mirror of
https://github.com/torvalds/linux.git
synced 2024-10-31 17:21:49 +00:00
perf sched: Remove die() calls
Just use pr_err() + return -1 and perf_session__process_events to abort when some event would call die(), then let the perf's main() exit doing whatever it needs. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-88cwdogxqomsy9tfr8r0as58@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
parent
32c7f7383a
commit
a116e05dcf
@ -423,8 +423,8 @@ static int self_open_counters(void)
|
||||
fd = sys_perf_event_open(&attr, 0, -1, -1, 0);
|
||||
|
||||
if (fd < 0)
|
||||
die("Error: sys_perf_event_open() syscall returned"
|
||||
"with %d (%s)\n", fd, strerror(errno));
|
||||
pr_debug("Error: sys_perf_event_open() syscall returned"
|
||||
"with %d (%s)\n", fd, strerror(errno));
|
||||
return fd;
|
||||
}
|
||||
|
||||
@ -450,7 +450,8 @@ static void *thread_func(void *ctx)
|
||||
sprintf(comm2, ":%s", this_task->comm);
|
||||
prctl(PR_SET_NAME, comm2);
|
||||
fd = self_open_counters();
|
||||
|
||||
if (fd < 0)
|
||||
return NULL;
|
||||
again:
|
||||
ret = sem_post(&this_task->ready_for_work);
|
||||
BUG_ON(ret);
|
||||
@ -726,30 +727,30 @@ struct trace_migrate_task_event {
|
||||
};
|
||||
|
||||
struct trace_sched_handler {
|
||||
void (*switch_event)(struct trace_switch_event *,
|
||||
struct machine *,
|
||||
struct event_format *,
|
||||
int (*switch_event)(struct trace_switch_event *event,
|
||||
struct machine *machine,
|
||||
struct event_format *tp_format,
|
||||
struct perf_sample *sample);
|
||||
|
||||
int (*runtime_event)(struct trace_runtime_event *event,
|
||||
struct machine *machine,
|
||||
struct perf_sample *sample);
|
||||
|
||||
void (*runtime_event)(struct trace_runtime_event *,
|
||||
struct machine *,
|
||||
struct perf_sample *sample);
|
||||
int (*wakeup_event)(struct trace_wakeup_event *event,
|
||||
struct machine *machine,
|
||||
struct event_format *tp_format,
|
||||
struct perf_sample *sample);
|
||||
|
||||
void (*wakeup_event)(struct trace_wakeup_event *,
|
||||
struct machine *,
|
||||
struct event_format *,
|
||||
struct perf_sample *sample);
|
||||
int (*fork_event)(struct trace_fork_event *event,
|
||||
struct event_format *tp_format);
|
||||
|
||||
void (*fork_event)(struct trace_fork_event *,
|
||||
struct event_format *event);
|
||||
|
||||
void (*migrate_task_event)(struct trace_migrate_task_event *,
|
||||
struct machine *machine,
|
||||
struct perf_sample *sample);
|
||||
int (*migrate_task_event)(struct trace_migrate_task_event *event,
|
||||
struct machine *machine,
|
||||
struct perf_sample *sample);
|
||||
};
|
||||
|
||||
|
||||
static void
|
||||
static int
|
||||
replay_wakeup_event(struct trace_wakeup_event *wakeup_event,
|
||||
struct machine *machine __used,
|
||||
struct event_format *event, struct perf_sample *sample)
|
||||
@ -769,11 +770,12 @@ replay_wakeup_event(struct trace_wakeup_event *wakeup_event,
|
||||
wakee = register_pid(wakeup_event->pid, wakeup_event->comm);
|
||||
|
||||
add_sched_event_wakeup(waker, sample->time, wakee);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static u64 cpu_last_switched[MAX_CPUS];
|
||||
|
||||
static void
|
||||
static int
|
||||
replay_switch_event(struct trace_switch_event *switch_event,
|
||||
struct machine *machine __used,
|
||||
struct event_format *event,
|
||||
@ -788,7 +790,7 @@ replay_switch_event(struct trace_switch_event *switch_event,
|
||||
printf("sched_switch event %p\n", event);
|
||||
|
||||
if (cpu >= MAX_CPUS || cpu < 0)
|
||||
return;
|
||||
return 0;
|
||||
|
||||
timestamp0 = cpu_last_switched[cpu];
|
||||
if (timestamp0)
|
||||
@ -796,8 +798,10 @@ replay_switch_event(struct trace_switch_event *switch_event,
|
||||
else
|
||||
delta = 0;
|
||||
|
||||
if (delta < 0)
|
||||
die("hm, delta: %" PRIu64 " < 0 ?\n", delta);
|
||||
if (delta < 0) {
|
||||
pr_debug("hm, delta: %" PRIu64 " < 0 ?\n", delta);
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (verbose) {
|
||||
printf(" ... switch from %s/%d to %s/%d [ran %" PRIu64 " nsecs]\n",
|
||||
@ -813,10 +817,12 @@ replay_switch_event(struct trace_switch_event *switch_event,
|
||||
|
||||
add_sched_event_run(prev, timestamp, delta);
|
||||
add_sched_event_sleep(prev, timestamp, switch_event->prev_state);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
static int
|
||||
replay_fork_event(struct trace_fork_event *fork_event,
|
||||
struct event_format *event)
|
||||
{
|
||||
@ -827,6 +833,7 @@ replay_fork_event(struct trace_fork_event *fork_event,
|
||||
}
|
||||
register_pid(fork_event->parent_pid, fork_event->parent_comm);
|
||||
register_pid(fork_event->child_pid, fork_event->child_comm);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct trace_sched_handler replay_ops = {
|
||||
@ -911,22 +918,26 @@ __thread_latency_insert(struct rb_root *root, struct work_atoms *data,
|
||||
rb_insert_color(&data->node, root);
|
||||
}
|
||||
|
||||
static void thread_atoms_insert(struct thread *thread)
|
||||
static int thread_atoms_insert(struct thread *thread)
|
||||
{
|
||||
struct work_atoms *atoms = zalloc(sizeof(*atoms));
|
||||
if (!atoms)
|
||||
die("No memory");
|
||||
if (!atoms) {
|
||||
pr_err("No memory at %s\n", __func__);
|
||||
return -1;
|
||||
}
|
||||
|
||||
atoms->thread = thread;
|
||||
INIT_LIST_HEAD(&atoms->work_list);
|
||||
__thread_latency_insert(&atom_root, atoms, &cmp_pid);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
static int
|
||||
latency_fork_event(struct trace_fork_event *fork_event __used,
|
||||
struct event_format *event __used)
|
||||
{
|
||||
/* should insert the newcomer */
|
||||
return 0;
|
||||
}
|
||||
|
||||
__used
|
||||
@ -937,14 +948,16 @@ static char sched_out_state(struct trace_switch_event *switch_event)
|
||||
return str[switch_event->prev_state];
|
||||
}
|
||||
|
||||
static void
|
||||
static int
|
||||
add_sched_out_event(struct work_atoms *atoms,
|
||||
char run_state,
|
||||
u64 timestamp)
|
||||
{
|
||||
struct work_atom *atom = zalloc(sizeof(*atom));
|
||||
if (!atom)
|
||||
die("Non memory");
|
||||
if (!atom) {
|
||||
pr_err("Non memory at %s", __func__);
|
||||
return -1;
|
||||
}
|
||||
|
||||
atom->sched_out_time = timestamp;
|
||||
|
||||
@ -954,6 +967,7 @@ add_sched_out_event(struct work_atoms *atoms,
|
||||
}
|
||||
|
||||
list_add_tail(&atom->list, &atoms->work_list);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
@ -1000,7 +1014,7 @@ add_sched_in_event(struct work_atoms *atoms, u64 timestamp)
|
||||
atoms->nb_atoms++;
|
||||
}
|
||||
|
||||
static void
|
||||
static int
|
||||
latency_switch_event(struct trace_switch_event *switch_event,
|
||||
struct machine *machine,
|
||||
struct event_format *event __used,
|
||||
@ -1021,38 +1035,49 @@ latency_switch_event(struct trace_switch_event *switch_event,
|
||||
else
|
||||
delta = 0;
|
||||
|
||||
if (delta < 0)
|
||||
die("hm, delta: %" PRIu64 " < 0 ?\n", delta);
|
||||
|
||||
if (delta < 0) {
|
||||
pr_err("hm, delta: %" PRIu64 " < 0 ?\n", delta);
|
||||
return -1;
|
||||
}
|
||||
|
||||
sched_out = machine__findnew_thread(machine, switch_event->prev_pid);
|
||||
sched_in = machine__findnew_thread(machine, switch_event->next_pid);
|
||||
|
||||
out_events = thread_atoms_search(&atom_root, sched_out, &cmp_pid);
|
||||
if (!out_events) {
|
||||
thread_atoms_insert(sched_out);
|
||||
if (thread_atoms_insert(sched_out))
|
||||
return -1;
|
||||
out_events = thread_atoms_search(&atom_root, sched_out, &cmp_pid);
|
||||
if (!out_events)
|
||||
die("out-event: Internal tree error");
|
||||
if (!out_events) {
|
||||
pr_err("out-event: Internal tree error");
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
add_sched_out_event(out_events, sched_out_state(switch_event), timestamp);
|
||||
if (add_sched_out_event(out_events, sched_out_state(switch_event), timestamp))
|
||||
return -1;
|
||||
|
||||
in_events = thread_atoms_search(&atom_root, sched_in, &cmp_pid);
|
||||
if (!in_events) {
|
||||
thread_atoms_insert(sched_in);
|
||||
if (thread_atoms_insert(sched_in))
|
||||
return -1;
|
||||
in_events = thread_atoms_search(&atom_root, sched_in, &cmp_pid);
|
||||
if (!in_events)
|
||||
die("in-event: Internal tree error");
|
||||
if (!in_events) {
|
||||
pr_err("in-event: Internal tree error");
|
||||
return -1;
|
||||
}
|
||||
/*
|
||||
* Take came in we have not heard about yet,
|
||||
* add in an initial atom in runnable state:
|
||||
*/
|
||||
add_sched_out_event(in_events, 'R', timestamp);
|
||||
if (add_sched_out_event(in_events, 'R', timestamp))
|
||||
return -1;
|
||||
}
|
||||
add_sched_in_event(in_events, timestamp);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
static int
|
||||
latency_runtime_event(struct trace_runtime_event *runtime_event,
|
||||
struct machine *machine, struct perf_sample *sample)
|
||||
{
|
||||
@ -1063,17 +1088,22 @@ latency_runtime_event(struct trace_runtime_event *runtime_event,
|
||||
|
||||
BUG_ON(cpu >= MAX_CPUS || cpu < 0);
|
||||
if (!atoms) {
|
||||
thread_atoms_insert(thread);
|
||||
if (thread_atoms_insert(thread))
|
||||
return -1;
|
||||
atoms = thread_atoms_search(&atom_root, thread, &cmp_pid);
|
||||
if (!atoms)
|
||||
die("in-event: Internal tree error");
|
||||
add_sched_out_event(atoms, 'R', timestamp);
|
||||
if (!atoms) {
|
||||
pr_debug("in-event: Internal tree error");
|
||||
return -1;
|
||||
}
|
||||
if (add_sched_out_event(atoms, 'R', timestamp))
|
||||
return -1;
|
||||
}
|
||||
|
||||
add_runtime_event(atoms, runtime_event->runtime, timestamp);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
static int
|
||||
latency_wakeup_event(struct trace_wakeup_event *wakeup_event,
|
||||
struct machine *machine, struct event_format *event __used,
|
||||
struct perf_sample *sample)
|
||||
@ -1085,16 +1115,20 @@ latency_wakeup_event(struct trace_wakeup_event *wakeup_event,
|
||||
|
||||
/* Note for later, it may be interesting to observe the failing cases */
|
||||
if (!wakeup_event->success)
|
||||
return;
|
||||
return 0;
|
||||
|
||||
wakee = machine__findnew_thread(machine, wakeup_event->pid);
|
||||
atoms = thread_atoms_search(&atom_root, wakee, &cmp_pid);
|
||||
if (!atoms) {
|
||||
thread_atoms_insert(wakee);
|
||||
if (thread_atoms_insert(wakee))
|
||||
return -1;
|
||||
atoms = thread_atoms_search(&atom_root, wakee, &cmp_pid);
|
||||
if (!atoms)
|
||||
die("wakeup-event: Internal tree error");
|
||||
add_sched_out_event(atoms, 'S', timestamp);
|
||||
if (!atoms) {
|
||||
pr_debug("wakeup-event: Internal tree error");
|
||||
return -1;
|
||||
}
|
||||
if (add_sched_out_event(atoms, 'S', timestamp))
|
||||
return -1;
|
||||
}
|
||||
|
||||
BUG_ON(list_empty(&atoms->work_list));
|
||||
@ -1112,14 +1146,15 @@ latency_wakeup_event(struct trace_wakeup_event *wakeup_event,
|
||||
nr_timestamps++;
|
||||
if (atom->sched_out_time > timestamp) {
|
||||
nr_unordered_timestamps++;
|
||||
return;
|
||||
return 0;
|
||||
}
|
||||
|
||||
atom->state = THREAD_WAIT_CPU;
|
||||
atom->wake_up_time = timestamp;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
static int
|
||||
latency_migrate_task_event(struct trace_migrate_task_event *migrate_task_event,
|
||||
struct machine *machine, struct perf_sample *sample)
|
||||
{
|
||||
@ -1132,17 +1167,21 @@ latency_migrate_task_event(struct trace_migrate_task_event *migrate_task_event,
|
||||
* Only need to worry about migration when profiling one CPU.
|
||||
*/
|
||||
if (profile_cpu == -1)
|
||||
return;
|
||||
return 0;
|
||||
|
||||
migrant = machine__findnew_thread(machine, migrate_task_event->pid);
|
||||
atoms = thread_atoms_search(&atom_root, migrant, &cmp_pid);
|
||||
if (!atoms) {
|
||||
thread_atoms_insert(migrant);
|
||||
if (thread_atoms_insert(migrant))
|
||||
return -1;
|
||||
register_pid(migrant->pid, migrant->comm);
|
||||
atoms = thread_atoms_search(&atom_root, migrant, &cmp_pid);
|
||||
if (!atoms)
|
||||
die("migration-event: Internal tree error");
|
||||
add_sched_out_event(atoms, 'R', timestamp);
|
||||
if (!atoms) {
|
||||
pr_debug("migration-event: Internal tree error");
|
||||
return -1;
|
||||
}
|
||||
if (add_sched_out_event(atoms, 'R', timestamp))
|
||||
return -1;
|
||||
}
|
||||
|
||||
BUG_ON(list_empty(&atoms->work_list));
|
||||
@ -1154,6 +1193,8 @@ latency_migrate_task_event(struct trace_migrate_task_event *migrate_task_event,
|
||||
|
||||
if (atom->sched_out_time > timestamp)
|
||||
nr_unordered_timestamps++;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct trace_sched_handler lat_ops = {
|
||||
@ -1328,7 +1369,7 @@ static void sort_lat(void)
|
||||
|
||||
static struct trace_sched_handler *trace_handler;
|
||||
|
||||
static void
|
||||
static int
|
||||
process_sched_wakeup_event(struct perf_tool *tool __used,
|
||||
struct event_format *event,
|
||||
struct perf_sample *sample,
|
||||
@ -1337,6 +1378,7 @@ process_sched_wakeup_event(struct perf_tool *tool __used,
|
||||
{
|
||||
void *data = sample->raw_data;
|
||||
struct trace_wakeup_event wakeup_event;
|
||||
int err = 0;
|
||||
|
||||
FILL_COMMON_FIELDS(wakeup_event, event, data);
|
||||
|
||||
@ -1347,7 +1389,9 @@ process_sched_wakeup_event(struct perf_tool *tool __used,
|
||||
FILL_FIELD(wakeup_event, cpu, event, data);
|
||||
|
||||
if (trace_handler->wakeup_event)
|
||||
trace_handler->wakeup_event(&wakeup_event, machine, event, sample);
|
||||
err = trace_handler->wakeup_event(&wakeup_event, machine, event, sample);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -1363,7 +1407,7 @@ static struct thread *curr_thread[MAX_CPUS];
|
||||
static char next_shortname1 = 'A';
|
||||
static char next_shortname2 = '0';
|
||||
|
||||
static void
|
||||
static int
|
||||
map_switch_event(struct trace_switch_event *switch_event,
|
||||
struct machine *machine,
|
||||
struct event_format *event __used,
|
||||
@ -1387,9 +1431,10 @@ map_switch_event(struct trace_switch_event *switch_event,
|
||||
else
|
||||
delta = 0;
|
||||
|
||||
if (delta < 0)
|
||||
die("hm, delta: %" PRIu64 " < 0 ?\n", delta);
|
||||
|
||||
if (delta < 0) {
|
||||
pr_debug("hm, delta: %" PRIu64 " < 0 ?\n", delta);
|
||||
return -1;
|
||||
}
|
||||
|
||||
sched_out = machine__findnew_thread(machine, switch_event->prev_pid);
|
||||
sched_in = machine__findnew_thread(machine, switch_event->next_pid);
|
||||
@ -1438,16 +1483,18 @@ map_switch_event(struct trace_switch_event *switch_event,
|
||||
} else {
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
static int
|
||||
process_sched_switch_event(struct perf_tool *tool __used,
|
||||
struct event_format *event,
|
||||
struct perf_sample *sample,
|
||||
struct machine *machine,
|
||||
struct thread *thread __used)
|
||||
{
|
||||
int this_cpu = sample->cpu;
|
||||
int this_cpu = sample->cpu, err = 0;
|
||||
void *data = sample->raw_data;
|
||||
struct trace_switch_event switch_event;
|
||||
|
||||
@ -1470,12 +1517,13 @@ process_sched_switch_event(struct perf_tool *tool __used,
|
||||
nr_context_switch_bugs++;
|
||||
}
|
||||
if (trace_handler->switch_event)
|
||||
trace_handler->switch_event(&switch_event, machine, event, sample);
|
||||
err = trace_handler->switch_event(&switch_event, machine, event, sample);
|
||||
|
||||
curr_pid[this_cpu] = switch_event.next_pid;
|
||||
return err;
|
||||
}
|
||||
|
||||
static void
|
||||
static int
|
||||
process_sched_runtime_event(struct perf_tool *tool __used,
|
||||
struct event_format *event,
|
||||
struct perf_sample *sample,
|
||||
@ -1484,6 +1532,7 @@ process_sched_runtime_event(struct perf_tool *tool __used,
|
||||
{
|
||||
void *data = sample->raw_data;
|
||||
struct trace_runtime_event runtime_event;
|
||||
int err = 0;
|
||||
|
||||
FILL_ARRAY(runtime_event, comm, event, data);
|
||||
FILL_FIELD(runtime_event, pid, event, data);
|
||||
@ -1491,10 +1540,12 @@ process_sched_runtime_event(struct perf_tool *tool __used,
|
||||
FILL_FIELD(runtime_event, vruntime, event, data);
|
||||
|
||||
if (trace_handler->runtime_event)
|
||||
trace_handler->runtime_event(&runtime_event, machine, sample);
|
||||
err = trace_handler->runtime_event(&runtime_event, machine, sample);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static void
|
||||
static int
|
||||
process_sched_fork_event(struct perf_tool *tool __used,
|
||||
struct event_format *event,
|
||||
struct perf_sample *sample,
|
||||
@ -1503,6 +1554,7 @@ process_sched_fork_event(struct perf_tool *tool __used,
|
||||
{
|
||||
void *data = sample->raw_data;
|
||||
struct trace_fork_event fork_event;
|
||||
int err = 0;
|
||||
|
||||
FILL_COMMON_FIELDS(fork_event, event, data);
|
||||
|
||||
@ -1512,10 +1564,12 @@ process_sched_fork_event(struct perf_tool *tool __used,
|
||||
FILL_FIELD(fork_event, child_pid, event, data);
|
||||
|
||||
if (trace_handler->fork_event)
|
||||
trace_handler->fork_event(&fork_event, event);
|
||||
err = trace_handler->fork_event(&fork_event, event);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static void
|
||||
static int
|
||||
process_sched_exit_event(struct perf_tool *tool __used,
|
||||
struct event_format *event,
|
||||
struct perf_sample *sample __used,
|
||||
@ -1524,9 +1578,11 @@ process_sched_exit_event(struct perf_tool *tool __used,
|
||||
{
|
||||
if (verbose)
|
||||
printf("sched_exit event %p\n", event);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
static int
|
||||
process_sched_migrate_task_event(struct perf_tool *tool __used,
|
||||
struct event_format *event,
|
||||
struct perf_sample *sample,
|
||||
@ -1535,6 +1591,7 @@ process_sched_migrate_task_event(struct perf_tool *tool __used,
|
||||
{
|
||||
void *data = sample->raw_data;
|
||||
struct trace_migrate_task_event migrate_task_event;
|
||||
int err = 0;
|
||||
|
||||
FILL_COMMON_FIELDS(migrate_task_event, event, data);
|
||||
|
||||
@ -1544,13 +1601,16 @@ process_sched_migrate_task_event(struct perf_tool *tool __used,
|
||||
FILL_FIELD(migrate_task_event, cpu, event, data);
|
||||
|
||||
if (trace_handler->migrate_task_event)
|
||||
trace_handler->migrate_task_event(&migrate_task_event, machine, sample);
|
||||
err = trace_handler->migrate_task_event(&migrate_task_event, machine, sample);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
typedef void (*tracepoint_handler)(struct perf_tool *tool, struct event_format *event,
|
||||
struct perf_sample *sample,
|
||||
struct machine *machine,
|
||||
struct thread *thread);
|
||||
typedef int (*tracepoint_handler)(struct perf_tool *tool,
|
||||
struct event_format *tp_format,
|
||||
struct perf_sample *sample,
|
||||
struct machine *machine,
|
||||
struct thread *thread);
|
||||
|
||||
static int perf_sched__process_tracepoint_sample(struct perf_tool *tool __used,
|
||||
union perf_event *event __used,
|
||||
@ -1559,6 +1619,7 @@ static int perf_sched__process_tracepoint_sample(struct perf_tool *tool __used,
|
||||
struct machine *machine)
|
||||
{
|
||||
struct thread *thread = machine__findnew_thread(machine, sample->pid);
|
||||
int err = 0;
|
||||
|
||||
if (thread == NULL) {
|
||||
pr_debug("problem processing %s event, skipping it.\n",
|
||||
@ -1571,10 +1632,10 @@ static int perf_sched__process_tracepoint_sample(struct perf_tool *tool __used,
|
||||
|
||||
if (evsel->handler.func != NULL) {
|
||||
tracepoint_handler f = evsel->handler.func;
|
||||
f(tool, evsel->tp_format, sample, machine, thread);
|
||||
err = f(tool, evsel->tp_format, sample, machine, thread);
|
||||
}
|
||||
|
||||
return 0;
|
||||
return err;
|
||||
}
|
||||
|
||||
static struct perf_tool perf_sched = {
|
||||
@ -1585,9 +1646,8 @@ static struct perf_tool perf_sched = {
|
||||
.ordered_samples = true,
|
||||
};
|
||||
|
||||
static void read_events(bool destroy, struct perf_session **psession)
|
||||
static int read_events(bool destroy, struct perf_session **psession)
|
||||
{
|
||||
int err = -EINVAL;
|
||||
const struct perf_evsel_str_handler handlers[] = {
|
||||
{ "sched:sched_switch", process_sched_switch_event, },
|
||||
{ "sched:sched_stat_runtime", process_sched_runtime_event, },
|
||||
@ -1600,16 +1660,20 @@ static void read_events(bool destroy, struct perf_session **psession)
|
||||
struct perf_session *session;
|
||||
|
||||
session = perf_session__new(input_name, O_RDONLY, 0, false, &perf_sched);
|
||||
if (session == NULL)
|
||||
die("No Memory");
|
||||
if (session == NULL) {
|
||||
pr_debug("No Memory for session\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
err = perf_session__set_tracepoints_handlers(session, handlers);
|
||||
assert(err == 0);
|
||||
if (perf_session__set_tracepoints_handlers(session, handlers))
|
||||
goto out_delete;
|
||||
|
||||
if (perf_session__has_traces(session, "record -R")) {
|
||||
err = perf_session__process_events(session, &perf_sched);
|
||||
if (err)
|
||||
die("Failed to process events, error %d", err);
|
||||
int err = perf_session__process_events(session, &perf_sched);
|
||||
if (err) {
|
||||
pr_err("Failed to process events, error %d", err);
|
||||
goto out_delete;
|
||||
}
|
||||
|
||||
nr_events = session->hists.stats.nr_events[0];
|
||||
nr_lost_events = session->hists.stats.total_lost;
|
||||
@ -1621,6 +1685,12 @@ static void read_events(bool destroy, struct perf_session **psession)
|
||||
|
||||
if (psession)
|
||||
*psession = session;
|
||||
|
||||
return 0;
|
||||
|
||||
out_delete:
|
||||
perf_session__delete(session);
|
||||
return -1;
|
||||
}
|
||||
|
||||
static void print_bad_events(void)
|
||||
@ -1653,13 +1723,14 @@ static void print_bad_events(void)
|
||||
}
|
||||
}
|
||||
|
||||
static void __cmd_lat(void)
|
||||
static int __cmd_lat(void)
|
||||
{
|
||||
struct rb_node *next;
|
||||
struct perf_session *session;
|
||||
|
||||
setup_pager();
|
||||
read_events(false, &session);
|
||||
if (read_events(false, &session))
|
||||
return -1;
|
||||
sort_lat();
|
||||
|
||||
printf("\n ---------------------------------------------------------------------------------------------------------------\n");
|
||||
@ -1686,6 +1757,7 @@ static void __cmd_lat(void)
|
||||
printf("\n");
|
||||
|
||||
perf_session__delete(session);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct trace_sched_handler map_ops = {
|
||||
@ -1695,16 +1767,18 @@ static struct trace_sched_handler map_ops = {
|
||||
.fork_event = NULL,
|
||||
};
|
||||
|
||||
static void __cmd_map(void)
|
||||
static int __cmd_map(void)
|
||||
{
|
||||
max_cpu = sysconf(_SC_NPROCESSORS_CONF);
|
||||
|
||||
setup_pager();
|
||||
read_events(true, NULL);
|
||||
if (read_events(true, NULL))
|
||||
return -1;
|
||||
print_bad_events();
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void __cmd_replay(void)
|
||||
static int __cmd_replay(void)
|
||||
{
|
||||
unsigned long i;
|
||||
|
||||
@ -1713,7 +1787,8 @@ static void __cmd_replay(void)
|
||||
|
||||
test_calibrations();
|
||||
|
||||
read_events(true, NULL);
|
||||
if (read_events(true, NULL))
|
||||
return -1;
|
||||
|
||||
printf("nr_run_events: %ld\n", nr_run_events);
|
||||
printf("nr_sleep_events: %ld\n", nr_sleep_events);
|
||||
@ -1734,6 +1809,8 @@ static void __cmd_replay(void)
|
||||
printf("------------------------------------------------------------\n");
|
||||
for (i = 0; i < replay_repeat; i++)
|
||||
run_one_test();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
@ -1865,11 +1942,11 @@ int cmd_sched(int argc, const char **argv, const char *prefix __used)
|
||||
usage_with_options(latency_usage, latency_options);
|
||||
}
|
||||
setup_sorting();
|
||||
__cmd_lat();
|
||||
return __cmd_lat();
|
||||
} else if (!strcmp(argv[0], "map")) {
|
||||
trace_handler = &map_ops;
|
||||
setup_sorting();
|
||||
__cmd_map();
|
||||
return __cmd_map();
|
||||
} else if (!strncmp(argv[0], "rep", 3)) {
|
||||
trace_handler = &replay_ops;
|
||||
if (argc) {
|
||||
@ -1877,7 +1954,7 @@ int cmd_sched(int argc, const char **argv, const char *prefix __used)
|
||||
if (argc)
|
||||
usage_with_options(replay_usage, replay_options);
|
||||
}
|
||||
__cmd_replay();
|
||||
return __cmd_replay();
|
||||
} else {
|
||||
usage_with_options(sched_usage, sched_options);
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user