Sampling process 99180 for 3 seconds with 1 millisecond of run time between samples Sampling completed, processing symbols... Analysis of sampling quartz-wm (pid 99180) every 1 millisecond Call graph: 2644 Thread_2503 2644 start 2644 main 2644 CFRunLoopRun 2644 CFRunLoopRunSpecific 2644 __CFSocketPerformV0 2644 __CFSocketDoCallback 2644 x_input_run 2644 x_input_run 2644 x_input_run 2644 get_time 2634 get_time 1365 get_time 585 pthread_mutex_lock 585 pthread_mutex_lock 575 __spin_lock 575 __spin_lock 125 get_time 27 spin_unlock 27 spin_unlock 22 dyld_stub__spin_unlock 22 dyld_stub__spin_unlock 21 dyld_stub__spin_lock 21 dyld_stub__spin_lock 10 spin_lock 10 spin_lock 632 pthread_mutex_unlock 632 pthread_mutex_unlock 460 __spin_lock 460 __spin_lock 56 get_time 47 dyld_stub__spin_lock 47 dyld_stub__spin_lock 30 dyld_stub__spin_unlock 30 dyld_stub__spin_unlock 20 spin_lock 20 spin_lock 16 dyld_stub_pthread_mutex_lock 16 dyld_stub_pthread_mutex_lock 8 spin_unlock 8 spin_unlock 10 dyld_stub_pthread_mutex_unlock 10 dyld_stub_pthread_mutex_unlock 2644 Thread_2603 2644 thread_start 2644 _pthread_start 2644 select$DARWIN_EXTSN 2644 select$DARWIN_EXTSN Total number in stack (recursive counted multiple, when >=5): Sort by top of stack, same collapsed (when >= 5): select$DARWIN_EXTSN 2644 __spin_lock 1035 pthread_mutex_unlock 632 pthread_mutex_lock 585 get_time 181 dyld_stub__spin_lock 68 dyld_stub__spin_unlock 52 spin_unlock 35 spin_lock 30 dyld_stub_pthread_mutex_lock 16 dyld_stub_pthread_mutex_unlock 10 Sample analysis of process 99180 written to file /dev/stdout