---

yaml
---
r: 191242
b: refs/heads/master
c: c61e52e
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5710fcad7c367adefe5634dc998f1f88780a8457
+refs/heads/master: c61e52ee705f938596d307625dce00cc4345aaf0

trunk/tools/perf/builtin-lock.c

@@ -316,8 +316,6 @@ static struct lock_stat *lock_stat_findnew(void *addr, const char *name)
 
 static char			const *input_name = "perf.data";
 
-static int			profile_cpu = -1;
-
 struct raw_event_sample {
 	u32			size;
 	char			data[0];
@@ -697,8 +695,7 @@ process_lock_release_event(void *data,
 }
 
 static void
-process_raw_event(void *data, int cpu __used,
-		  u64 timestamp __used, struct thread *thread __used)
+process_raw_event(void *data, int cpu, u64 timestamp, struct thread *thread)
 {
 	struct event *event;
 	int type;
@@ -716,176 +713,6 @@ process_raw_event(void *data, int cpu __used,
 		process_lock_release_event(data, event, cpu, timestamp, thread);
 }
 
-struct raw_event_queue {
-	u64			timestamp;
-	int			cpu;
-	void			*data;
-	struct thread		*thread;
-	struct list_head	list;
-};
-
-static LIST_HEAD(raw_event_head);
-
-#define FLUSH_PERIOD	(5 * NSEC_PER_SEC)
-
-static u64 flush_limit = ULLONG_MAX;
-static u64 last_flush = 0;
-struct raw_event_queue *last_inserted;
-
-static void flush_raw_event_queue(u64 limit)
-{
-	struct raw_event_queue *tmp, *iter;
-
-	list_for_each_entry_safe(iter, tmp, &raw_event_head, list) {
-		if (iter->timestamp > limit)
-			return;
-
-		if (iter == last_inserted)
-			last_inserted = NULL;
-
-		process_raw_event(iter->data, iter->cpu, iter->timestamp,
-				  iter->thread);
-
-		last_flush = iter->timestamp;
-		list_del(&iter->list);
-		free(iter->data);
-		free(iter);
-	}
-}
-
-static void __queue_raw_event_end(struct raw_event_queue *new)
-{
-	struct raw_event_queue *iter;
-
-	list_for_each_entry_reverse(iter, &raw_event_head, list) {
-		if (iter->timestamp < new->timestamp) {
-			list_add(&new->list, &iter->list);
-			return;
-		}
-	}
-
-	list_add(&new->list, &raw_event_head);
-}
-
-static void __queue_raw_event_before(struct raw_event_queue *new,
-				     struct raw_event_queue *iter)
-{
-	list_for_each_entry_continue_reverse(iter, &raw_event_head, list) {
-		if (iter->timestamp < new->timestamp) {
-			list_add(&new->list, &iter->list);
-			return;
-		}
-	}
-
-	list_add(&new->list, &raw_event_head);
-}
-
-static void __queue_raw_event_after(struct raw_event_queue *new,
-				     struct raw_event_queue *iter)
-{
-	list_for_each_entry_continue(iter, &raw_event_head, list) {
-		if (iter->timestamp > new->timestamp) {
-			list_add_tail(&new->list, &iter->list);
-			return;
-		}
-	}
-	list_add_tail(&new->list, &raw_event_head);
-}
-
-/* The queue is ordered by time */
-static void __queue_raw_event(struct raw_event_queue *new)
-{
-	if (!last_inserted) {
-		__queue_raw_event_end(new);
-		return;
-	}
-
-	/*
-	 * Most of the time the current event has a timestamp
-	 * very close to the last event inserted, unless we just switched
-	 * to another event buffer. Having a sorting based on a list and
-	 * on the last inserted event that is close to the current one is
-	 * probably more efficient than an rbtree based sorting.
-	 */
-	if (last_inserted->timestamp >= new->timestamp)
-		__queue_raw_event_before(new, last_inserted);
-	else
-		__queue_raw_event_after(new, last_inserted);
-}
-
-static void queue_raw_event(void *data, int raw_size, int cpu,
-			    u64 timestamp, struct thread *thread)
-{
-	struct raw_event_queue *new;
-
-	if (flush_limit == ULLONG_MAX)
-		flush_limit = timestamp + FLUSH_PERIOD;
-
-	if (timestamp < last_flush) {
-		printf("Warning: Timestamp below last timeslice flush\n");
-		return;
-	}
-
-	new = malloc(sizeof(*new));
-	if (!new)
-		die("Not enough memory\n");
-
-	new->timestamp = timestamp;
-	new->cpu = cpu;
-	new->thread = thread;
-
-	new->data = malloc(raw_size);
-	if (!new->data)
-		die("Not enough memory\n");
-
-	memcpy(new->data, data, raw_size);
-
-	__queue_raw_event(new);
-	last_inserted = new;
-
-	/*
-	 * We want to have a slice of events covering 2 * FLUSH_PERIOD
-	 * If FLUSH_PERIOD is big enough, it ensures every events that occured
-	 * in the first half of the timeslice have all been buffered and there
-	 * are none remaining (we need that because of the weakly ordered
-	 * event recording we have). Then once we reach the 2 * FLUSH_PERIOD
-	 * timeslice, we flush the first half to be gentle with the memory
-	 * (the second half can still get new events in the middle, so wait
-	 * another period to flush it)
-	 */
-	if (new->timestamp > flush_limit &&
-		new->timestamp - flush_limit > FLUSH_PERIOD) {
-		flush_limit += FLUSH_PERIOD;
-		flush_raw_event_queue(flush_limit);
-	}
-}
-
-static int process_sample_event(event_t *event, struct perf_session *s)
-{
-	struct thread *thread;
-	struct sample_data data;
-
-	bzero(&data, sizeof(struct sample_data));
-	event__parse_sample(event, s->sample_type, &data);
-	/* CAUTION: using tid as thread.pid */
-	thread = perf_session__findnew(s, data.tid);
-
-	if (thread == NULL) {
-		pr_debug("problem processing %d event, skipping it.\n",
-			 event->header.type);
-		return -1;
-	}
-
-	dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
-
-	if (profile_cpu != -1 && profile_cpu != (int) data.cpu)
-		return 0;
-
-	queue_raw_event(data.raw_data, data.raw_size, data.cpu, data.time, thread);
-
-	return 0;
-}
-
 /* TODO: various way to print, coloring, nano or milli sec */
 static void print_result(void)
 {
@@ -963,9 +790,30 @@ static void dump_map(void)
 	}
 }
 
+static int process_sample_event(event_t *self, struct perf_session *s)
+{
+	struct sample_data data;
+	struct thread *thread;
+
+	bzero(&data, sizeof(data));
+	event__parse_sample(self, s->sample_type, &data);
+
+	thread = perf_session__findnew(s, data.tid);
+	if (thread == NULL) {
+		pr_debug("problem processing %d event, skipping it.\n",
+			self->header.type);
+		return -1;
+	}
+
+	process_raw_event(data.raw_data, data.cpu, data.time, thread);
+
+	return 0;
+}
+
 static struct perf_event_ops eops = {
 	.sample			= process_sample_event,
 	.comm			= event__process_comm,
+	.ordered_samples	= true,
 };
 
 static int read_events(void)
@@ -994,7 +842,6 @@ static void __cmd_report(void)
 	setup_pager();
 	select_key();
 	read_events();
-	flush_raw_event_queue(ULLONG_MAX);
 	sort_result();
 	print_result();
 }