diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index c66e6a321371819deb602bfc96473e190136098f..6ec4f51d536b7afc96d1e9f8afa447701440ff43 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -57,7 +57,7 @@ static u64 sample_type;
#define BUG_ON(x) assert(!(x))
-#define DEBUG 1
+#define DEBUG 0
typedef unsigned long long nsec_t;
@@ -238,15 +238,14 @@ static struct sched_event *last_event(struct task_desc *task)
}
static void
-add_sched_event_run(struct task_desc *task, nsec_t timestamp,
- unsigned long duration)
+add_sched_event_run(struct task_desc *task, nsec_t timestamp, u64 duration)
{
struct sched_event *event, *curr_event = last_event(task);
/*
- * optimize an existing RUN event by merging this one
- * to it:
- */
+ * optimize an existing RUN event by merging this one
+ * to it:
+ */
if (curr_event && curr_event->type == SCHED_EVENT_RUN) {
nr_run_events_optimized++;
curr_event->duration += duration;
@@ -376,7 +375,7 @@ void parse_line(char *line)
dprintk("parsed: %s - %ld %Ld: %s - <%s %ld> (%ld %ld)\n",
comm,
pid,
- timestamp,
+ timestamp,
func_str,
comm2,
pid2,
@@ -429,7 +428,7 @@ static void add_cross_task_wakeups(void)
}
static void
-process_sched_event(struct task_desc *this_task, struct sched_event *event)
+process_sched_event(struct task_desc *this_task __used, struct sched_event *event)
{
int ret = 0;
nsec_t now;
@@ -744,9 +743,9 @@ static void run_one_test(void)
#if 0
/*
- * rusage statistics done by the parent, these are less
- * accurate than the sum_exec_runtime based statistics:
- */
+ * rusage statistics done by the parent, these are less
+ * accurate than the sum_exec_runtime based statistics:
+ */
printk(" [%0.2f / %0.2f]",
(double)parent_cpu_usage/1e6,
(double)runavg_parent_cpu_usage/1e6);
@@ -798,16 +797,128 @@ process_comm_event(event_t *event, unsigned long offset, unsigned long head)
return 0;
}
-static void process_sched_wakeup_event(struct event *event,
+struct trace_wakeup_event {
+ u32 size;
+
+ u16 common_type;
+ u8 common_flags;
+ u8 common_preempt_count;
+ u32 common_pid;
+ u32 common_tgid;
+
+ char comm[16];
+ u32 pid;
+
+ u32 prio;
+ u32 success;
+ u32 cpu;
+};
+
+static void
+process_sched_wakeup_event(struct trace_wakeup_event *wakeup_event, struct event *event,
int cpu __used, u64 timestamp __used, struct thread *thread __used)
{
+ struct task_desc *waker, *wakee;
+
printf("sched_wakeup event %p\n", event);
+
+ printf(" ... pid %d woke up %s/%d\n",
+ wakeup_event->common_pid,
+ wakeup_event->comm,
+ wakeup_event->pid);
+
+ waker = register_pid(wakeup_event->common_pid, "<unknown>");
+ wakee = register_pid(wakeup_event->pid, wakeup_event->comm);
+
+ add_sched_event_wakeup(waker, timestamp, wakee);
}
-static void process_sched_switch_event(struct event *event,
+struct trace_switch_event {
+ u32 size;
+
+ u16 common_type;
+ u8 common_flags;
+ u8 common_preempt_count;
+ u32 common_pid;
+ u32 common_tgid;
+
+ char prev_comm[16];
+ u32 prev_pid;
+ u32 prev_prio;
+ u64 prev_state;
+ char next_comm[16];
+ u32 next_pid;
+ u32 next_prio;
+};
+
+#define MAX_CPUS 4096
+
+unsigned long cpu_last_switched[MAX_CPUS];
+
+static void
+process_sched_switch_event(struct trace_switch_event *switch_event, struct event *event,
int cpu __used, u64 timestamp __used, struct thread *thread __used)
{
+ struct task_desc *prev, *next;
+ u64 timestamp0;
+ s64 delta;
+
printf("sched_switch event %p\n", event);
+ if (cpu >= MAX_CPUS || cpu < 0)
+ return;
+
+ timestamp0 = cpu_last_switched[cpu];
+ if (timestamp0)
+ delta = timestamp - timestamp0;
+ else
+ delta = 0;
+
+ if (delta < 0)
+ die("hm, delta: %Ld < 0 ?\n", delta);
+
+ printf(" ... switch from %s/%d to %s/%d [ran %Ld nsecs]\n",
+ switch_event->prev_comm, switch_event->prev_pid,
+ switch_event->next_comm, switch_event->next_pid,
+ delta);
+
+ prev = register_pid(switch_event->prev_pid, switch_event->prev_comm);
+ next = register_pid(switch_event->next_pid, switch_event->next_comm);
+
+ cpu_last_switched[cpu] = timestamp;
+
+ add_sched_event_run(prev, timestamp, delta);
+}
+
+struct trace_fork_event {
+ u32 size;
+
+ u16 common_type;
+ u8 common_flags;
+ u8 common_preempt_count;
+ u32 common_pid;
+ u32 common_tgid;
+
+ char parent_comm[16];
+ u32 parent_pid;
+ char child_comm[16];
+ u32 child_pid;
+};
+
+static void
+process_sched_fork_event(struct trace_fork_event *fork_event, struct event *event,
+ int cpu __used, u64 timestamp __used, struct thread *thread __used)
+{
+ printf("sched_fork event %p\n", event);
+ printf("... parent: %s/%d\n", fork_event->parent_comm, fork_event->parent_pid);
+ printf("... child: %s/%d\n", fork_event->child_comm, fork_event->child_pid);
+ register_pid(fork_event->parent_pid, fork_event->parent_comm);
+ register_pid(fork_event->child_pid, fork_event->child_comm);
+}
+
+static void process_sched_exit_event(struct event *event,
+ int cpu __used, u64 timestamp __used, struct thread *thread __used)
+{
+ printf("sched_exit event %p\n", event);
}
static void
@@ -833,9 +944,15 @@ process_raw_event(event_t *raw_event, void *more_data,
raw_event->header.type, type, event->name);
if (!strcmp(event->name, "sched_switch"))
- process_sched_switch_event(event, cpu, timestamp, thread);
+ process_sched_switch_event(more_data, event, cpu, timestamp, thread);
if (!strcmp(event->name, "sched_wakeup"))
- process_sched_wakeup_event(event, cpu, timestamp, thread);
+ process_sched_wakeup_event(more_data, event, cpu, timestamp, thread);
+ if (!strcmp(event->name, "sched_wakeup_new"))
+ process_sched_wakeup_event(more_data, event, cpu, timestamp, thread);
+ if (!strcmp(event->name, "sched_process_fork"))
+ process_sched_fork_event(more_data, event, cpu, timestamp, thread);
+ if (!strcmp(event->name, "sched_process_exit"))
+ process_sched_exit_event(event, cpu, timestamp, thread);
}
static int
@@ -1053,7 +1170,7 @@ static const struct option options[] = {
int cmd_sched(int argc, const char **argv, const char *prefix __used)
{
- long nr_iterations = LONG_MAX, i;
+ long nr_iterations = 10, i;
symbol__init();
page_size = getpagesize();
@@ -1068,8 +1185,7 @@ int cmd_sched(int argc, const char **argv, const char *prefix __used)
usage_with_options(annotate_usage, options);
}
-
- setup_pager();
+// setup_pager();
calibrate_run_measurement_overhead();
calibrate_sleep_measurement_overhead();