Commit 1f513b2c authored by Ramkumar Ramachandra's avatar Ramkumar Ramachandra Committed by Arnaldo Carvalho de Melo
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perf diff: Color the Ratio column 



In

  $ perf diff -c ratio

color the Ratio column using value_color_snprintf(), a new function that
operates exactly like percent_color_snprintf().

At first glance, it looks like percent_color_snprintf() can be turned
into a non-variadic function simplifying things; however, 53805eca (perf
tools: Remove cast of non-variadic function to variadic, 2013-10-31)
explains why it needs to be a variadic function.

Signed-off-by: default avatarRamkumar Ramachandra <artagnon@gmail.com>
Acked-by: default avatarJiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1388388861-7931-4-git-send-email-artagnon@gmail.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 01f10bc8

tools/perf/builtin-diff.c

+20 −0
Original line number Diff line number Diff line
@@ -795,6 +795,17 @@ static int __hpp__color_compare(struct perf_hpp_fmt *fmt, 
		scnprintf(pfmt, 20, "%%%+d.2f%%%%", dfmt->header_width - 1);

		return percent_color_snprintf(hpp->buf, hpp->size,

					pfmt, diff);

	case COMPUTE_RATIO:

		if (he->dummy)

			goto dummy_print;

		if (pair->diff.computed)

			diff = pair->diff.period_ratio;

		else

			diff = compute_ratio(he, pair);



		scnprintf(pfmt, 20, "%%%d.6f", dfmt->header_width);

		return value_color_snprintf(hpp->buf, hpp->size,

					pfmt, diff);

	default:

		BUG_ON(1);

	}
@@ -809,6 +820,12 @@ static int hpp__color_delta(struct perf_hpp_fmt *fmt, 
	return __hpp__color_compare(fmt, hpp, he, COMPUTE_DELTA);

}



static int hpp__color_ratio(struct perf_hpp_fmt *fmt,

			struct perf_hpp *hpp, struct hist_entry *he)

{

	return __hpp__color_compare(fmt, hpp, he, COMPUTE_RATIO);

}



static void

hpp__entry_unpair(struct hist_entry *he, int idx, char *buf, size_t size)

{
@@ -987,6 +1004,9 @@ static void data__hpp_register(struct data__file *d, int idx) 
	case PERF_HPP_DIFF__DELTA:

		fmt->color = hpp__color_delta;

		break;

	case PERF_HPP_DIFF__RATIO:

		fmt->color = hpp__color_ratio;

		break;

	default:

		break;

	}

tools/perf/util/color.c

+7 −3
Original line number Diff line number Diff line
@@ -319,15 +319,19 @@ int percent_color_fprintf(FILE *fp, const char *fmt, double percent) 
	return r;

}



int value_color_snprintf(char *bf, size_t size, const char *fmt, double value)

{

	const char *color = get_percent_color(value);

	return color_snprintf(bf, size, color, fmt, value);

}



int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...)

{

	va_list args;

	double percent;

	const char *color;



	va_start(args, fmt);

	percent = va_arg(args, double);

	va_end(args);

	color = get_percent_color(percent);

	return color_snprintf(bf, size, color, fmt, percent);

	return value_color_snprintf(bf, size, fmt, percent);

}

tools/perf/util/color.h

+1 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ int color_fprintf(FILE *fp, const char *color, const char *fmt, ...); 
int color_snprintf(char *bf, size_t size, const char *color, const char *fmt, ...);

int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...);

int color_fwrite_lines(FILE *fp, const char *color, size_t count, const char *buf);

int value_color_snprintf(char *bf, size_t size, const char *fmt, double value);

int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...);

int percent_color_fprintf(FILE *fp, const char *fmt, double percent);

const char *get_percent_color(double percent);

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