VMS Help  —  Sys Parameters, DEADLOCK_WAIT
    DEADLOCK_WAIT defines the number of seconds that a lock request
    must wait before the system initiates a deadlock search on behalf
    of that lock. Setting DEADLOCK_WAIT to zero disables deadlock
    checking. Setting DEADLOCK_WAIT to a value greater than zero
    and less than the default setting provides faster detection of
    deadlocks but requires more CPU usage.

    The DEADLOCK_WAIT value is expressed in seconds; therefore, the
    smallest value you can set is 1 second. Beginning in VSI OpenVMS
    Version 8.3, a subsecond deadlock wait time, which is set in
    the system service $SET_PROCESS_PROPERTIESW item code $PPROP$C_
    DEADLOCK_WAIT, overrides DEADLOCK_WAIT. For more information, see
    the $SET_PROCESS_PROPERTIESW system service in VSI OpenVMS System
    Services Reference Manual.

    DEADLOCK_WAIT is a DYNAMIC parameter.
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