linux-kernel - Re: [PATCH v5 7/7] perf report: Show branch type in callchain entry

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Message-ID: <20170419141538.GE19643@krava>
Date:   Wed, 19 Apr 2017 16:15:38 +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,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v5 7/7] perf report: Show branch type in callchain entry

On Wed, Apr 19, 2017 at 11:48:14PM +0800, Jin Yao wrote:

SNIP

> +static int count_str_printf(int index, const char *str,
> +	char *bf, int bfsize)
> +{
> +	int printed;
> +
> +	printed = scnprintf(bf, bfsize,
> +		"%s%s",
> +		(index) ? " " : " (", str);
> +
> +	return printed;
> +}
> +
> +static int branch_type_str(struct branch_type_stat *stat,
> +			   char *bf, int bfsize)
> +{
> +	int i, j = 0, printed = 0;
> +	u64 total = 0;
> +
> +	for (i = 0; i < PERF_BR_MAX; i++)
> +		total += stat->counts[i];
> +
> +	if (total == 0)
> +		return 0;
> +
> +	if (stat->jcc_fwd > 0)
> +		printed += count_str_printf(j++, "JCC forward",
> +				bf + printed, bfsize - printed);
> +
> +	if (stat->jcc_bwd > 0)
> +		printed += count_str_printf(j++, "JCC backward",
> +				bf + printed, bfsize - printed);
> +
> +	for (i = 0; i < PERF_BR_MAX; i++) {
> +		if (i == PERF_BR_JCC)
> +			continue;
> +
> +		if (stat->counts[i] > 0)
> +			printed += count_str_printf(j++, branch_type_name(i),
> +					bf + printed, bfsize - printed);
> +	}
> +
> +	if (stat->cross_4k > 0)
> +		printed += count_str_printf(j++, "CROSS_4K",
> +				bf + printed, bfsize - printed);
> +
> +	if (stat->cross_2m > 0)
> +		printed += count_str_printf(j++, "CROSS_2M",
> +				bf + printed, bfsize - printed);
> +
> +	return printed;
> +}

could you please also move this one to that new branch.c file

thanks,
jirka