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perf diff: Color the Ratio column

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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, 53805ec (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: Ramkumar Ramachandra <artagnon@gmail.com>
Acked-by: Jiri 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: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ramkumar Ramachandra 2013-12-30 13:04:20 +05:30 • committed by Arnaldo Carvalho de Melo
parent 01f10bc85f
commit 1f513b2c1e
3 changed files with 28 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

20
tools/perf/builtin-diff.c
View file

@ -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;
}