diff options
Diffstat (limited to 'tools/perf/builtin-sched.c')
| -rw-r--r-- | tools/perf/builtin-sched.c | 1658 |
1 files changed, 755 insertions, 903 deletions
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c index 55f3b5dcc73..c38d06c0477 100644 --- a/tools/perf/builtin-sched.c +++ b/tools/perf/builtin-sched.c @@ -2,11 +2,14 @@ #include "perf.h" #include "util/util.h" +#include "util/evlist.h" #include "util/cache.h" +#include "util/evsel.h" #include "util/symbol.h" #include "util/thread.h" #include "util/header.h" #include "util/session.h" +#include "util/tool.h" #include "util/parse-options.h" #include "util/trace-event.h" @@ -14,31 +17,18 @@ #include "util/debug.h" #include <sys/prctl.h> +#include <sys/resource.h> #include <semaphore.h> #include <pthread.h> #include <math.h> -static char const *input_name = "perf.data"; - -static char default_sort_order[] = "avg, max, switch, runtime"; -static const char *sort_order = default_sort_order; - -static int profile_cpu = -1; - #define PR_SET_NAME 15 /* Set process name */ #define MAX_CPUS 4096 - -static u64 run_measurement_overhead; -static u64 sleep_measurement_overhead; - #define COMM_LEN 20 #define SYM_LEN 129 - #define MAX_PID 65536 -static unsigned long nr_tasks; - struct sched_atom; struct task_desc { @@ -76,45 +66,7 @@ struct sched_atom { struct task_desc *wakee; }; -static struct task_desc *pid_to_task[MAX_PID]; - -static struct task_desc **tasks; - -static pthread_mutex_t start_work_mutex = PTHREAD_MUTEX_INITIALIZER; -static u64 start_time; - -static pthread_mutex_t work_done_wait_mutex = PTHREAD_MUTEX_INITIALIZER; - -static unsigned long nr_run_events; -static unsigned long nr_sleep_events; -static unsigned long nr_wakeup_events; - -static unsigned long nr_sleep_corrections; -static unsigned long nr_run_events_optimized; - -static unsigned long targetless_wakeups; -static unsigned long multitarget_wakeups; - -static u64 cpu_usage; -static u64 runavg_cpu_usage; -static u64 parent_cpu_usage; -static u64 runavg_parent_cpu_usage; - -static unsigned long nr_runs; -static u64 sum_runtime; -static u64 sum_fluct; -static u64 run_avg; - -static unsigned int replay_repeat = 10; -static unsigned long nr_timestamps; -static unsigned long nr_unordered_timestamps; -static unsigned long nr_state_machine_bugs; -static unsigned long nr_context_switch_bugs; -static unsigned long nr_events; -static unsigned long nr_lost_chunks; -static unsigned long nr_lost_events; - -#define TASK_STATE_TO_CHAR_STR "RSDTtZX" +#define TASK_STATE_TO_CHAR_STR "RSDTtZXxKWP" enum thread_state { THREAD_SLEEPING = 0, @@ -145,11 +97,78 @@ struct work_atoms { typedef int (*sort_fn_t)(struct work_atoms *, struct work_atoms *); -static struct rb_root atom_root, sorted_atom_root; +struct perf_sched; + +struct trace_sched_handler { + int (*switch_event)(struct perf_sched *sched, struct perf_evsel *evsel, + struct perf_sample *sample, struct machine *machine); + + int (*runtime_event)(struct perf_sched *sched, struct perf_evsel *evsel, + struct perf_sample *sample, struct machine *machine); + + int (*wakeup_event)(struct perf_sched *sched, struct perf_evsel *evsel, + struct perf_sample *sample, struct machine *machine); -static u64 all_runtime; -static u64 all_count; + /* PERF_RECORD_FORK event, not sched_process_fork tracepoint */ + int (*fork_event)(struct perf_sched *sched, union perf_event *event, + struct machine *machine); + + int (*migrate_task_event)(struct perf_sched *sched, + struct perf_evsel *evsel, + struct perf_sample *sample, + struct machine *machine); +}; +struct perf_sched { + struct perf_tool tool; + const char *sort_order; + unsigned long nr_tasks; + struct task_desc *pid_to_task[MAX_PID]; + struct task_desc **tasks; + const struct trace_sched_handler *tp_handler; + pthread_mutex_t start_work_mutex; + pthread_mutex_t work_done_wait_mutex; + int profile_cpu; +/* + * Track the current task - that way we can know whether there's any + * weird events, such as a task being switched away that is not current. + */ + int max_cpu; + u32 curr_pid[MAX_CPUS]; + struct thread *curr_thread[MAX_CPUS]; + char next_shortname1; + char next_shortname2; + unsigned int replay_repeat; + unsigned long nr_run_events; + unsigned long nr_sleep_events; + unsigned long nr_wakeup_events; + unsigned long nr_sleep_corrections; + unsigned long nr_run_events_optimized; + unsigned long targetless_wakeups; + unsigned long multitarget_wakeups; + unsigned long nr_runs; + unsigned long nr_timestamps; + unsigned long nr_unordered_timestamps; + unsigned long nr_context_switch_bugs; + unsigned long nr_events; + unsigned long nr_lost_chunks; + unsigned long nr_lost_events; + u64 run_measurement_overhead; + u64 sleep_measurement_overhead; + u64 start_time; + u64 cpu_usage; + u64 runavg_cpu_usage; + u64 parent_cpu_usage; + u64 runavg_parent_cpu_usage; + u64 sum_runtime; + u64 sum_fluct; + u64 run_avg; + u64 all_runtime; + u64 all_count; + u64 cpu_last_switched[MAX_CPUS]; + struct rb_root atom_root, sorted_atom_root; + struct list_head sort_list, cmp_pid; +}; static u64 get_nsecs(void) { @@ -160,13 +179,13 @@ static u64 get_nsecs(void) return ts.tv_sec * 1000000000ULL + ts.tv_nsec; } -static void burn_nsecs(u64 nsecs) +static void burn_nsecs(struct perf_sched *sched, u64 nsecs) { u64 T0 = get_nsecs(), T1; do { T1 = get_nsecs(); - } while (T1 + run_measurement_overhead < T0 + nsecs); + } while (T1 + sched->run_measurement_overhead < T0 + nsecs); } static void sleep_nsecs(u64 nsecs) @@ -179,24 +198,24 @@ static void sleep_nsecs(u64 nsecs) nanosleep(&ts, NULL); } -static void calibrate_run_measurement_overhead(void) +static void calibrate_run_measurement_overhead(struct perf_sched *sched) { u64 T0, T1, delta, min_delta = 1000000000ULL; int i; for (i = 0; i < 10; i++) { T0 = get_nsecs(); - burn_nsecs(0); + burn_nsecs(sched, 0); T1 = get_nsecs(); delta = T1-T0; min_delta = min(min_delta, delta); } - run_measurement_overhead = min_delta; + sched->run_measurement_overhead = min_delta; - printf("run measurement overhead: %Ld nsecs\n", min_delta); + printf("run measurement overhead: %" PRIu64 " nsecs\n", min_delta); } -static void calibrate_sleep_measurement_overhead(void) +static void calibrate_sleep_measurement_overhead(struct perf_sched *sched) { u64 T0, T1, delta, min_delta = 1000000000ULL; int i; @@ -209,9 +228,9 @@ static void calibrate_sleep_measurement_overhead(void) min_delta = min(min_delta, delta); } min_delta -= 10000; - sleep_measurement_overhead = min_delta; + sched->sleep_measurement_overhead = min_delta; - printf("sleep measurement overhead: %Ld nsecs\n", min_delta); + printf("sleep measurement overhead: %" PRIu64 " nsecs\n", min_delta); } static struct sched_atom * @@ -242,8 +261,8 @@ static struct sched_atom *last_event(struct task_desc *task) return task->atoms[task->nr_events - 1]; } -static void -add_sched_event_run(struct task_desc *task, u64 timestamp, u64 duration) +static void add_sched_event_run(struct perf_sched *sched, struct task_desc *task, + u64 timestamp, u64 duration) { struct sched_atom *event, *curr_event = last_event(task); @@ -252,7 +271,7 @@ add_sched_event_run(struct task_desc *task, u64 timestamp, u64 duration) * to it: */ if (curr_event && curr_event->type == SCHED_EVENT_RUN) { - nr_run_events_optimized++; + sched->nr_run_events_optimized++; curr_event->duration += duration; return; } @@ -262,12 +281,11 @@ add_sched_event_run(struct task_desc *task, u64 timestamp, u64 duration) event->type = SCHED_EVENT_RUN; event->duration = duration; - nr_run_events++; + sched->nr_run_events++; } -static void -add_sched_event_wakeup(struct task_desc *task, u64 timestamp, - struct task_desc *wakee) +static void add_sched_event_wakeup(struct perf_sched *sched, struct task_desc *task, + u64 timestamp, struct task_desc *wakee) { struct sched_atom *event, *wakee_event; @@ -277,11 +295,11 @@ add_sched_event_wakeup(struct task_desc *task, u64 timestamp, wakee_event = last_event(wakee); if (!wakee_event || wakee_event->type != SCHED_EVENT_SLEEP) { - targetless_wakeups++; + sched->targetless_wakeups++; return; } if (wakee_event->wait_sem) { - multitarget_wakeups++; + sched->multitarget_wakeups++; return; } @@ -290,94 +308,89 @@ add_sched_event_wakeup(struct task_desc *task, u64 timestamp, wakee_event->specific_wait = 1; event->wait_sem = wakee_event->wait_sem; - nr_wakeup_events++; + sched->nr_wakeup_events++; } -static void -add_sched_event_sleep(struct task_desc *task, u64 timestamp, - u64 task_state __used) +static void add_sched_event_sleep(struct perf_sched *sched, struct task_desc *task, + u64 timestamp, u64 task_state __maybe_unused) { struct sched_atom *event = get_new_event(task, timestamp); event->type = SCHED_EVENT_SLEEP; - nr_sleep_events++; + sched->nr_sleep_events++; } -static struct task_desc *register_pid(unsigned long pid, const char *comm) +static struct task_desc *register_pid(struct perf_sched *sched, + unsigned long pid, const char *comm) { struct task_desc *task; BUG_ON(pid >= MAX_PID); - task = pid_to_task[pid]; + task = sched->pid_to_task[pid]; if (task) return task; task = zalloc(sizeof(*task)); task->pid = pid; - task->nr = nr_tasks; + task->nr = sched->nr_tasks; strcpy(task->comm, comm); /* * every task starts in sleeping state - this gets ignored * if there's no wakeup pointing to this sleep state: */ - add_sched_event_sleep(task, 0, 0); + add_sched_event_sleep(sched, task, 0, 0); - pid_to_task[pid] = task; - nr_tasks++; - tasks = realloc(tasks, nr_tasks*sizeof(struct task_task *)); - BUG_ON(!tasks); - tasks[task->nr] = task; + sched->pid_to_task[pid] = task; + sched->nr_tasks++; + sched->tasks = realloc(sched->tasks, sched->nr_tasks * sizeof(struct task_task *)); + BUG_ON(!sched->tasks); + sched->tasks[task->nr] = task; if (verbose) - printf("registered task #%ld, PID %ld (%s)\n", nr_tasks, pid, comm); + printf("registered task #%ld, PID %ld (%s)\n", sched->nr_tasks, pid, comm); return task; } -static void print_task_traces(void) +static void print_task_traces(struct perf_sched *sched) { struct task_desc *task; unsigned long i; - for (i = 0; i < nr_tasks; i++) { - task = tasks[i]; + for (i = 0; i < sched->nr_tasks; i++) { + task = sched->tasks[i]; printf("task %6ld (%20s:%10ld), nr_events: %ld\n", task->nr, task->comm, task->pid, task->nr_events); } } -static void add_cross_task_wakeups(void) +static void add_cross_task_wakeups(struct perf_sched *sched) { struct task_desc *task1, *task2; unsigned long i, j; - for (i = 0; i < nr_tasks; i++) { - task1 = tasks[i]; + for (i = 0; i < sched->nr_tasks; i++) { + task1 = sched->tasks[i]; j = i + 1; - if (j == nr_tasks) + if (j == sched->nr_tasks) j = 0; - task2 = tasks[j]; - add_sched_event_wakeup(task1, 0, task2); + task2 = sched->tasks[j]; + add_sched_event_wakeup(sched, task1, 0, task2); } } -static void -process_sched_event(struct task_desc *this_task __used, struct sched_atom *atom) +static void perf_sched__process_event(struct perf_sched *sched, + struct sched_atom *atom) { int ret = 0; - u64 now; - long long delta; - - now = get_nsecs(); - delta = start_time + atom->timestamp - now; switch (atom->type) { case SCHED_EVENT_RUN: - burn_nsecs(atom->duration); + burn_nsecs(sched, atom->duration); break; case SCHED_EVENT_SLEEP: if (atom->wait_sem) @@ -424,8 +437,8 @@ 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_err("Error: sys_perf_event_open() syscall returned " + "with %d (%s)\n", fd, strerror(errno)); return fd; } @@ -440,31 +453,41 @@ static u64 get_cpu_usage_nsec_self(int fd) return runtime; } +struct sched_thread_parms { + struct task_desc *task; + struct perf_sched *sched; +}; + static void *thread_func(void *ctx) { - struct task_desc *this_task = ctx; + struct sched_thread_parms *parms = ctx; + struct task_desc *this_task = parms->task; + struct perf_sched *sched = parms->sched; u64 cpu_usage_0, cpu_usage_1; unsigned long i, ret; char comm2[22]; int fd; + zfree(&parms); + 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); - ret = pthread_mutex_lock(&start_work_mutex); + ret = pthread_mutex_lock(&sched->start_work_mutex); BUG_ON(ret); - ret = pthread_mutex_unlock(&start_work_mutex); + ret = pthread_mutex_unlock(&sched->start_work_mutex); BUG_ON(ret); cpu_usage_0 = get_cpu_usage_nsec_self(fd); for (i = 0; i < this_task->nr_events; i++) { this_task->curr_event = i; - process_sched_event(this_task, this_task->atoms[i]); + perf_sched__process_event(sched, this_task->atoms[i]); } cpu_usage_1 = get_cpu_usage_nsec_self(fd); @@ -472,15 +495,15 @@ again: ret = sem_post(&this_task->work_done_sem); BUG_ON(ret); - ret = pthread_mutex_lock(&work_done_wait_mutex); + ret = pthread_mutex_lock(&sched->work_done_wait_mutex); BUG_ON(ret); - ret = pthread_mutex_unlock(&work_done_wait_mutex); + ret = pthread_mutex_unlock(&sched->work_done_wait_mutex); BUG_ON(ret); goto again; } -static void create_tasks(void) +static void create_tasks(struct perf_sched *sched) { struct task_desc *task; pthread_attr_t attr; @@ -489,372 +512,238 @@ static void create_tasks(void) err = pthread_attr_init(&attr); BUG_ON(err); - err = pthread_attr_setstacksize(&attr, (size_t)(16*1024)); + err = pthread_attr_setstacksize(&attr, + (size_t) max(16 * 1024, PTHREAD_STACK_MIN)); BUG_ON(err); - err = pthread_mutex_lock(&start_work_mutex); + err = pthread_mutex_lock(&sched->start_work_mutex); BUG_ON(err); - err = pthread_mutex_lock(&work_done_wait_mutex); + err = pthread_mutex_lock(&sched->work_done_wait_mutex); BUG_ON(err); - for (i = 0; i < nr_tasks; i++) { - task = tasks[i]; + for (i = 0; i < sched->nr_tasks; i++) { + struct sched_thread_parms *parms = malloc(sizeof(*parms)); + BUG_ON(parms == NULL); + parms->task = task = sched->tasks[i]; + parms->sched = sched; sem_init(&task->sleep_sem, 0, 0); sem_init(&task->ready_for_work, 0, 0); sem_init(&task->work_done_sem, 0, 0); task->curr_event = 0; - err = pthread_create(&task->thread, &attr, thread_func, task); + err = pthread_create(&task->thread, &attr, thread_func, parms); BUG_ON(err); } } -static void wait_for_tasks(void) +static void wait_for_tasks(struct perf_sched *sched) { u64 cpu_usage_0, cpu_usage_1; struct task_desc *task; unsigned long i, ret; - start_time = get_nsecs(); - cpu_usage = 0; - pthread_mutex_unlock(&work_done_wait_mutex); + sched->start_time = get_nsecs(); + sched->cpu_usage = 0; + pthread_mutex_unlock(&sched->work_done_wait_mutex); - for (i = 0; i < nr_tasks; i++) { - task = tasks[i]; + for (i = 0; i < sched->nr_tasks; i++) { + task = sched->tasks[i]; ret = sem_wait(&task->ready_for_work); BUG_ON(ret); sem_init(&task->ready_for_work, 0, 0); } - ret = pthread_mutex_lock(&work_done_wait_mutex); + ret = pthread_mutex_lock(&sched->work_done_wait_mutex); BUG_ON(ret); cpu_usage_0 = get_cpu_usage_nsec_parent(); - pthread_mutex_unlock(&start_work_mutex); + pthread_mutex_unlock(&sched->start_work_mutex); - for (i = 0; i < nr_tasks; i++) { - task = tasks[i]; + for (i = 0; i < sched->nr_tasks; i++) { + task = sched->tasks[i]; ret = sem_wait(&task->work_done_sem); BUG_ON(ret); sem_init(&task->work_done_sem, 0, 0); - cpu_usage += task->cpu_usage; + sched->cpu_usage += task->cpu_usage; task->cpu_usage = 0; } cpu_usage_1 = get_cpu_usage_nsec_parent(); - if (!runavg_cpu_usage) - runavg_cpu_usage = cpu_usage; - runavg_cpu_usage = (runavg_cpu_usage*9 + cpu_usage)/10; + if (!sched->runavg_cpu_usage) + sched->runavg_cpu_usage = sched->cpu_usage; + sched->runavg_cpu_usage = (sched->runavg_cpu_usage * 9 + sched->cpu_usage) / 10; - parent_cpu_usage = cpu_usage_1 - cpu_usage_0; - if (!runavg_parent_cpu_usage) - runavg_parent_cpu_usage = parent_cpu_usage; - runavg_parent_cpu_usage = (runavg_parent_cpu_usage*9 + - parent_cpu_usage)/10; + sched->parent_cpu_usage = cpu_usage_1 - cpu_usage_0; + if (!sched->runavg_parent_cpu_usage) + sched->runavg_parent_cpu_usage = sched->parent_cpu_usage; + sched->runavg_parent_cpu_usage = (sched->runavg_parent_cpu_usage * 9 + + sched->parent_cpu_usage)/10; - ret = pthread_mutex_lock(&start_work_mutex); + ret = pthread_mutex_lock(&sched->start_work_mutex); BUG_ON(ret); - for (i = 0; i < nr_tasks; i++) { - task = tasks[i]; + for (i = 0; i < sched->nr_tasks; i++) { + task = sched->tasks[i]; sem_init(&task->sleep_sem, 0, 0); task->curr_event = 0; } } -static void run_one_test(void) +static void run_one_test(struct perf_sched *sched) { - u64 T0, T1, delta, avg_delta, fluct, std_dev; + u64 T0, T1, delta, avg_delta, fluct; T0 = get_nsecs(); - wait_for_tasks(); + wait_for_tasks(sched); T1 = get_nsecs(); delta = T1 - T0; - sum_runtime += delta; - nr_runs++; + sched->sum_runtime += delta; + sched->nr_runs++; - avg_delta = sum_runtime / nr_runs; + avg_delta = sched->sum_runtime / sched->nr_runs; if (delta < avg_delta) fluct = avg_delta - delta; else fluct = delta - avg_delta; - sum_fluct += fluct; - std_dev = sum_fluct / nr_runs / sqrt(nr_runs); - if (!run_avg) - run_avg = delta; - run_avg = (run_avg*9 + delta)/10; + sched->sum_fluct += fluct; + if (!sched->run_avg) + sched->run_avg = delta; + sched->run_avg = (sched->run_avg * 9 + delta) / 10; - printf("#%-3ld: %0.3f, ", - nr_runs, (double)delta/1000000.0); + printf("#%-3ld: %0.3f, ", sched->nr_runs, (double)delta / 1000000.0); - printf("ravg: %0.2f, ", - (double)run_avg/1e6); + printf("ravg: %0.2f, ", (double)sched->run_avg / 1e6); printf("cpu: %0.2f / %0.2f", - (double)cpu_usage/1e6, (double)runavg_cpu_usage/1e6); + (double)sched->cpu_usage / 1e6, (double)sched->runavg_cpu_usage / 1e6); #if 0 /* * rusage statistics done by the parent, these are less - * accurate than the sum_exec_runtime based statistics: + * accurate than the sched->sum_exec_runtime based statistics: */ printf(" [%0.2f / %0.2f]", - (double)parent_cpu_usage/1e6, - (double)runavg_parent_cpu_usage/1e6); + (double)sched->parent_cpu_usage/1e6, + (double)sched->runavg_parent_cpu_usage/1e6); #endif printf("\n"); - if (nr_sleep_corrections) - printf(" (%ld sleep corrections)\n", nr_sleep_corrections); - nr_sleep_corrections = 0; + if (sched->nr_sleep_corrections) + printf(" (%ld sleep corrections)\n", sched->nr_sleep_corrections); + sched->nr_sleep_corrections = 0; } -static void test_calibrations(void) +static void test_calibrations(struct perf_sched *sched) { u64 T0, T1; T0 = get_nsecs(); - burn_nsecs(1e6); + burn_nsecs(sched, 1e6); T1 = get_nsecs(); - printf("the run test took %Ld nsecs\n", T1-T0); + printf("the run test took %" PRIu64 " nsecs\n", T1 - T0); T0 = get_nsecs(); sleep_nsecs(1e6); T1 = get_nsecs(); - printf("the sleep test took %Ld nsecs\n", T1-T0); + printf("the sleep test took %" PRIu64 " nsecs\n", T1 - T0); } -#define FILL_FIELD(ptr, field, event, data) \ - ptr.field = (typeof(ptr.field)) raw_field_value(event, #field, data) - -#define FILL_ARRAY(ptr, array, event, data) \ -do { \ - void *__array = raw_field_ptr(event, #array, data); \ - memcpy(ptr.array, __array, sizeof(ptr.array)); \ -} while(0) - -#define FILL_COMMON_FIELDS(ptr, event, data) \ -do { \ - FILL_FIELD(ptr, common_type, event, data); \ - FILL_FIELD(ptr, common_flags, event, data); \ - FILL_FIELD(ptr, common_preempt_count, event, data); \ - FILL_FIELD(ptr, common_pid, event, data); \ - FILL_FIELD(ptr, common_tgid, event, data); \ -} while (0) - - - -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; -}; - -struct trace_runtime_event { - u32 size; - - u16 common_type; - u8 common_flags; - u8 common_preempt_count; - u32 common_pid; - u32 common_tgid; - - char comm[16]; - u32 pid; - u64 runtime; - u64 vruntime; -}; - -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; -}; - -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; -}; - -struct trace_migrate_task_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 cpu; -}; - -struct trace_sched_handler { - void (*switch_event)(struct trace_switch_event *, - struct perf_session *, - struct event *, - int cpu, - u64 timestamp, - struct thread *thread); - - void (*runtime_event)(struct trace_runtime_event *, - struct perf_session *, - struct event *, - int cpu, - u64 timestamp, - struct thread *thread); - - void (*wakeup_event)(struct trace_wakeup_event *, - struct perf_session *, - struct event *, - int cpu, - u64 timestamp, - struct thread *thread); - - void (*fork_event)(struct trace_fork_event *, - struct event *, - int cpu, - u64 timestamp, - struct thread *thread); - - void (*migrate_task_event)(struct trace_migrate_task_event *, - struct perf_session *session, - struct event *, - int cpu, - u64 timestamp, - struct thread *thread); -}; - - -static void -replay_wakeup_event(struct trace_wakeup_event *wakeup_event, - struct perf_session *session __used, - struct event *event, - int cpu __used, - u64 timestamp __used, - struct thread *thread __used) +static int +replay_wakeup_event(struct perf_sched *sched, + struct perf_evsel *evsel, struct perf_sample *sample, + struct machine *machine __maybe_unused) { + const char *comm = perf_evsel__strval(evsel, sample, "comm"); + const u32 pid = perf_evsel__intval(evsel, sample, "pid"); struct task_desc *waker, *wakee; if (verbose) { - printf("sched_wakeup event %p\n", event); + printf("sched_wakeup event %p\n", evsel); - printf(" ... pid %d woke up %s/%d\n", - wakeup_event->common_pid, - wakeup_event->comm, - wakeup_event->pid); + printf(" ... pid %d woke up %s/%d\n", sample->tid, comm, pid); } - waker = register_pid(wakeup_event->common_pid, "<unknown>"); - wakee = register_pid(wakeup_event->pid, wakeup_event->comm); + waker = register_pid(sched, sample->tid, "<unknown>"); + wakee = register_pid(sched, pid, comm); - add_sched_event_wakeup(waker, timestamp, wakee); + add_sched_event_wakeup(sched, waker, sample->time, wakee); + return 0; } -static u64 cpu_last_switched[MAX_CPUS]; - -static void -replay_switch_event(struct trace_switch_event *switch_event, - struct perf_session *session __used, - struct event *event, - int cpu, - u64 timestamp, - struct thread *thread __used) +static int replay_switch_event(struct perf_sched *sched, + struct perf_evsel *evsel, + struct perf_sample *sample, + struct machine *machine __maybe_unused) { - struct task_desc *prev, *next; - u64 timestamp0; + const char *prev_comm = perf_evsel__strval(evsel, sample, "prev_comm"), + *next_comm = perf_evsel__strval(evsel, sample, "next_comm"); + const u32 prev_pid = perf_evsel__intval(evsel, sample, "prev_pid"), + next_pid = perf_evsel__intval(evsel, sample, "next_pid"); + const u64 prev_state = perf_evsel__intval(evsel, sample, "prev_state"); + struct task_desc *prev, __maybe_unused *next; + u64 timestamp0, timestamp = sample->time; + int cpu = sample->cpu; s64 delta; if (verbose) - printf("sched_switch event %p\n", event); + printf("sched_switch event %p\n", evsel); if (cpu >= MAX_CPUS || cpu < 0) - return; + return 0; - timestamp0 = cpu_last_switched[cpu]; + timestamp0 = sched->cpu_last_switched[cpu]; if (timestamp0) delta = timestamp - timestamp0; else delta = 0; - if (delta < 0) - die("hm, delta: %Ld < 0 ?\n", delta); - - if (verbose) { - 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); + if (delta < 0) { + pr_err("hm, delta: %" PRIu64 " < 0 ?\n", delta); + return -1; } - prev = register_pid(switch_event->prev_pid, switch_event->prev_comm); - next = register_pid(switch_event->next_pid, switch_event->next_comm); + pr_debug(" ... switch from %s/%d to %s/%d [ran %" PRIu64 " nsecs]\n", + prev_comm, prev_pid, next_comm, next_pid, delta); - cpu_last_switched[cpu] = timestamp; + prev = register_pid(sched, prev_pid, prev_comm); + next = register_pid(sched, next_pid, next_comm); - add_sched_event_run(prev, timestamp, delta); - add_sched_event_sleep(prev, timestamp, switch_event->prev_state); -} + sched->cpu_last_switched[cpu] = timestamp; + add_sched_event_run(sched, prev, timestamp, delta); + add_sched_event_sleep(sched, prev, timestamp, prev_state); -static void -replay_fork_event(struct trace_fork_event *fork_event, - struct event *event, - int cpu __used, - u64 timestamp __used, - struct thread *thread __used) + return 0; +} + +static int replay_fork_event(struct perf_sched *sched, + union perf_event *event, + struct machine *machine) { + struct thread *child, *parent; + + child = machine__findnew_thread(machine, event->fork.pid, + event->fork.tid); + parent = machine__findnew_thread(machine, event->fork.ppid, + event->fork.ptid); + + if (child == NULL || parent == NULL) { + pr_debug("thread does not exist on fork event: child %p, parent %p\n", + child, parent); + return 0; + } + if (verbose) { - 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); + printf("fork event\n"); + printf("... parent: %s/%d\n", thread__comm_str(parent), parent->tid); + printf("... child: %s/%d\n", thread__comm_str(child), child->tid); } - register_pid(fork_event->parent_pid, fork_event->parent_comm); - register_pid(fork_event->child_pid, fork_event->child_comm); -} -static struct trace_sched_handler replay_ops = { - .wakeup_event = replay_wakeup_event, - .switch_event = replay_switch_event, - .fork_event = replay_fork_event, -}; + register_pid(sched, parent->tid, thread__comm_str(parent)); + register_pid(sched, child->tid, thread__comm_str(child)); + return 0; +} struct sort_dimension { const char *name; @@ -862,8 +751,6 @@ struct sort_dimension { struct list_head list; }; -static LIST_HEAD(cmp_pid); - static int thread_lat_cmp(struct list_head *list, struct work_atoms *l, struct work_atoms *r) { @@ -932,43 +819,37 @@ __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 perf_sched *sched, 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); -} - -static void -latency_fork_event(struct trace_fork_event *fork_event __used, - struct event *event __used, - int cpu __used, - u64 timestamp __used, - struct thread *thread __used) -{ - /* should insert the newcomer */ + __thread_latency_insert(&sched->atom_root, atoms, &sched->cmp_pid); + return 0; } -__used -static char sched_out_state(struct trace_switch_event *switch_event) +static char sched_out_state(u64 prev_state) { const char *str = TASK_STATE_TO_CHAR_STR; - return str[switch_event->prev_state]; + return str[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; @@ -978,10 +859,12 @@ add_sched_out_event(struct work_atoms *atoms, } list_add_tail(&atom->list, &atoms->work_list); + return 0; } static void -add_runtime_event(struct work_atoms *atoms, u64 delta, u64 timestamp __used) +add_runtime_event(struct work_atoms *atoms, u64 delta, + u64 timestamp __maybe_unused) { struct work_atom *atom; @@ -1024,106 +907,123 @@ add_sched_in_event(struct work_atoms *atoms, u64 timestamp) atoms->nb_atoms++; } -static void -latency_switch_event(struct trace_switch_event *switch_event, - struct perf_session *session, - struct event *event __used, - int cpu, - u64 timestamp, - struct thread *thread __used) +static int latency_switch_event(struct perf_sched *sched, + struct perf_evsel *evsel, + struct perf_sample *sample, + struct machine *machine) { + const u32 prev_pid = perf_evsel__intval(evsel, sample, "prev_pid"), + next_pid = perf_evsel__intval(evsel, sample, "next_pid"); + const u64 prev_state = perf_evsel__intval(evsel, sample, "prev_state"); struct work_atoms *out_events, *in_events; struct thread *sched_out, *sched_in; - u64 timestamp0; + u64 timestamp0, timestamp = sample->time; + int cpu = sample->cpu; s64 delta; BUG_ON(cpu >= MAX_CPUS || cpu < 0); - timestamp0 = cpu_last_switched[cpu]; - cpu_last_switched[cpu] = timestamp; + timestamp0 = sched->cpu_last_switched[cpu]; + sched->cpu_last_switched[cpu] = timestamp; if (timestamp0) delta = timestamp - timestamp0; else delta = 0; - if (delta < 0) - die("hm, delta: %Ld < 0 ?\n", delta); - + if (delta < 0) { + pr_err("hm, delta: %" PRIu64 " < 0 ?\n", delta); + return -1; + } - sched_out = perf_session__findnew(session, switch_event->prev_pid); - sched_in = perf_session__findnew(session, switch_event->next_pid); + sched_out = machine__findnew_thread(machine, 0, prev_pid); + sched_in = machine__findnew_thread(machine, 0, next_pid); - out_events = thread_atoms_search(&atom_root, sched_out, &cmp_pid); + out_events = thread_atoms_search(&sched->atom_root, sched_out, &sched->cmp_pid); if (!out_events) { - thread_atoms_insert(sched_out); - out_events = thread_atoms_search(&atom_root, sched_out, &cmp_pid); - if (!out_events) - die("out-event: Internal tree error"); + if (thread_atoms_insert(sched, sched_out)) + return -1; + out_events = thread_atoms_search(&sched->atom_root, sched_out, &sched->cmp_pid); + 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(prev_state), timestamp)) + return -1; - in_events = thread_atoms_search(&atom_root, sched_in, &cmp_pid); + in_events = thread_atoms_search(&sched->atom_root, sched_in, &sched->cmp_pid); if (!in_events) { - thread_atoms_insert(sched_in); - in_events = thread_atoms_search(&atom_root, sched_in, &cmp_pid); - if (!in_events) - die("in-event: Internal tree error"); + if (thread_atoms_insert(sched, sched_in)) + return -1; + in_events = thread_atoms_search(&sched->atom_root, sched_in, &sched->cmp_pid); + 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 -latency_runtime_event(struct trace_runtime_event *runtime_event, - struct perf_session *session, - struct event *event __used, - int cpu, - u64 timestamp, - struct thread *this_thread __used) +static int latency_runtime_event(struct perf_sched *sched, + struct perf_evsel *evsel, + struct perf_sample *sample, + struct machine *machine) { - struct thread *thread = perf_session__findnew(session, runtime_event->pid); - struct work_atoms *atoms = thread_atoms_search(&atom_root, thread, &cmp_pid); + const u32 pid = perf_evsel__intval(evsel, sample, "pid"); + const u64 runtime = perf_evsel__intval(evsel, sample, "runtime"); + struct thread *thread = machine__findnew_thread(machine, 0, pid); + struct work_atoms *atoms = thread_atoms_search(&sched->atom_root, thread, &sched->cmp_pid); + u64 timestamp = sample->time; + int cpu = sample->cpu; BUG_ON(cpu >= MAX_CPUS || cpu < 0); if (!atoms) { - thread_atoms_insert(thread); - 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 (thread_atoms_insert(sched, thread)) + return -1; + atoms = thread_atoms_search(&sched->atom_root, thread, &sched->cmp_pid); + if (!atoms) { + pr_err("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); + add_runtime_event(atoms, runtime, timestamp); + return 0; } -static void -latency_wakeup_event(struct trace_wakeup_event *wakeup_event, - struct perf_session *session, - struct event *__event __used, - int cpu __used, - u64 timestamp, - struct thread *thread __used) +static int latency_wakeup_event(struct perf_sched *sched, + struct perf_evsel *evsel, + struct perf_sample *sample, + struct machine *machine) { + const u32 pid = perf_evsel__intval(evsel, sample, "pid"); struct work_atoms *atoms; struct work_atom *atom; struct thread *wakee; + u64 timestamp = sample->time; - /* Note for later, it may be interesting to observe the failing cases */ - if (!wakeup_event->success) - return; - - wakee = perf_session__findnew(session, wakeup_event->pid); - atoms = thread_atoms_search(&atom_root, wakee, &cmp_pid); + wakee = machine__findnew_thread(machine, 0, pid); + atoms = thread_atoms_search(&sched->atom_root, wakee, &sched->cmp_pid); if (!atoms) { - thread_atoms_insert(wakee); - 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 (thread_atoms_insert(sched, wakee)) + return -1; + atoms = thread_atoms_search(&sched->atom_root, wakee, &sched->cmp_pid); + if (!atoms) { + pr_err("wakeup-event: Internal tree error"); + return -1; + } + if (add_sched_out_event(atoms, 'S', timestamp)) + return -1; } BUG_ON(list_empty(&atoms->work_list)); @@ -1131,31 +1031,37 @@ latency_wakeup_event(struct trace_wakeup_event *wakeup_event, atom = list_entry(atoms->work_list.prev, struct work_atom, list); /* + * As we do not guarantee the wakeup event happens when + * task is out of run queue, also may happen when task is + * on run queue and wakeup only change ->state to TASK_RUNNING, + * then we should not set the ->wake_up_time when wake up a + * task which is on run queue. + * * You WILL be missing events if you've recorded only * one CPU, or are only looking at only one, so don't - * make useless noise. + * skip in this case. */ - if (profile_cpu == -1 && atom->state != THREAD_SLEEPING) - nr_state_machine_bugs++; + if (sched->profile_cpu == -1 && atom->state != THREAD_SLEEPING) + return 0; - nr_timestamps++; + sched->nr_timestamps++; if (atom->sched_out_time > timestamp) { - nr_unordered_timestamps++; - return; + sched->nr_unordered_timestamps++; + return 0; } atom->state = THREAD_WAIT_CPU; atom->wake_up_time = timestamp; + return 0; } -static void -latency_migrate_task_event(struct trace_migrate_task_event *migrate_task_event, - struct perf_session *session, - struct event *__event __used, - int cpu __used, - u64 timestamp, - struct thread *thread __used) +static int latency_migrate_task_event(struct perf_sched *sched, + struct perf_evsel *evsel, + struct perf_sample *sample, + struct machine *machine) { + const u32 pid = perf_evsel__intval(evsel, sample, "pid"); + u64 timestamp = sample->time; struct work_atoms *atoms; struct work_atom *atom; struct thread *migrant; @@ -1163,18 +1069,22 @@ 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; + if (sched->profile_cpu == -1) + return 0; - migrant = perf_session__findnew(session, migrate_task_event->pid); - atoms = thread_atoms_search(&atom_root, migrant, &cmp_pid); + migrant = machine__findnew_thread(machine, 0, pid); + atoms = thread_atoms_search(&sched->atom_root, migrant, &sched->cmp_pid); if (!atoms) { - thread_atoms_insert(migrant); - 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 (thread_atoms_insert(sched, migrant)) + return -1; + register_pid(sched, migrant->tid, thread__comm_str(migrant)); + atoms = thread_atoms_search(&sched->atom_root, migrant, &sched->cmp_pid); + if (!atoms) { + pr_err("migration-event: Internal tree error"); + return -1; + } + if (add_sched_out_event(atoms, 'R', timestamp)) + return -1; } BUG_ON(list_empty(&atoms->work_list)); @@ -1182,21 +1092,15 @@ latency_migrate_task_event(struct trace_migrate_task_event *migrate_task_event, atom = list_entry(atoms->work_list.prev, struct work_atom, list); atom->sched_in_time = atom->sched_out_time = atom->wake_up_time = timestamp; - nr_timestamps++; + sched->nr_timestamps++; if (atom->sched_out_time > timestamp) - nr_unordered_timestamps++; -} + sched->nr_unordered_timestamps++; -static struct trace_sched_handler lat_ops = { - .wakeup_event = latency_wakeup_event, - .switch_event = latency_switch_event, - .runtime_event = latency_runtime_event, - .fork_event = latency_fork_event, - .migrate_task_event = latency_migrate_task_event, -}; + return 0; +} -static void output_lat_thread(struct work_atoms *work_list) +static void output_lat_thread(struct perf_sched *sched, struct work_atoms *work_list) { int i; int ret; @@ -1207,20 +1111,20 @@ static void output_lat_thread(struct work_atoms *work_list) /* * Ignore idle threads: */ - if (!strcmp(work_list->thread->comm, "swapper")) + if (!strcmp(thread__comm_str(work_list->thread), "swapper")) return; - all_runtime += work_list->total_runtime; - all_count += work_list->nb_atoms; + sched->all_runtime += work_list->total_runtime; + sched->all_count += work_list->nb_atoms; - ret = printf(" %s:%d ", work_list->thread->comm, work_list->thread->pid); + ret = printf(" %s:%d ", thread__comm_str(work_list->thread), work_list->thread->tid); for (i = 0; i < 24 - ret; i++) printf(" "); avg = work_list->total_lat / work_list->nb_atoms; - printf("|%11.3f ms |%9llu | avg:%9.3f ms | max:%9.3f ms | max at: %9.6f s\n", + printf("|%11.3f ms |%9" PRIu64 " | avg:%9.3f ms | max:%9.3f ms | max at: %13.6f s\n", (double)work_list->total_runtime / 1e6, work_list->nb_atoms, (double)avg / 1e6, (double)work_list->max_lat / 1e6, @@ -1229,19 +1133,14 @@ static void output_lat_thread(struct work_atoms *work_list) static int pid_cmp(struct work_atoms *l, struct work_atoms *r) { - if (l->thread->pid < r->thread->pid) + if (l->thread->tid < r->thread->tid) return -1; - if (l->thread->pid > r->thread->pid) + if (l->thread->tid > r->thread->tid) return 1; return 0; } -static struct sort_dimension pid_sort_dimension = { - .name = "pid", - .cmp = pid_cmp, -}; - static int avg_cmp(struct work_atoms *l, struct work_atoms *r) { u64 avgl, avgr; @@ -1263,11 +1162,6 @@ static int avg_cmp(struct work_atoms *l, struct work_atoms *r) return 0; } -static struct sort_dimension avg_sort_dimension = { - .name = "avg", - .cmp = avg_cmp, -}; - static int max_cmp(struct work_atoms *l, struct work_atoms *r) { if (l->max_lat < r->max_lat) @@ -1278,11 +1172,6 @@ static int max_cmp(struct work_atoms *l, struct work_atoms *r) return 0; } -static struct sort_dimension max_sort_dimension = { - .name = "max", - .cmp = max_cmp, -}; - static int switch_cmp(struct work_atoms *l, struct work_atoms *r) { if (l->nb_atoms < r->nb_atoms) @@ -1293,11 +1182,6 @@ static int switch_cmp(struct work_atoms *l, struct work_atoms *r) return 0; } -static struct sort_dimension switch_sort_dimension = { - .name = "switch", - .cmp = switch_cmp, -}; - static int runtime_cmp(struct work_atoms *l, struct work_atoms *r) { if (l->total_runtime < r->total_runtime) @@ -1308,28 +1192,38 @@ static int runtime_cmp(struct work_atoms *l, struct work_atoms *r) return 0; } -static struct sort_dimension runtime_sort_dimension = { - .name = "runtime", - .cmp = runtime_cmp, -}; - -static struct sort_dimension *available_sorts[] = { - &pid_sort_dimension, - &avg_sort_dimension, - &max_sort_dimension, - &switch_sort_dimension, - &runtime_sort_dimension, -}; - -#define NB_AVAILABLE_SORTS (int)(sizeof(available_sorts) / sizeof(struct sort_dimension *)) - -static LIST_HEAD(sort_list); - static int sort_dimension__add(const char *tok, struct list_head *list) { - int i; - - for (i = 0; i < NB_AVAILABLE_SORTS; i++) { + size_t i; + static struct sort_dimension avg_sort_dimension = { + .name = "avg", + .cmp = avg_cmp, + }; + static struct sort_dimension max_sort_dimension = { + .name = "max", + .cmp = max_cmp, + }; + static struct sort_dimension pid_sort_dimension = { + .name = "pid", + .cmp = pid_cmp, + }; + static struct sort_dimension runtime_sort_dimension = { + .name = "runtime", + .cmp = runtime_cmp, + }; + static struct sort_dimension switch_sort_dimension = { + .name = "switch", + .cmp = switch_cmp, + }; + struct sort_dimension *available_sorts[] = { + &pid_sort_dimension, + &avg_sort_dimension, + &max_sort_dimension, + &switch_sort_dimension, + &runtime_sort_dimension, + }; + + for (i = 0; i < ARRAY_SIZE(available_sorts); i++) { if (!strcmp(available_sorts[i]->name, tok)) { list_add_tail(&available_sorts[i]->list, list); @@ -1340,535 +1234,412 @@ static int sort_dimension__add(const char *tok, struct list_head *list) return -1; } -static void setup_sorting(void); - -static void sort_lat(void) +static void perf_sched__sort_lat(struct perf_sched *sched) { struct rb_node *node; for (;;) { struct work_atoms *data; - node = rb_first(&atom_root); + node = rb_first(&sched->atom_root); if (!node) break; - rb_erase(node, &atom_root); + rb_erase(node, &sched->atom_root); data = rb_entry(node, struct work_atoms, node); - __thread_latency_insert(&sorted_atom_root, data, &sort_list); + __thread_latency_insert(&sched->sorted_atom_root, data, &sched->sort_list); } } -static struct trace_sched_handler *trace_handler; - -static void -process_sched_wakeup_event(void *data, struct perf_session *session, - struct event *event, - int cpu __used, - u64 timestamp __used, - struct thread *thread __used) +static int process_sched_wakeup_event(struct perf_tool *tool, + struct perf_evsel *evsel, + struct perf_sample *sample, + struct machine *machine) { - struct trace_wakeup_event wakeup_event; - - FILL_COMMON_FIELDS(wakeup_event, event, data); + struct perf_sched *sched = container_of(tool, struct perf_sched, tool); - FILL_ARRAY(wakeup_event, comm, event, data); - FILL_FIELD(wakeup_event, pid, event, data); - FILL_FIELD(wakeup_event, prio, event, data); - FILL_FIELD(wakeup_event, success, event, data); - FILL_FIELD(wakeup_event, cpu, event, data); + if (sched->tp_handler->wakeup_event) + return sched->tp_handler->wakeup_event(sched, evsel, sample, machine); - if (trace_handler->wakeup_event) - trace_handler->wakeup_event(&wakeup_event, session, event, - cpu, timestamp, thread); + return 0; } -/* - * Track the current task - that way we can know whether there's any - * weird events, such as a task being switched away that is not current. - */ -static int max_cpu; - -static u32 curr_pid[MAX_CPUS] = { [0 ... MAX_CPUS-1] = -1 }; - -static struct thread *curr_thread[MAX_CPUS]; - -static char next_shortname1 = 'A'; -static char next_shortname2 = '0'; - -static void -map_switch_event(struct trace_switch_event *switch_event, - struct perf_session *session, - struct event *event __used, - int this_cpu, - u64 timestamp, - struct thread *thread __used) +static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel, + struct perf_sample *sample, struct machine *machine) { - struct thread *sched_out, *sched_in; + const u32 next_pid = perf_evsel__intval(evsel, sample, "next_pid"); + struct thread *sched_in; int new_shortname; - u64 timestamp0; + u64 timestamp0, timestamp = sample->time; s64 delta; - int cpu; + int cpu, this_cpu = sample->cpu; BUG_ON(this_cpu >= MAX_CPUS || this_cpu < 0); - if (this_cpu > max_cpu) - max_cpu = this_cpu; + if (this_cpu > sched->max_cpu) + sched->max_cpu = this_cpu; - timestamp0 = cpu_last_switched[this_cpu]; - cpu_last_switched[this_cpu] = timestamp; + timestamp0 = sched->cpu_last_switched[this_cpu]; + sched->cpu_last_switched[this_cpu] = timestamp; if (timestamp0) delta = timestamp - timestamp0; else delta = 0; - if (delta < 0) - die("hm, delta: %Ld < 0 ?\n", delta); - + if (delta < 0) { + pr_err("hm, delta: %" PRIu64 " < 0 ?\n", delta); + return -1; + } - sched_out = perf_session__findnew(session, switch_event->prev_pid); - sched_in = perf_session__findnew(session, switch_event->next_pid); + sched_in = machine__findnew_thread(machine, 0, next_pid); - curr_thread[this_cpu] = sched_in; + sched->curr_thread[this_cpu] = sched_in; printf(" "); new_shortname = 0; if (!sched_in->shortname[0]) { - sched_in->shortname[0] = next_shortname1; - sched_in->shortname[1] = next_shortname2; - - if (next_shortname1 < 'Z') { - next_shortname1++; + if (!strcmp(thread__comm_str(sched_in), "swapper")) { + /* + * Don't allocate a letter-number for swapper:0 + * as a shortname. Instead, we use '.' for it. + */ + sched_in->shortname[0] = '.'; + sched_in->shortname[1] = ' '; } else { - next_shortname1='A'; - if (next_shortname2 < '9') { - next_shortname2++; + sched_in->shortname[0] = sched->next_shortname1; + sched_in->shortname[1] = sched->next_shortname2; + + if (sched->next_shortname1 < 'Z') { + sched->next_shortname1++; } else { - next_shortname2='0'; + sched->next_shortname1 = 'A'; + if (sched->next_shortname2 < '9') + sched->next_shortname2++; + else + sched->next_shortname2 = '0'; } } new_shortname = 1; } - for (cpu = 0; cpu <= max_cpu; cpu++) { + for (cpu = 0; cpu <= sched->max_cpu; cpu++) { if (cpu != this_cpu) printf(" "); else printf("*"); - if (curr_thread[cpu]) { - if (curr_thread[cpu]->pid) - printf("%2s ", curr_thread[cpu]->shortname); - else - printf(". "); - } else + if (sched->curr_thread[cpu]) + printf("%2s ", sched->curr_thread[cpu]->shortname); + else printf(" "); } printf(" %12.6f secs ", (double)timestamp/1e9); if (new_shortname) { printf("%s => %s:%d\n", - sched_in->shortname, sched_in->comm, sched_in->pid); + sched_in->shortname, thread__comm_str(sched_in), sched_in->tid); } else { printf("\n"); } -} + return 0; +} -static void -process_sched_switch_event(void *data, struct perf_session *session, - struct event *event, - int this_cpu, - u64 timestamp __used, - struct thread *thread __used) +static int process_sched_switch_event(struct perf_tool *tool, + struct perf_evsel *evsel, + struct perf_sample *sample, + struct machine *machine) { - struct trace_switch_event switch_event; - - FILL_COMMON_FIELDS(switch_event, event, data); - - FILL_ARRAY(switch_event, prev_comm, event, data); - FILL_FIELD(switch_event, prev_pid, event, data); - FILL_FIELD(switch_event, prev_prio, event, data); - FILL_FIELD(switch_event, prev_state, event, data); - FILL_ARRAY(switch_event, next_comm, event, data); - FILL_FIELD(switch_event, next_pid, event, data); - FILL_FIELD(switch_event, next_prio, event, data); + struct perf_sched *sched = container_of(tool, struct perf_sched, tool); + int this_cpu = sample->cpu, err = 0; + u32 prev_pid = perf_evsel__intval(evsel, sample, "prev_pid"), + next_pid = perf_evsel__intval(evsel, sample, "next_pid"); - if (curr_pid[this_cpu] != (u32)-1) { + if (sched->curr_pid[this_cpu] != (u32)-1) { /* * Are we trying to switch away a PID that is * not current? */ - if (curr_pid[this_cpu] != switch_event.prev_pid) - nr_context_switch_bugs++; + if (sched->curr_pid[this_cpu] != prev_pid) + sched->nr_context_switch_bugs++; } - if (trace_handler->switch_event) - trace_handler->switch_event(&switch_event, session, event, - this_cpu, timestamp, thread); - curr_pid[this_cpu] = switch_event.next_pid; + if (sched->tp_handler->switch_event) + err = sched->tp_handler->switch_event(sched, evsel, sample, machine); + + sched->curr_pid[this_cpu] = next_pid; + return err; } -static void -process_sched_runtime_event(void *data, struct perf_session *session, - struct event *event, - int cpu __used, - u64 timestamp __used, - struct thread *thread __used) +static int process_sched_runtime_event(struct perf_tool *tool, + struct perf_evsel *evsel, + struct perf_sample *sample, + struct machine *machine) { - struct trace_runtime_event runtime_event; + struct perf_sched *sched = container_of(tool, struct perf_sched, tool); - FILL_ARRAY(runtime_event, comm, event, data); - FILL_FIELD(runtime_event, pid, event, data); - FILL_FIELD(runtime_event, runtime, event, data); - FILL_FIELD(runtime_event, vruntime, event, data); + if (sched->tp_handler->runtime_event) + return sched->tp_handler->runtime_event(sched, evsel, sample, machine); - if (trace_handler->runtime_event) - trace_handler->runtime_event(&runtime_event, session, event, cpu, timestamp, thread); + return 0; } -static void -process_sched_fork_event(void *data, - struct event *event, - int cpu __used, - u64 timestamp __used, - struct thread *thread __used) +static int perf_sched__process_fork_event(struct perf_tool *tool, + union perf_event *event, + struct perf_sample *sample, + struct machine *machine) { - struct trace_fork_event fork_event; + struct perf_sched *sched = container_of(tool, struct perf_sched, tool); - FILL_COMMON_FIELDS(fork_event, event, data); + /* run the fork event through the perf machineruy */ + perf_event__process_fork(tool, event, sample, machine); - FILL_ARRAY(fork_event, parent_comm, event, data); - FILL_FIELD(fork_event, parent_pid, event, data); - FILL_ARRAY(fork_event, child_comm, event, data); - FILL_FIELD(fork_event, child_pid, event, data); + /* and then run additional processing needed for this command */ + if (sched->tp_handler->fork_event) + return sched->tp_handler->fork_event(sched, event, machine); - if (trace_handler->fork_event) - trace_handler->fork_event(&fork_event, event, - cpu, timestamp, thread); -} - -static void -process_sched_exit_event(struct event *event, - int cpu __used, - u64 timestamp __used, - struct thread *thread __used) -{ - if (verbose) - printf("sched_exit event %p\n", event); + return 0; } -static void -process_sched_migrate_task_event(void *data, struct perf_session *session, - struct event *event, - int cpu __used, - u64 timestamp __used, - struct thread *thread __used) +static int process_sched_migrate_task_event(struct perf_tool *tool, + struct perf_evsel *evsel, + struct perf_sample *sample, + struct machine *machine) { - struct trace_migrate_task_event migrate_task_event; - - FILL_COMMON_FIELDS(migrate_task_event, event, data); + struct perf_sched *sched = container_of(tool, struct perf_sched, tool); - FILL_ARRAY(migrate_task_event, comm, event, data); - FILL_FIELD(migrate_task_event, pid, event, data); - FILL_FIELD(migrate_task_event, prio, event, data); - FILL_FIELD(migrate_task_event, cpu, event, data); + if (sched->tp_handler->migrate_task_event) + return sched->tp_handler->migrate_task_event(sched, evsel, sample, machine); - if (trace_handler->migrate_task_event) - trace_handler->migrate_task_event(&migrate_task_event, session, - event, cpu, timestamp, thread); + return 0; } -static void -process_raw_event(event_t *raw_event __used, struct perf_session *session, - void *data, int cpu, u64 timestamp, struct thread *thread) -{ - struct event *event; - int type; - - - type = trace_parse_common_type(data); - event = trace_find_event(type); - - if (!strcmp(event->name, "sched_switch")) - process_sched_switch_event(data, session, event, cpu, timestamp, thread); - if (!strcmp(event->name, "sched_stat_runtime")) - process_sched_runtime_event(data, session, event, cpu, timestamp, thread); - if (!strcmp(event->name, "sched_wakeup")) - process_sched_wakeup_event(data, session, event, cpu, timestamp, thread); - if (!strcmp(event->name, "sched_wakeup_new")) - process_sched_wakeup_event(data, session, event, cpu, timestamp, thread); - if (!strcmp(event->name, "sched_process_fork")) - process_sched_fork_event(data, event, cpu, timestamp, thread); - if (!strcmp(event->name, "sched_process_exit")) - process_sched_exit_event(event, cpu, timestamp, thread); - if (!strcmp(event->name, "sched_migrate_task")) - process_sched_migrate_task_event(data, session, event, cpu, timestamp, thread); -} +typedef int (*tracepoint_handler)(struct perf_tool *tool, + struct perf_evsel *evsel, + struct perf_sample *sample, + struct machine *machine); -static int process_sample_event(event_t *event, struct perf_session *session) +static int perf_sched__process_tracepoint_sample(struct perf_tool *tool __maybe_unused, + union perf_event *event __maybe_unused, + struct perf_sample *sample, + struct perf_evsel *evsel, + struct machine *machine) { - struct sample_data data; - struct thread *thread; + int err = 0; - if (!(session->sample_type & PERF_SAMPLE_RAW)) - return 0; + evsel->hists.stats.total_period += sample->period; + hists__inc_nr_samples(&evsel->hists, true); - memset(&data, 0, sizeof(data)); - data.time = -1; - data.cpu = -1; - data.period = -1; - - event__parse_sample(event, session->sample_type, &data); + if (evsel->handler != NULL) { + tracepoint_handler f = evsel->handler; + err = f(tool, evsel, sample, machine); + } - dump_printf("(IP, %d): %d/%d: %#Lx period: %Ld\n", event->header.misc, - data.pid, data.tid, data.ip, data.period); + return err; +} - thread = perf_session__findnew(session, data.pid); - if (thread == NULL) { - pr_debug("problem processing %d event, skipping it.\n", - event->header.type); +static int perf_sched__read_events(struct perf_sched *sched, + struct perf_session **psession) +{ + const struct perf_evsel_str_handler handlers[] = { + { "sched:sched_switch", process_sched_switch_event, }, + { "sched:sched_stat_runtime", process_sched_runtime_event, }, + { "sched:sched_wakeup", process_sched_wakeup_event, }, + { "sched:sched_wakeup_new", process_sched_wakeup_event, }, + { "sched:sched_migrate_task", process_sched_migrate_task_event, }, + }; + struct perf_session *session; + struct perf_data_file file = { + .path = input_name, + .mode = PERF_DATA_MODE_READ, + }; + + session = perf_session__new(&file, false, &sched->tool); + if (session == NULL) { + pr_debug("No Memory for session\n"); return -1; } - dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid); + if (perf_session__set_tracepoints_handlers(session, handlers)) + goto out_delete; - if (profile_cpu != -1 && profile_cpu != (int)data.cpu) - return 0; - - process_raw_event(event, session, data.raw_data, data.cpu, data.time, thread); - - return 0; -} + if (perf_session__has_traces(session, "record -R")) { + int err = perf_session__process_events(session, &sched->tool); + if (err) { + pr_err("Failed to process events, error %d", err); + goto out_delete; + } -static struct perf_event_ops event_ops = { - .sample = process_sample_event, - .comm = event__process_comm, - .lost = event__process_lost, - .fork = event__process_task, - .ordered_samples = true, -}; + sched->nr_events = session->stats.nr_events[0]; + sched->nr_lost_events = session->stats.total_lost; + sched->nr_lost_chunks = session->stats.nr_events[PERF_RECORD_LOST]; + } -static int read_events(void) -{ - int err = -EINVAL; - struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0, false); - if (session == NULL) - return -ENOMEM; + if (psession) + *psession = session; + else + perf_session__delete(session); - if (perf_session__has_traces(session, "record -R")) { - err = perf_session__process_events(session, &event_ops); - nr_events = session->hists.stats.nr_events[0]; - nr_lost_events = session->hists.stats.total_lost; - nr_lost_chunks = session->hists.stats.nr_events[PERF_RECORD_LOST]; - } + return 0; +out_delete: perf_session__delete(session); - return err; + return -1; } -static void print_bad_events(void) +static void print_bad_events(struct perf_sched *sched) { - if (nr_unordered_timestamps && nr_timestamps) { + if (sched->nr_unordered_timestamps && sched->nr_timestamps) { printf(" INFO: %.3f%% unordered timestamps (%ld out of %ld)\n", - (double)nr_unordered_timestamps/(double)nr_timestamps*100.0, - nr_unordered_timestamps, nr_timestamps); + (double)sched->nr_unordered_timestamps/(double)sched->nr_timestamps*100.0, + sched->nr_unordered_timestamps, sched->nr_timestamps); } - if (nr_lost_events && nr_events) { + if (sched->nr_lost_events && sched->nr_events) { printf(" INFO: %.3f%% lost events (%ld out of %ld, in %ld chunks)\n", - (double)nr_lost_events/(double)nr_events*100.0, - nr_lost_events, nr_events, nr_lost_chunks); - } - if (nr_state_machine_bugs && nr_timestamps) { - printf(" INFO: %.3f%% state machine bugs (%ld out of %ld)", - (double)nr_state_machine_bugs/(double)nr_timestamps*100.0, - nr_state_machine_bugs, nr_timestamps); - if (nr_lost_events) - printf(" (due to lost events?)"); - printf("\n"); + (double)sched->nr_lost_events/(double)sched->nr_events * 100.0, + sched->nr_lost_events, sched->nr_events, sched->nr_lost_chunks); } - if (nr_context_switch_bugs && nr_timestamps) { + if (sched->nr_context_switch_bugs && sched->nr_timestamps) { printf(" INFO: %.3f%% context switch bugs (%ld out of %ld)", - (double)nr_context_switch_bugs/(double)nr_timestamps*100.0, - nr_context_switch_bugs, nr_timestamps); - if (nr_lost_events) + (double)sched->nr_context_switch_bugs/(double)sched->nr_timestamps*100.0, + sched->nr_context_switch_bugs, sched->nr_timestamps); + if (sched->nr_lost_events) printf(" (due to lost events?)"); printf("\n"); } } -static void __cmd_lat(void) +static int perf_sched__lat(struct perf_sched *sched) { struct rb_node *next; + struct perf_session *session; setup_pager(); - read_events(); - sort_lat(); - printf("\n ---------------------------------------------------------------------------------------------------------------\n"); - printf(" Task | Runtime ms | Switches | Average delay ms | Maximum delay ms | Maximum delay at |\n"); - printf(" ---------------------------------------------------------------------------------------------------------------\n"); + /* save session -- references to threads are held in work_list */ + if (perf_sched__read_events(sched, &session)) + return -1; + + perf_sched__sort_lat(sched); + + printf("\n -----------------------------------------------------------------------------------------------------------------\n"); + printf(" Task | Runtime ms | Switches | Average delay ms | Maximum delay ms | Maximum delay at |\n"); + printf(" -----------------------------------------------------------------------------------------------------------------\n"); - next = rb_first(&sorted_atom_root); + next = rb_first(&sched->sorted_atom_root); while (next) { struct work_atoms *work_list; work_list = rb_entry(next, struct work_atoms, node); - output_lat_thread(work_list); + output_lat_thread(sched, work_list); next = rb_next(next); } - printf(" -----------------------------------------------------------------------------------------\n"); - printf(" TOTAL: |%11.3f ms |%9Ld |\n", - (double)all_runtime/1e6, all_count); + printf(" -----------------------------------------------------------------------------------------------------------------\n"); + printf(" TOTAL: |%11.3f ms |%9" PRIu64 " |\n", + (double)sched->all_runtime / 1e6, sched->all_count); printf(" ---------------------------------------------------\n"); - print_bad_events(); + print_bad_events(sched); printf("\n"); + perf_session__delete(session); + return 0; } -static struct trace_sched_handler map_ops = { - .wakeup_event = NULL, - .switch_event = map_switch_event, - .runtime_event = NULL, - .fork_event = NULL, -}; - -static void __cmd_map(void) +static int perf_sched__map(struct perf_sched *sched) { - max_cpu = sysconf(_SC_NPROCESSORS_CONF); + sched->max_cpu = sysconf(_SC_NPROCESSORS_CONF); setup_pager(); - read_events(); - print_bad_events(); + if (perf_sched__read_events(sched, NULL)) + return -1; + print_bad_events(sched); + return 0; } -static void __cmd_replay(void) +static int perf_sched__replay(struct perf_sched *sched) { unsigned long i; - calibrate_run_measurement_overhead(); - calibrate_sleep_measurement_overhead(); + calibrate_run_measurement_overhead(sched); + calibrate_sleep_measurement_overhead(sched); - test_calibrations(); + test_calibrations(sched); - read_events(); + if (perf_sched__read_events(sched, NULL)) + return -1; - printf("nr_run_events: %ld\n", nr_run_events); - printf("nr_sleep_events: %ld\n", nr_sleep_events); - printf("nr_wakeup_events: %ld\n", nr_wakeup_events); + printf("nr_run_events: %ld\n", sched->nr_run_events); + printf("nr_sleep_events: %ld\n", sched->nr_sleep_events); + printf("nr_wakeup_events: %ld\n", sched->nr_wakeup_events); - if (targetless_wakeups) - printf("target-less wakeups: %ld\n", targetless_wakeups); - if (multitarget_wakeups) - printf("multi-target wakeups: %ld\n", multitarget_wakeups); - if (nr_run_events_optimized) + if (sched->targetless_wakeups) + printf("target-less wakeups: %ld\n", sched->targetless_wakeups); + if (sched->multitarget_wakeups) + printf("multi-target wakeups: %ld\n", sched->multitarget_wakeups); + if (sched->nr_run_events_optimized) printf("run atoms optimized: %ld\n", - nr_run_events_optimized); + sched->nr_run_events_optimized); - print_task_traces(); - add_cross_task_wakeups(); + print_task_traces(sched); + add_cross_task_wakeups(sched); - create_tasks(); + create_tasks(sched); printf("------------------------------------------------------------\n"); - for (i = 0; i < replay_repeat; i++) - run_one_test(); -} - - -static const char * const sched_usage[] = { - "perf sched [<options>] {record|latency|map|replay|trace}", - NULL -}; - -static const struct option sched_options[] = { - OPT_STRING('i', "input", &input_name, "file", - "input file name"), - OPT_INCR('v', "verbose", &verbose, - "be more verbose (show symbol address, etc)"), - OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, - "dump raw trace in ASCII"), - OPT_END() -}; - -static const char * const latency_usage[] = { - "perf sched latency [<options>]", - NULL -}; - -static const struct option latency_options[] = { - OPT_STRING('s', "sort", &sort_order, "key[,key2...]", - "sort by key(s): runtime, switch, avg, max"), - OPT_INCR('v', "verbose", &verbose, - "be more verbose (show symbol address, etc)"), - OPT_INTEGER('C', "CPU", &profile_cpu, - "CPU to profile on"), - OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, - "dump raw trace in ASCII"), - OPT_END() -}; + for (i = 0; i < sched->replay_repeat; i++) + run_one_test(sched); -static const char * const replay_usage[] = { - "perf sched replay [<options>]", - NULL -}; - -static const struct option replay_options[] = { - OPT_UINTEGER('r', "repeat", &replay_repeat, - "repeat the workload replay N times (-1: infinite)"), - OPT_INCR('v', "verbose", &verbose, - "be more verbose (show symbol address, etc)"), - OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, - "dump raw trace in ASCII"), - OPT_END() -}; + return 0; +} -static void setup_sorting(void) +static void setup_sorting(struct perf_sched *sched, const struct option *options, + const char * const usage_msg[]) { - char *tmp, *tok, *str = strdup(sort_order); + char *tmp, *tok, *str = strdup(sched->sort_order); for (tok = strtok_r(str, ", ", &tmp); tok; tok = strtok_r(NULL, ", ", &tmp)) { - if (sort_dimension__add(tok, &sort_list) < 0) { + if (sort_dimension__add(tok, &sched->sort_list) < 0) { error("Unknown --sort key: `%s'", tok); - usage_with_options(latency_usage, latency_options); + usage_with_options(usage_msg, options); } } free(str); - sort_dimension__add("pid", &cmp_pid); + sort_dimension__add("pid", &sched->cmp_pid); } -static const char *record_args[] = { - "record", - "-a", - "-R", - "-f", - "-m", "1024", - "-c", "1", - "-e", "sched:sched_switch:r", - "-e", "sched:sched_stat_wait:r", - "-e", "sched:sched_stat_sleep:r", - "-e", "sched:sched_stat_iowait:r", - "-e", "sched:sched_stat_runtime:r", - "-e", "sched:sched_process_exit:r", - "-e", "sched:sched_process_fork:r", - "-e", "sched:sched_wakeup:r", - "-e", "sched:sched_migrate_task:r", -}; - static int __cmd_record(int argc, const char **argv) { unsigned int rec_argc, i, j; const char **rec_argv; + const char * const record_args[] = { + "record", + "-a", + "-R", + "-m", "1024", + "-c", "1", + "-e", "sched:sched_switch", + "-e", "sched:sched_stat_wait", + "-e", "sched:sched_stat_sleep", + "-e", "sched:sched_stat_iowait", + "-e", "sched:sched_stat_runtime", + "-e", "sched:sched_process_fork", + "-e", "sched:sched_wakeup", + "-e", "sched:sched_wakeup_new", + "-e", "sched:sched_migrate_task", + }; rec_argc = ARRAY_SIZE(record_args) + argc - 1; rec_argv = calloc(rec_argc + 1, sizeof(char *)); + if (rec_argv == NULL) + return -ENOMEM; + for (i = 0; i < ARRAY_SIZE(record_args); i++) rec_argv[i] = strdup(record_args[i]); @@ -1880,43 +1651,124 @@ static int __cmd_record(int argc, const char **argv) return cmd_record(i, rec_argv, NULL); } -int cmd_sched(int argc, const char **argv, const char *prefix __used) +int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused) { - argc = parse_options(argc, argv, sched_options, sched_usage, - PARSE_OPT_STOP_AT_NON_OPTION); + const char default_sort_order[] = "avg, max, switch, runtime"; + struct perf_sched sched = { + .tool = { + .sample = perf_sched__process_tracepoint_sample, + .comm = perf_event__process_comm, + .lost = perf_event__process_lost, + .fork = perf_sched__process_fork_event, + .ordered_samples = true, + }, + .cmp_pid = LIST_HEAD_INIT(sched.cmp_pid), + .sort_list = LIST_HEAD_INIT(sched.sort_list), + .start_work_mutex = PTHREAD_MUTEX_INITIALIZER, + .work_done_wait_mutex = PTHREAD_MUTEX_INITIALIZER, + .sort_order = default_sort_order, + .replay_repeat = 10, + .profile_cpu = -1, + .next_shortname1 = 'A', + .next_shortname2 = '0', + }; + const struct option latency_options[] = { + OPT_STRING('s', "sort", &sched.sort_order, "key[,key2...]", + "sort by key(s): runtime, switch, avg, max"), + OPT_INCR('v', "verbose", &verbose, + "be more verbose (show symbol address, etc)"), + OPT_INTEGER('C', "CPU", &sched.profile_cpu, + "CPU to profile on"), + OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, + "dump raw trace in ASCII"), + OPT_END() + }; + const struct option replay_options[] = { + OPT_UINTEGER('r', "repeat", &sched.replay_repeat, + "repeat the workload replay N times (-1: infinite)"), + OPT_INCR('v', "verbose", &verbose, + "be more verbose (show symbol address, etc)"), + OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, + "dump raw trace in ASCII"), + OPT_END() + }; + const struct option sched_options[] = { + OPT_STRING('i', "input", &input_name, "file", + "input file name"), + OPT_INCR('v', "verbose", &verbose, + "be more verbose (show symbol address, etc)"), + OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, + "dump raw trace in ASCII"), + OPT_END() + }; + const char * const latency_usage[] = { + "perf sched latency [<options>]", + NULL + }; + const char * const replay_usage[] = { + "perf sched replay [<options>]", + NULL + }; + const char *const sched_subcommands[] = { "record", "latency", "map", + "replay", "script", NULL }; + const char *sched_usage[] = { + NULL, + NULL + }; + struct trace_sched_handler lat_ops = { + .wakeup_event = latency_wakeup_event, + .switch_event = latency_switch_event, + .runtime_event = latency_runtime_event, + .migrate_task_event = latency_migrate_task_event, + }; + struct trace_sched_handler map_ops = { + .switch_event = map_switch_event, + }; + struct trace_sched_handler replay_ops = { + .wakeup_event = replay_wakeup_event, + .switch_event = replay_switch_event, + .fork_event = replay_fork_event, + }; + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(sched.curr_pid); i++) + sched.curr_pid[i] = -1; + + argc = parse_options_subcommand(argc, argv, sched_options, sched_subcommands, + sched_usage, PARSE_OPT_STOP_AT_NON_OPTION); if (!argc) usage_with_options(sched_usage, sched_options); /* - * Aliased to 'perf trace' for now: + * Aliased to 'perf script' for now: */ - if (!strcmp(argv[0], "trace")) - return cmd_trace(argc, argv, prefix); + if (!strcmp(argv[0], "script")) + return cmd_script(argc, argv, prefix); symbol__init(); if (!strncmp(argv[0], "rec", 3)) { return __cmd_record(argc, argv); } else if (!strncmp(argv[0], "lat", 3)) { - trace_handler = &lat_ops; + sched.tp_handler = &lat_ops; if (argc > 1) { argc = parse_options(argc, argv, latency_options, latency_usage, 0); if (argc) usage_with_options(latency_usage, latency_options); } - setup_sorting(); - __cmd_lat(); + setup_sorting(&sched, latency_options, latency_usage); + return perf_sched__lat(&sched); } else if (!strcmp(argv[0], "map")) { - trace_handler = &map_ops; - setup_sorting(); - __cmd_map(); + sched.tp_handler = &map_ops; + setup_sorting(&sched, latency_options, latency_usage); + return perf_sched__map(&sched); } else if (!strncmp(argv[0], "rep", 3)) { - trace_handler = &replay_ops; + sched.tp_handler = &replay_ops; if (argc) { argc = parse_options(argc, argv, replay_options, replay_usage, 0); if (argc) usage_with_options(replay_usage, replay_options); } - __cmd_replay(); + return perf_sched__replay(&sched); } else { usage_with_options(sched_usage, sched_options); } |