perf hist: Make event__totals per hists

This is one more thing that started global but are more useful per hist
or per session.

Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

8 files changed, 62 insertions, 38 deletions

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index fd1b786c8f35..77bcc9b130f5 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -365,7 +365,7 @@ static int __cmd_annotate(void)
                 goto out_delete;
 
         if (dump_trace) {
-                event__print_totals();
+                perf_session__fprintf_nr_events(session, stdout);
                 goto out_delete;
         }
 
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 04de3387de3f..f13cda1ef059 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -139,6 +139,12 @@ static int add_event_total(struct perf_session *session,
                 return -ENOMEM;
 
         hists->stats.total += data->period;
+        /*
+         * FIXME: add_event_total should be moved from here to
+         * perf_session__process_event so that the proper hist is passed to
+         * the event_op methods.
+         */
+        hists__inc_nr_events(hists, PERF_RECORD_SAMPLE);
         session->hists.stats.total += data->period;
         return 0;
 }
@@ -293,7 +299,7 @@ static int __cmd_report(void)
                 goto out_delete;
 
         if (dump_trace) {
-                event__print_totals();
+                perf_session__fprintf_nr_events(session, stdout);
                 goto out_delete;
         }
 
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index cce006ec8f05..3e8fec173041 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -7,6 +7,23 @@
 #include "strlist.h"
 #include "thread.h"
 
+const char *event__name[] = {
+        [0]                      = "TOTAL",
+        [PERF_RECORD_MMAP]       = "MMAP",
+        [PERF_RECORD_LOST]       = "LOST",
+        [PERF_RECORD_COMM]       = "COMM",
+        [PERF_RECORD_EXIT]       = "EXIT",
+        [PERF_RECORD_THROTTLE]   = "THROTTLE",
+        [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE",
+        [PERF_RECORD_FORK]       = "FORK",
+        [PERF_RECORD_READ]       = "READ",
+        [PERF_RECORD_SAMPLE]     = "SAMPLE",
+        [PERF_RECORD_HEADER_ATTR]        = "ATTR",
+        [PERF_RECORD_HEADER_EVENT_TYPE]  = "EVENT_TYPE",
+        [PERF_RECORD_HEADER_TRACING_DATA]        = "TRACING_DATA",
+        [PERF_RECORD_HEADER_BUILD_ID]    = "BUILD_ID",
+};
+
 static pid_t event__synthesize_comm(pid_t pid, int full,
                                     event__handler_t process,
                                     struct perf_session *session)
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 48c2cc9dae4f..8577085db067 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -160,4 +160,6 @@ int event__preprocess_sample(const event_t *self, struct perf_session *session,
                              struct addr_location *al, symbol_filter_t filter);
 int event__parse_sample(event_t *event, u64 type, struct sample_data *data);
 
+extern const char *event__name[];
+
 #endif /* __PERF_RECORD_H */
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 5dc4f8429eda..1614ad710046 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1028,3 +1028,24 @@ int hist_entry__annotate(struct hist_entry *self, struct list_head *head)
         pclose(file);
         return 0;
 }
+
+void hists__inc_nr_events(struct hists *self, u32 type)
+{
+        ++self->hists.stats.nr_events[0];
+        ++self->hists.stats.nr_events[type];
+}
+
+size_t hists__fprintf_nr_events(struct hists *self, FILE *fp)
+{
+        int i;
+        size_t ret = 0;
+
+        for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) {
+                if (!event__name[i])
+                        continue;
+                ret += fprintf(fp, "%10s events: %10d\n",
+                               event__name[i], self->stats.nr_events[i]);
+        }
+
+        return ret;
+}
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 0b4c8df914bd..97b8962ff69a 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -40,6 +40,8 @@ struct sym_priv {
 struct events_stats {
         u64 total;
         u64 lost;
+        u32 nr_events[PERF_RECORD_HEADER_MAX];
+        u32 nr_unknown_events;
 };
 
 struct hists {
@@ -68,6 +70,10 @@ void hist_entry__free(struct hist_entry *);
 
 void hists__output_resort(struct hists *self);
 void hists__collapse_resort(struct hists *self);
+
+void hists__inc_nr_events(struct hists *self, u32 type);
+size_t hists__fprintf_nr_events(struct hists *self, FILE *fp);
+
 size_t hists__fprintf(struct hists *self, struct hists *pair,
                       bool show_displacement, FILE *fp);
 
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 72a7f6ae0293..7231f6b19fb4 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -94,7 +94,6 @@ struct perf_session *perf_session__new(const char *filename, int mode, bool forc
         self->mmap_window = 32;
         self->cwd = NULL;
         self->cwdlen = 0;
-        self->unknown_events = 0;
         self->machines = RB_ROOT;
         self->repipe = repipe;
         INIT_LIST_HEAD(&self->ordered_samples.samples_head);
@@ -241,36 +240,6 @@ static void perf_event_ops__fill_defaults(struct perf_event_ops *handler)
         }
 }
 
-static const char *event__name[] = {
-        [0]                      = "TOTAL",
-        [PERF_RECORD_MMAP]       = "MMAP",
-        [PERF_RECORD_LOST]       = "LOST",
-        [PERF_RECORD_COMM]       = "COMM",
-        [PERF_RECORD_EXIT]       = "EXIT",
-        [PERF_RECORD_THROTTLE]   = "THROTTLE",
-        [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE",
-        [PERF_RECORD_FORK]       = "FORK",
-        [PERF_RECORD_READ]       = "READ",
-        [PERF_RECORD_SAMPLE]     = "SAMPLE",
-        [PERF_RECORD_HEADER_ATTR]        = "ATTR",
-        [PERF_RECORD_HEADER_EVENT_TYPE]  = "EVENT_TYPE",
-        [PERF_RECORD_HEADER_TRACING_DATA]        = "TRACING_DATA",
-        [PERF_RECORD_HEADER_BUILD_ID]    = "BUILD_ID",
-};
-
-unsigned long event__total[PERF_RECORD_HEADER_MAX];
-
-void event__print_totals(void)
-{
-        int i;
-        for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) {
-                if (!event__name[i])
-                        continue;
-                pr_info("%10s events: %10ld\n",
-                        event__name[i], event__total[i]);
-        }
-}
-
 void mem_bswap_64(void *src, int byte_size)
 {
         u64 *m = src;
@@ -580,8 +549,7 @@ static int perf_session__process_event(struct perf_session *self,
                 dump_printf("%#Lx [%#x]: PERF_RECORD_%s",
                             offset + head, event->header.size,
                             event__name[event->header.type]);
-                ++event__total[0];
-                ++event__total[event->header.type];
+                hists__inc_nr_events(self, event->header.type);
         }
 
         if (self->header.needs_swap && event__swap_ops[event->header.type])
@@ -619,7 +587,7 @@ static int perf_session__process_event(struct perf_session *self,
         case PERF_RECORD_FINISHED_ROUND:
                 return ops->finished_round(event, self, ops);
         default:
-                self->unknown_events++;
+                ++self->hists.stats.nr_unknown_events;
                 return -1;
         }
 }
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index ce00fa6cdeda..e7fce486ebe2 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -30,8 +30,6 @@ struct perf_session {
         struct machine          host_machine;
         struct rb_root          machines;
         struct rb_root          hists_tree;
-        unsigned long           event_total[PERF_RECORD_MAX];
-        unsigned long           unknown_events;
         /*
          * FIXME: should point to the first entry in hists_tree and
          *        be a hists instance. Right now its only 'report'
@@ -140,4 +138,10 @@ size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp,
 {
         return machines__fprintf_dsos_buildid(&self->machines, fp, with_hits);
 }
+
+static inline
+size_t perf_session__fprintf_nr_events(struct perf_session *self, FILE *fp)
+{
+        return hists__fprintf_nr_events(&self->hists, fp);
+}
 #endif /* __PERF_SESSION_H */