LXRT Tips And Tricks

• "mlockall()" has to be called once at the beginning of "main()".

      int main( void )
      {
        /* Definition of variables etc. */
        ...
              
        /* Block paging */
        mlockall( MCL_CURRENT | MCL_FUTURE );
        ...
      }

• There may not be loops in hard-/soft realtime which do not free the CPU.

• In hard realtime mode no linux systemcalls should be performed.

• If you are using a periodic timer, the period must not be zero.

• For each posix thread (created by "pthread_create( stThread, NULL, pvFunction, NULL )"), making LXRT service requests which may cause a rescheduling, it is necessary to create a buddy by "rt_task_init()" or "rt_task_init_schmod()".

• If a LXRT program is not finished clean, maybe some objects (like bits) will not be removed. So at next creating of these objects a null pointer is returned. You can check the current objects in the file "/proc/lxrt".