onstat -g wmx command: Print all mutexes with waiters

Use the onstat -g wmx command to display all of the mutexes with waiters.


Syntax:

>>-onstat-- -g--wmx--------------------------------------------><

Example output

Figure 1. onstat -g wmx command output

Mutexes with waiters:
mid      addr             name               holder   lkcnt  waiter   waittime
134825   7000002043a9148  free_lock          11009    0      200      22921   
                                                             11010    22918

Output description

mid: Internal mutex identifier
addr: Address of locked mutex
name: Name of the mutex
holder: Thread ID of the thread that is holding the mutex; 0 = The read/write mutex is held in shared mode
lkcnt: For a read/write mutex, the current number of threads that are locking the mutex in shared mode. For a relockable mutex, the number of times the mutex was locked or relocked by the thread that is holding the mutex.
waiter: List of IDs of the threads that are waiting for this mutex
waittime: Amount of time in seconds that the thread is waiting