const char *time_str;
struct perf_time_interval ptime;
struct perf_time_interval hist_time;
+ volatile bool thread_funcs_exit;
};
/* per thread run time data */
prctl(PR_SET_NAME, comm2);
if (fd < 0)
return NULL;
-again:
- ret = sem_post(&this_task->ready_for_work);
- BUG_ON(ret);
- mutex_lock(&sched->start_work_mutex);
- mutex_unlock(&sched->start_work_mutex);
- cpu_usage_0 = get_cpu_usage_nsec_self(fd);
+ while (!sched->thread_funcs_exit) {
+ ret = sem_post(&this_task->ready_for_work);
+ BUG_ON(ret);
+ mutex_lock(&sched->start_work_mutex);
+ mutex_unlock(&sched->start_work_mutex);
- for (i = 0; i < this_task->nr_events; i++) {
- this_task->curr_event = i;
- perf_sched__process_event(sched, this_task->atoms[i]);
- }
+ cpu_usage_0 = get_cpu_usage_nsec_self(fd);
- cpu_usage_1 = get_cpu_usage_nsec_self(fd);
- this_task->cpu_usage = cpu_usage_1 - cpu_usage_0;
- ret = sem_post(&this_task->work_done_sem);
- BUG_ON(ret);
+ for (i = 0; i < this_task->nr_events; i++) {
+ this_task->curr_event = i;
+ perf_sched__process_event(sched, this_task->atoms[i]);
+ }
- mutex_lock(&sched->work_done_wait_mutex);
- mutex_unlock(&sched->work_done_wait_mutex);
+ cpu_usage_1 = get_cpu_usage_nsec_self(fd);
+ this_task->cpu_usage = cpu_usage_1 - cpu_usage_0;
+ ret = sem_post(&this_task->work_done_sem);
+ BUG_ON(ret);
- goto again;
+ mutex_lock(&sched->work_done_wait_mutex);
+ mutex_unlock(&sched->work_done_wait_mutex);
+ }
+ return NULL;
}
static void create_tasks(struct perf_sched *sched)
+ EXCLUSIVE_LOCK_FUNCTION(sched->start_work_mutex)
+ EXCLUSIVE_LOCK_FUNCTION(sched->work_done_wait_mutex)
{
struct task_desc *task;
pthread_attr_t attr;
}
static void wait_for_tasks(struct perf_sched *sched)
+ EXCLUSIVE_LOCKS_REQUIRED(sched->work_done_wait_mutex)
+ EXCLUSIVE_LOCKS_REQUIRED(sched->start_work_mutex)
{
u64 cpu_usage_0, cpu_usage_1;
struct task_desc *task;
}
static void run_one_test(struct perf_sched *sched)
+ EXCLUSIVE_LOCKS_REQUIRED(sched->work_done_wait_mutex)
+ EXCLUSIVE_LOCKS_REQUIRED(sched->start_work_mutex)
{
u64 T0, T1, delta, avg_delta, fluct;
print_task_traces(sched);
add_cross_task_wakeups(sched);
+ sched->thread_funcs_exit = false;
create_tasks(sched);
printf("------------------------------------------------------------\n");
for (i = 0; i < sched->replay_repeat; i++)
run_one_test(sched);
+ sched->thread_funcs_exit = true;
+ mutex_unlock(&sched->start_work_mutex);
+ mutex_unlock(&sched->work_done_wait_mutex);
return 0;
}