[tip:perf/core] perf annotate: Merge same lines in summary view
From: tip-bot for Namhyung Kim
Date: Wed Nov 14 2012 - 03:45:13 EST
Commit-ID: 411279658adf6a4f5bb25ec032a39ae905bcf234
Gitweb: http://git.kernel.org/tip/411279658adf6a4f5bb25ec032a39ae905bcf234
Author: Namhyung Kim <namhyung.kim@xxxxxxx>
AuthorDate: Fri, 9 Nov 2012 14:58:49 +0900
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 9 Nov 2012 16:50:18 -0300
perf annotate: Merge same lines in summary view
The --print-line option of perf annotate command shows summary for
each source line. But it didn't merge same lines so that it can
appear multiple times.
* before:
Sorted summary for file /home/namhyung/bin/mcol
----------------------------------------------
21.71 /home/namhyung/tmp/mcol.c:26
20.66 /home/namhyung/tmp/mcol.c:25
9.53 /home/namhyung/tmp/mcol.c:24
7.68 /home/namhyung/tmp/mcol.c:25
7.67 /home/namhyung/tmp/mcol.c:25
7.66 /home/namhyung/tmp/mcol.c:26
7.49 /home/namhyung/tmp/mcol.c:26
6.92 /home/namhyung/tmp/mcol.c:25
6.81 /home/namhyung/tmp/mcol.c:25
1.07 /home/namhyung/tmp/mcol.c:26
0.52 /home/namhyung/tmp/mcol.c:25
0.51 /home/namhyung/tmp/mcol.c:25
0.51 /home/namhyung/tmp/mcol.c:24
* after:
Sorted summary for file /home/namhyung/bin/mcol
----------------------------------------------
50.77 /home/namhyung/tmp/mcol.c:25
37.94 /home/namhyung/tmp/mcol.c:26
10.04 /home/namhyung/tmp/mcol.c:24
To do that, introduce percent_sum field so that the normal
line-by-line output doesn't get changed.
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1352440729-21848-1-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/annotate.c | 55 +++++++++++++++++++++++++++++++++++++++++--
tools/perf/util/annotate.h | 1 +
2 files changed, 53 insertions(+), 3 deletions(-)
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 435bf6d..07aaeea 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -858,12 +858,41 @@ static void insert_source_line(struct rb_root *root, struct source_line *src_lin
struct source_line *iter;
struct rb_node **p = &root->rb_node;
struct rb_node *parent = NULL;
+ int ret;
while (*p != NULL) {
parent = *p;
iter = rb_entry(parent, struct source_line, node);
- if (src_line->percent > iter->percent)
+ ret = strcmp(iter->path, src_line->path);
+ if (ret == 0) {
+ iter->percent_sum += src_line->percent;
+ return;
+ }
+
+ if (ret < 0)
+ p = &(*p)->rb_left;
+ else
+ p = &(*p)->rb_right;
+ }
+
+ src_line->percent_sum = src_line->percent;
+
+ rb_link_node(&src_line->node, parent, p);
+ rb_insert_color(&src_line->node, root);
+}
+
+static void __resort_source_line(struct rb_root *root, struct source_line *src_line)
+{
+ struct source_line *iter;
+ struct rb_node **p = &root->rb_node;
+ struct rb_node *parent = NULL;
+
+ while (*p != NULL) {
+ parent = *p;
+ iter = rb_entry(parent, struct source_line, node);
+
+ if (src_line->percent_sum > iter->percent_sum)
p = &(*p)->rb_left;
else
p = &(*p)->rb_right;
@@ -873,6 +902,24 @@ static void insert_source_line(struct rb_root *root, struct source_line *src_lin
rb_insert_color(&src_line->node, root);
}
+static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
+{
+ struct source_line *src_line;
+ struct rb_node *node;
+
+ node = rb_first(src_root);
+ while (node) {
+ struct rb_node *next;
+
+ src_line = rb_entry(node, struct source_line, node);
+ next = rb_next(node);
+ rb_erase(node, src_root);
+
+ __resort_source_line(dest_root, src_line);
+ node = next;
+ }
+}
+
static void symbol__free_source_line(struct symbol *sym, int len)
{
struct annotation *notes = symbol__annotation(sym);
@@ -897,6 +944,7 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map,
struct source_line *src_line;
struct annotation *notes = symbol__annotation(sym);
struct sym_hist *h = annotation__histogram(notes, evidx);
+ struct rb_root tmp_root = RB_ROOT;
if (!h->sum)
return 0;
@@ -931,12 +979,13 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map,
goto next;
strcpy(src_line[i].path, path);
- insert_source_line(root, &src_line[i]);
+ insert_source_line(&tmp_root, &src_line[i]);
next:
pclose(fp);
}
+ resort_source_line(root, &tmp_root);
return 0;
}
@@ -960,7 +1009,7 @@ static void print_summary(struct rb_root *root, const char *filename)
char *path;
src_line = rb_entry(node, struct source_line, node);
- percent = src_line->percent;
+ percent = src_line->percent_sum;
color = get_percent_color(percent);
path = src_line->path;
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index c627201..8eec943 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -76,6 +76,7 @@ struct sym_hist {
struct source_line {
struct rb_node node;
double percent;
+ double percent_sum;
char *path;
};
--
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