Limits
The number of statement executions that will be monitored at a given time is limited to 20 times the number of cpus, but can be adjusted with the hidden
init parameter _sqlmon_max_plan.
Statements whose
execution plans exceed 300 lines are not monitored. This threshold can be altered with the parameter
_sqlmon_max_planlines.
The minimal execution time of 5 seconds that an SQL statement must be running before monitoring kicks can be adjusted with _sqlmon_threshold.