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Date:   Wed, 5 Jun 2019 13:44:17 +0200
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 v2 4/7] perf diff: Use hists to manage basic blocks per
 symbol

On Mon, Jun 03, 2019 at 10:36:14PM +0800, Jin Yao wrote:

SNIP

> diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
> index 43623fa..d1641da 100644
> --- a/tools/perf/util/sort.h
> +++ b/tools/perf/util/sort.h
> @@ -79,6 +79,9 @@ struct hist_entry_diff {
>  
>  		/* HISTC_WEIGHTED_DIFF */
>  		s64	wdiff;
> +
> +		/* PERF_HPP_DIFF__CYCLES */
> +		s64	cycles;
>  	};
>  };
>  
> @@ -143,6 +146,9 @@ struct hist_entry {
>  	struct branch_info	*branch_info;
>  	long			time;
>  	struct hists		*hists;
> +	void			*block_hists;
> +	int			block_idx;
> +	int			block_num;
>  	struct mem_info		*mem_info;
>  	struct block_info	*block_info;

could you please not add the new block* stuff in here,
and instead use the "c2c model" and use yourr own struct
on top of hist_entry? we are trying to librarize this
stuff and keep only necessary things in here..

you're already using hist_entry_ops, so should be easy

something like:

	struct block_hist_entry {
		void			*block_hists;
		int			block_idx;
		int			block_num;
		struct block_info	*block_info;

		struct hist_entry	he;
	};



jirka

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