The cpustat table provides per-thread CPU
        statistics gathered each second, for each thread running in the
        NDB kernel.
      
        The cpustat table contains the following
        columns:
- node_id- ID of the node where the thread is running 
- thr_no- Thread ID (specific to this node) 
- OS_user- OS user time 
- OS_system- OS system time 
- OS_idle- OS idle time 
- thread_exec- Thread execution time 
- thread_sleeping- Thread sleep time 
- thread_spinning- Thread spin time 
- thread_send- Thread send time 
- thread_buffer_full- Thread buffer full time 
- elapsed_time- Elapsed time