| 39 |   |  * one '''USER''' thread is created by a pthread_create() system call.  | 
                      
                        | 40 |   |  * one '''KERNEL''' thread is created by the kernel to execute a kernel service in a cluster. | 
                      
                        | 41 |   |  * one '''RPC''' thread is activated by the kernel to execute pending RPC requests. | 
                      
                        | 42 |   |  * the  '''IDLE''' thread is executed when there is no other thread to execute on a core. | 
                      
                      
                        |   | 39 |  * one '''USR''' thread is created by a pthread_create() system call.  | 
                      
                        |   | 40 |  * one '''DEV''' thread is created by the kernel to execute all I/O operations for a given channel device.  | 
                      
                        |   | 41 |  * one '''RPC''' thread is activated by the kernel to execute pending RPC requests in the local RPC fifo. | 
                      
                        |   | 42 |  * the  '''IDL''' thread is executed when there is no other thread to execute on a core. |