Analysis of sampling g++-4.2 (pid 65600) every 1 millisecond
Call graph:
    2893 Thread_3308366   DispatchQueue_1: com.apple.main-thread  (serial)
      2893 0x100000d44
        2893 0x100005d11
          2893 0x1000016c4
            2893 0x10000691f
              2893 0x10000768e
                2893 0x100006b54
                  2893 0x10000789d
                    2893 __wait4

Total number in stack (recursive counted multiple, when >=5):

Sort by top of stack, same collapsed (when >= 5):
        __wait4        2893