` Jin, Yao
2020-05-14  9:53 ` [PATCH v5 0/5] perf stat: Support overall statistics " kajoljain
2020-05-14 13:44   ` Jin, Yao

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