Performance Schema System Variables SET_VAR  Hint Applies No Type Integer Default Value -1  (signifies autoscaling; do not assign this literal value) The maximum number of stored programs for which the Performance Schema maintains statistics. If this maximum is exceeded, the Performance Schema increments the Performance_schema_program_lost  status variable. For information about how to set and use this variable, see Section 27.7, “Performance Schema Status Monitoring” . The maximum number of instrumented rwlock objects. For information about how to set and use this variable, see Section 27.7, “Performance Schema Status Monitoring” . • performance_schema_max_rwlock_instances • performance_schema_max_socket_classes • performance_schema_max_socket_instances The maximum number of socket instruments. For information about how to set and use this variable, see Section 27.7, “Performance Schema Status Monitoring” . 5112 Command-Line Format --performance-schema-max-socket- instances=# System Variable performance_schema_max_socket_instances Command-Line Format --performance-schema-max-socket- classes=# System Variable performance_schema_max_socket_classes Scope Global Dynamic No SET_VAR  Hint Applies No Type Integer Default Value 10 Minimum Value 0 Maximum Value ( ≥  8.0.12) 1024 Maximum Value (8.0.11) 256 Command-Line Format --performance-schema-max-rwlock- instances=# System Variable performance_schema_max_rwlock_instances Scope Global Dynamic No SET_VAR  Hint Applies No Type Integer Default Value -1  (signifies autoscaling; do not assign this literal value)