perf session: Event statistics also are per session

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1260810361-22828-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

tools/perf/builtin-annotate.c

@@ -487,7 +487,7 @@ static int __cmd_annotate(void)
 		dsos__fprintf(stdout);
 
 	perf_session__collapse_resort(session);
-	perf_session__output_resort(session, event__total[0]);
+	perf_session__output_resort(session, session->event_total[0]);
 	perf_session__find_annotations(session);
 out_delete:
 	perf_session__delete(session);

tools/perf/builtin-report.c

@@ -619,8 +619,7 @@ static int process_sample_event(event_t *event, struct perf_session *session)
 		return -1;
 	}
 
-	event__stats.total += data.period;
-
+	session->events_stats.total += data.period;
 	return 0;
 }
 
@@ -731,8 +730,8 @@ static int __cmd_report(void)
 		dsos__fprintf(stdout);
 
 	perf_session__collapse_resort(session);
-	perf_session__output_resort(session, event__stats.total);
-	perf_session__fprintf_hist_entries(session, event__stats.total, stdout);
+	perf_session__output_resort(session, session->events_stats.total);
+	perf_session__fprintf_hist_entries(session, session->events_stats.total, stdout);
 
 	if (show_threads)
 		perf_read_values_destroy(&show_threads_values);

tools/perf/builtin-trace.c

@@ -96,8 +96,8 @@ static int process_sample_event(event_t *event, struct perf_session *session)
 					     data.raw_size,
 					     data.time, thread->comm);
 	}
-	event__stats.total += data.period;
 
+	session->events_stats.total += data.period;
 	return 0;
 }
 

tools/perf/util/event.c

@@ -187,8 +187,6 @@ void event__synthesize_threads(int (*process)(event_t *event,
 	closedir(proc);
 }
 
-struct events_stats event__stats;
-
 int event__process_comm(event_t *self, struct perf_session *session)
 {
 	struct thread *thread = perf_session__findnew(session, self->comm.pid);
@@ -203,10 +201,10 @@ int event__process_comm(event_t *self, struct perf_session *session)
 	return 0;
 }
 
-int event__process_lost(event_t *self, struct perf_session *session __used)
+int event__process_lost(event_t *self, struct perf_session *session)
 {
 	dump_printf(": id:%Ld: lost:%Ld\n", self->lost.id, self->lost.lost);
-	event__stats.lost += self->lost.lost;
+	session->events_stats.lost += self->lost.lost;
 	return 0;
 }
 

tools/perf/util/event.h

@@ -168,11 +168,6 @@ void event__synthesize_threads(int (*process)(event_t *event,
 					      struct perf_session *session),
 			       struct perf_session *session);
 
-extern char *event__cwd;
-extern int  event__cwdlen;
-extern struct events_stats event__stats;
-extern unsigned long event__total[PERF_RECORD_MAX];
-
 int event__process_comm(event_t *self, struct perf_session *session);
 int event__process_lost(event_t *self, struct perf_session *session);
 int event__process_mmap(event_t *self, struct perf_session *session);

tools/perf/util/session.h

@@ -5,6 +5,7 @@
 #include "header.h"
 #include "thread.h"
 #include <linux/rbtree.h>
+#include "../../../include/linux/perf_event.h"
 
 struct ip_callchain;
 struct thread;
@@ -18,6 +19,8 @@ struct perf_session {
 	struct map_groups	kmaps;
 	struct rb_root		threads;
 	struct thread		*last_match;
+	struct events_stats	events_stats;
+	unsigned long		event_total[PERF_RECORD_MAX];
 	struct rb_root		hists;
 	u64			sample_type;
 	int			fd;