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Re: [PATCH 02/10] perf, tools, stat: Collapse identically named events

From Jiri Olsa <jolsa@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH 02/10] perf, tools, stat: Collapse identically named events
Date 2017-03-07 11:10 +0100
Message-ID <tike6-5Vf-25@gated-at.bofh.it> (permalink)
References <tg6oV-7DX-3@gated-at.bofh.it> <tg87o-tP-9@gated-at.bofh.it>
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On Tue, Feb 28, 2017 at 10:49:16PM -0800, Andi Kleen wrote:

SNIP

>  	}
>  }
>  
> +static void collect_all_aliases(struct perf_evsel *counter,
> +			    void (*cb)(struct perf_evsel *counter, void *data,
> +				       bool first),
> +			    void *data)
> +{
> +	struct perf_evsel *alias;
> +
> +	alias = list_prepare_entry(counter, &(evsel_list->entries), node);
> +	list_for_each_entry_continue (alias, &evsel_list->entries, node) {
> +		if (strcmp(perf_evsel__name(alias), perf_evsel__name(counter)) ||
> +		    alias->scale != counter->scale ||
> +		    alias->cgrp != counter->cgrp ||
> +		    strcmp(alias->unit, counter->unit) ||
> +		    nsec_counter(alias) != nsec_counter(counter))
> +			break;
> +		alias->merged_stat = true;
> +		cb(alias, data, false);
> +	}
> +}
> +
>  static void collect_data(struct perf_evsel *counter,
>  			    void (*cb)(struct perf_evsel *counter, void *data,
>  				       bool first),
>  			    void *data)
>  {

could we place the merged_stat condition in here and have
collect_data return value to process or not the current
counter.. looks like we could get rid of 2 merged_stat
conditions in print_counter_aggr and print_aggr

jirka

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Thread

perf: Improve support for uncore JSON event lists Andi Kleen <andi@firstfloor.org> - 2017-03-01 08:00 +0100
  [PATCH 05/10] perf, tools: Special case uncore_ prefix Andi Kleen <andi@firstfloor.org> - 2017-03-01 08:00 +0100
  [PATCH 06/10] perf, tools: Add a simple expression parser for JSON Andi Kleen <andi@firstfloor.org> - 2017-03-01 09:30 +0100
  [PATCH 02/10] perf, tools, stat: Collapse identically named events Andi Kleen <andi@firstfloor.org> - 2017-03-01 09:50 +0100
    Re: [PATCH 02/10] perf, tools, stat: Collapse identically named  events Jiri Olsa <jolsa@redhat.com> - 2017-03-05 19:00 +0100
    Re: [PATCH 02/10] perf, tools, stat: Collapse identically named  events Jiri Olsa <jolsa@redhat.com> - 2017-03-07 11:10 +0100
  [PATCH 08/10] perf, tools, stat: Output JSON MetricExpr metric Andi Kleen <andi@firstfloor.org> - 2017-03-01 12:30 +0100
    Re: [PATCH 08/10] perf, tools, stat: Output JSON MetricExpr metric Jiri Olsa <jolsa@redhat.com> - 2017-03-07 11:10 +0100
  Re: perf: Improve support for uncore JSON event lists Jiri Olsa <jolsa@redhat.com> - 2017-03-07 11:10 +0100

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