linux-kernel - Re: [PATCH v2 1/4] perf record: allocate affinity masks

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Date:   Tue, 1 Jan 2019 22:39:24 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     Alexey Budankov <alexey.budankov@...ux.intel.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Andi Kleen <ak@...ux.intel.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/4] perf record: allocate affinity masks

On Mon, Dec 24, 2018 at 03:23:13PM +0300, Alexey Budankov wrote:

SNIP

> @@ -2143,6 +2152,8 @@ int cmd_record(int argc, const char **argv)
>  	if (verbose > 0)
>  		pr_info("nr_cblocks: %d\n", rec->opts.nr_cblocks);
>  
> +	pr_debug("affinity: %s\n", affinity_tags[rec->opts.affinity]);
> +
>  	err = __cmd_record(&record, argc, argv);
>  out:
>  	perf_evlist__delete(rec->evlist);
> diff --git a/tools/perf/perf.h b/tools/perf/perf.h
> index 388c6dd128b8..69f54529d81f 100644
> --- a/tools/perf/perf.h
> +++ b/tools/perf/perf.h
> @@ -83,6 +83,14 @@ struct record_opts {
>  	clockid_t    clockid;
>  	u64          clockid_res_ns;
>  	int	     nr_cblocks;
> +	int	     affinity;
> +};
> +
> +enum perf_affinity {
> +	PERF_AFFINITY_SYS = 0,
> +	PERF_AFFINITY_NODE,
> +	PERF_AFFINITY_CPU,
> +	PERF_AFFINITY_EOF

PERF_AFFINITY_MAX might be better name

jirka