linux-kernel - Re: [PATCH v4 7/9] perf stat: Use affinity for opening events

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Date:   Wed, 6 Nov 2019 17:34:24 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     Andi Kleen <andi@...stfloor.org>
Cc:     acme@...nel.org, jolsa@...nel.org, linux-kernel@...r.kernel.org,
        Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH v4 7/9] perf stat: Use affinity for opening events

On Mon, Nov 04, 2019 at 04:25:20PM -0800, Andi Kleen wrote:

SNIP

> +}
> +
>  void evsel__close(struct evsel *evsel)
>  {
>  	perf_evsel__close(&evsel->core);
> @@ -1832,9 +1839,10 @@ void evsel__close(struct evsel *evsel)
>  }
>  
>  int perf_evsel__open_per_cpu(struct evsel *evsel,
> -			     struct perf_cpu_map *cpus)
> +			     struct perf_cpu_map *cpus,
> +			     int cpu)
>  {
> -	return evsel__open(evsel, cpus, NULL);
> +	return evsel__open_cpu(evsel, cpus, NULL, cpu, cpu + 1);
>  }
>  
>  int perf_evsel__open_per_thread(struct evsel *evsel,
> diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
> index 2e3b011ed09e..d5440a928745 100644
> --- a/tools/perf/util/evsel.h
> +++ b/tools/perf/util/evsel.h
> @@ -94,6 +94,8 @@ struct evsel {
>  	struct evsel		*metric_leader;
>  	bool			collect_stat;
>  	bool			weak_group;
> +	bool			reset_group;
> +	bool			errored;

would be great to move some of the changes into separate patches,
it seems all related to new code, but would ease up the review
like these 2 bools above or adding cpu to create_perf_stat_counter
and adding evsel__open_cpu funtion and related changes

thanks,
jirka