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Message-Id: <1352497390-17716-9-git-send-email-acme@infradead.org>
Date: Fri, 9 Nov 2012 18:42:57 -0300
From: Arnaldo Carvalho de Melo <acme@...radead.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org,
Arnaldo Carvalho de Melo <acme@...hat.com>,
David Ahern <dsahern@...il.com>,
Frederic Weisbecker <fweisbec@...il.com>,
Jiri Olsa <jolsa@...hat.com>, Mike Galbraith <efault@....de>,
Namhyung Kim <namhyung@...il.com>,
Paul Mackerras <paulus@...ba.org>,
Peter Zijlstra <peterz@...radead.org>,
Stephane Eranian <eranian@...gle.com>
Subject: [PATCH 08/21] perf diff: Start moving to support matching more than two hists
From: Arnaldo Carvalho de Melo <acme@...hat.com>
We want to match more than two hists, so that we can match more than two
perf.data files and moreover, match hist_entries (buckets) in multiple
events in a group.
So the "baseline"/"leader" will instead of a ->pair pointer, use a
list_head, that will link to the pairs and hists__match use it.
Following that perf_evlist__link will link the hists in its evsel
groups.
Cc: David Ahern <dsahern@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Mike Galbraith <efault@....de>
Cc: Namhyung Kim <namhyung@...il.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/n/tip-2kbmzepoi544ygj9godseqpv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/builtin-diff.c | 21 ++++++++++++---------
tools/perf/ui/hist.c | 10 +++++-----
tools/perf/util/hist.c | 2 ++
tools/perf/util/sort.h | 27 +++++++++++++++++++++++----
4 files changed, 42 insertions(+), 18 deletions(-)
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 380683d..8a9db38 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -154,7 +154,7 @@ static double get_period_percent(struct hist_entry *he, u64 period)
double perf_diff__compute_delta(struct hist_entry *he)
{
- struct hist_entry *pair = he->pair;
+ struct hist_entry *pair = hist_entry__next_pair(he);
double new_percent = get_period_percent(he, he->stat.period);
double old_percent = pair ? get_period_percent(pair, pair->stat.period) : 0.0;
@@ -165,7 +165,7 @@ double perf_diff__compute_delta(struct hist_entry *he)
double perf_diff__compute_ratio(struct hist_entry *he)
{
- struct hist_entry *pair = he->pair;
+ struct hist_entry *pair = hist_entry__next_pair(he);
double new_period = he->stat.period;
double old_period = pair ? pair->stat.period : 0;
@@ -176,7 +176,7 @@ double perf_diff__compute_ratio(struct hist_entry *he)
s64 perf_diff__compute_wdiff(struct hist_entry *he)
{
- struct hist_entry *pair = he->pair;
+ struct hist_entry *pair = hist_entry__next_pair(he);
u64 new_period = he->stat.period;
u64 old_period = pair ? pair->stat.period : 0;
@@ -193,7 +193,7 @@ s64 perf_diff__compute_wdiff(struct hist_entry *he)
static int formula_delta(struct hist_entry *he, char *buf, size_t size)
{
- struct hist_entry *pair = he->pair;
+ struct hist_entry *pair = hist_entry__next_pair(he);
if (!pair)
return -1;
@@ -207,7 +207,7 @@ static int formula_delta(struct hist_entry *he, char *buf, size_t size)
static int formula_ratio(struct hist_entry *he, char *buf, size_t size)
{
- struct hist_entry *pair = he->pair;
+ struct hist_entry *pair = hist_entry__next_pair(he);
double new_period = he->stat.period;
double old_period = pair ? pair->stat.period : 0;
@@ -219,7 +219,7 @@ static int formula_ratio(struct hist_entry *he, char *buf, size_t size)
static int formula_wdiff(struct hist_entry *he, char *buf, size_t size)
{
- struct hist_entry *pair = he->pair;
+ struct hist_entry *pair = hist_entry__next_pair(he);
u64 new_period = he->stat.period;
u64 old_period = pair ? pair->stat.period : 0;
@@ -359,8 +359,11 @@ static void hists__match(struct hists *older, struct hists *newer)
struct rb_node *nd;
for (nd = rb_first(&newer->entries); nd; nd = rb_next(nd)) {
- struct hist_entry *pos = rb_entry(nd, struct hist_entry, rb_node);
- pos->pair = hists__find_entry(older, pos);
+ struct hist_entry *pos = rb_entry(nd, struct hist_entry, rb_node),
+ *pair = hists__find_entry(older, pos);
+
+ if (pair)
+ hist__entry_add_pair(pos, pair);
}
}
@@ -402,7 +405,7 @@ static void hists__baseline_only(struct hists *hists)
struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node);
next = rb_next(&he->rb_node);
- if (!he->pair) {
+ if (!hist_entry__next_pair(he)) {
rb_erase(&he->rb_node, &hists->entries);
hist_entry__free(he);
}
diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index 4f5f475..aa84130 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -161,7 +161,7 @@ static int hpp__width_baseline(struct perf_hpp *hpp __maybe_unused)
static double baseline_percent(struct hist_entry *he)
{
- struct hist_entry *pair = he->pair;
+ struct hist_entry *pair = hist_entry__next_pair(he);
struct hists *pair_hists = pair ? pair->hists : NULL;
double percent = 0.0;
@@ -179,7 +179,7 @@ static int hpp__color_baseline(struct perf_hpp *hpp, struct hist_entry *he)
{
double percent = baseline_percent(he);
- if (he->pair)
+ if (hist_entry__has_pairs(he))
return percent_color_snprintf(hpp->buf, hpp->size, " %6.2f%%", percent);
else
return scnprintf(hpp->buf, hpp->size, " ");
@@ -190,7 +190,7 @@ static int hpp__entry_baseline(struct perf_hpp *hpp, struct hist_entry *he)
double percent = baseline_percent(he);
const char *fmt = symbol_conf.field_sep ? "%.2f" : " %6.2f%%";
- if (he->pair || symbol_conf.field_sep)
+ if (hist_entry__has_pairs(he) || symbol_conf.field_sep)
return scnprintf(hpp->buf, hpp->size, fmt, percent);
else
return scnprintf(hpp->buf, hpp->size, " ");
@@ -248,7 +248,7 @@ static int hpp__width_period_baseline(struct perf_hpp *hpp __maybe_unused)
static int hpp__entry_period_baseline(struct perf_hpp *hpp, struct hist_entry *he)
{
- struct hist_entry *pair = he->pair;
+ struct hist_entry *pair = hist_entry__next_pair(he);
u64 period = pair ? pair->stat.period : 0;
const char *fmt = symbol_conf.field_sep ? "%" PRIu64 : "%12" PRIu64;
@@ -354,7 +354,7 @@ static int hpp__width_displ(struct perf_hpp *hpp __maybe_unused)
static int hpp__entry_displ(struct perf_hpp *hpp,
struct hist_entry *he)
{
- struct hist_entry *pair = he->pair;
+ struct hist_entry *pair = hist_entry__next_pair(he);
long displacement = pair ? pair->position - he->position : 0;
const char *fmt = symbol_conf.field_sep ? "%s" : "%6.6s";
char buf[32] = " ";
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index a1b823f..f42de79 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -244,6 +244,8 @@ static struct hist_entry *hist_entry__new(struct hist_entry *template)
he->ms.map->referenced = true;
if (symbol_conf.use_callchain)
callchain_init(he->callchain);
+
+ INIT_LIST_HEAD(&he->pairs.node);
}
return he;
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 13761d8..b4e8c3b 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -77,6 +77,10 @@ struct hist_entry_diff {
struct hist_entry {
struct rb_node rb_node_in;
struct rb_node rb_node;
+ union {
+ struct list_head node;
+ struct list_head head;
+ } pairs;
struct he_stat stat;
struct map_symbol ms;
struct thread *thread;
@@ -96,15 +100,30 @@ struct hist_entry {
char *srcline;
struct symbol *parent;
unsigned long position;
- union {
- struct hist_entry *pair;
- struct rb_root sorted_chain;
- };
+ struct rb_root sorted_chain;
struct branch_info *branch_info;
struct hists *hists;
struct callchain_root callchain[0];
};
+static inline bool hist_entry__has_pairs(struct hist_entry *he)
+{
+ return !list_empty(&he->pairs.node);
+}
+
+static inline struct hist_entry *hist_entry__next_pair(struct hist_entry *he)
+{
+ if (hist_entry__has_pairs(he))
+ return list_entry(he->pairs.node.next, struct hist_entry, pairs.node);
+ return NULL;
+}
+
+static inline void hist__entry_add_pair(struct hist_entry *he,
+ struct hist_entry *pair)
+{
+ list_add_tail(&he->pairs.head, &pair->pairs.node);
+}
+
enum sort_type {
SORT_PID,
SORT_COMM,
--
1.7.9.2.358.g22243
--
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