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Subject[tip:perf/core] perf hists browser: Add support to display whole group data for raw columns
Commit-ID:  0c5268bf2218144469dde3228f14898fadbbcdcd
Gitweb: http://git.kernel.org/tip/0c5268bf2218144469dde3228f14898fadbbcdcd
Author: Jiri Olsa <jolsa@redhat.com>
AuthorDate: Mon, 4 Feb 2013 13:32:55 +0100
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 6 Feb 2013 18:09:27 -0300

perf hists browser: Add support to display whole group data for raw columns

Currently we don't display group members' values for raw columns like
'Samples' and 'Period' when in group report mode.

Uniting '__hpp__percent_fmt' and '__hpp__raw_fmt' function under new
function __hpp__fmt. It's basically '__hpp__percent_fmt' code with new
'fmt_percent' bool parameter added saying whether raw number or
percentage should be printed.

This way raw columns print out all the group members when
in group report mode, like:

$ perf record -e '{cycles,cache-misses}' ls
...
$ perf report --group --show-total-period --stdio
...
# Overhead Period Command Shared Object Symbol
# ................ ........................ ....... ................. .................................
#
23.63% 11.24% 3331335 317 ls [kernel.kallsyms] [k] __lock_acquire
12.72% 0.00% 1793100 0 ls [kernel.kallsyms] [k] native_sched_clock
9.72% 0.00% 1369920 0 ls libc-2.14.90.so [.] _nl_find_locale
0.03% 0.07% 4476 2 ls [kernel.kallsyms] [k] intel_pmu_enable_all
0.00% 11.73% 0 331 ls ld-2.14.90.so [.] _dl_cache_libcmp
0.00% 11.06% 0 312 ls [kernel.kallsyms] [k] vma_interval_tree_insert

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1359981185-16819-2-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/ui/hist.c | 53 ++++++++++++++++++++++++++--------------------------
1 file changed, 26 insertions(+), 27 deletions(-)

diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index a47ce98..d671e63 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -9,18 +9,24 @@

typedef int (*hpp_snprint_fn)(char *buf, size_t size, const char *fmt, ...);

-static int __hpp__percent_fmt(struct perf_hpp *hpp, struct hist_entry *he,
- u64 (*get_field)(struct hist_entry *),
- const char *fmt, hpp_snprint_fn print_fn)
+static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
+ u64 (*get_field)(struct hist_entry *),
+ const char *fmt, hpp_snprint_fn print_fn,
+ bool fmt_percent)
{
int ret;
- double percent = 0.0;
struct hists *hists = he->hists;

- if (hists->stats.total_period)
- percent = 100.0 * get_field(he) / hists->stats.total_period;
+ if (fmt_percent) {
+ double percent = 0.0;
+
+ if (hists->stats.total_period)
+ percent = 100.0 * get_field(he) /
+ hists->stats.total_period;

- ret = print_fn(hpp->buf, hpp->size, fmt, percent);
+ ret = print_fn(hpp->buf, hpp->size, fmt, percent);
+ } else
+ ret = print_fn(hpp->buf, hpp->size, fmt, get_field(he));

if (symbol_conf.event_group) {
int prev_idx, idx_delta;
@@ -49,11 +55,15 @@ static int __hpp__percent_fmt(struct perf_hpp *hpp, struct hist_entry *he,
* have no sample
*/
ret += print_fn(hpp->buf + ret, hpp->size - ret,
- fmt, 0.0);
+ fmt, 0);
}

- ret += print_fn(hpp->buf + ret, hpp->size - ret,
- fmt, 100.0 * period / total);
+ if (fmt_percent)
+ ret += print_fn(hpp->buf + ret, hpp->size - ret,
+ fmt, 100.0 * period / total);
+ else
+ ret += print_fn(hpp->buf + ret, hpp->size - ret,
+ fmt, period);

prev_idx = perf_evsel__group_idx(evsel);
}
@@ -65,23 +75,12 @@ static int __hpp__percent_fmt(struct perf_hpp *hpp, struct hist_entry *he,
* zero-fill group members at last which have no sample
*/
ret += print_fn(hpp->buf + ret, hpp->size - ret,
- fmt, 0.0);
+ fmt, 0);
}
}
return ret;
}

-static int __hpp__raw_fmt(struct perf_hpp *hpp, struct hist_entry *he,
- u64 (*get_field)(struct hist_entry *),
- const char *fmt, hpp_snprint_fn print_fn)
-{
- int ret;
-
- ret = print_fn(hpp->buf, hpp->size, fmt, get_field(he));
- return ret;
-}
-
-
#define __HPP_HEADER_FN(_type, _str, _min_width, _unit_width) \
static int hpp__header_##_type(struct perf_hpp *hpp) \
{ \
@@ -116,16 +115,16 @@ static u64 he_get_##_field(struct hist_entry *he) \
\
static int hpp__color_##_type(struct perf_hpp *hpp, struct hist_entry *he) \
{ \
- return __hpp__percent_fmt(hpp, he, he_get_##_field, " %6.2f%%", \
- (hpp_snprint_fn)percent_color_snprintf); \
+ return __hpp__fmt(hpp, he, he_get_##_field, " %6.2f%%", \
+ (hpp_snprint_fn)percent_color_snprintf, true); \
}

#define __HPP_ENTRY_PERCENT_FN(_type, _field) \
static int hpp__entry_##_type(struct perf_hpp *hpp, struct hist_entry *he) \
{ \
const char *fmt = symbol_conf.field_sep ? " %.2f" : " %6.2f%%"; \
- return __hpp__percent_fmt(hpp, he, he_get_##_field, fmt, \
- scnprintf); \
+ return __hpp__fmt(hpp, he, he_get_##_field, fmt, \
+ scnprintf, true); \
}

#define __HPP_ENTRY_RAW_FN(_type, _field) \
@@ -137,7 +136,7 @@ static u64 he_get_raw_##_field(struct hist_entry *he) \
static int hpp__entry_##_type(struct perf_hpp *hpp, struct hist_entry *he) \
{ \
const char *fmt = symbol_conf.field_sep ? " %"PRIu64 : " %11"PRIu64; \
- return __hpp__raw_fmt(hpp, he, he_get_raw_##_field, fmt, scnprintf); \
+ return __hpp__fmt(hpp, he, he_get_raw_##_field, fmt, scnprintf, false); \
}

#define HPP_PERCENT_FNS(_type, _str, _field, _min_width, _unit_width) \

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