Performance Schema cond_instances Table

The cond_instances table lists all active condition objects (internal code mechanisms for thread signaling) currently on the server.

Description

The cond_instances table lists all conditions while the server is executing. A condition, or instrumented condition object, is an internal code mechanism used for signalling that a specific event has occurred so that any threads waiting for this condition can continue.

The maximum number of conditions stored in the performance schema is determined by the performance_schema_max_cond_instances system variable.

Column	Description
NAME	Client user name for the connection, or NULL if an internal thread.
OBJECT_INSTANCE_BEGIN	Address in memory of the instrumented condition.

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