V$PQ_SYSSTAT

This view lists system statistics for parallel queries. After you have run a query or DML operation, you can use the information derived from V$PQ_SYSSTAT to view the number of slave processes used, and other information for the system.

Column	Datatype	Description
`STATISTIC`	`VARCHAR2(30)`	Name of the statistic: `Servers Busy` - Number of currently busy servers on this instance `Servers Idle` - Number of currently idle servers on this instance `Servers Highwater` - Number of active servers on this instance that have partaken in >= 1 operation so far `Server Sessions` - Total number of operations executed in all servers on this instance `Servers Started` - Total number of servers started on this instance `Servers Shutdown` - Total number of servers shutdown on this instance `Servers Cleaned Up` - Total number of servers on this instance cleaned up due to process death `Queries Initiated` - Total number of parallel queries initiated on this instance `DDL Initiated` - Total number of parallel DDL operations that were initiated `DML Initiated` - Total number of parallel DML operations that were initiated `DFO Trees` - Total number of DFO trees executed on this instance `Local Msgs Sent` - Total number of local (intra-instance) messages sent on this instance `Distr Msgs Sent` - Total number of remote (inter-instance) messages sent on this instance `Local Msgs Recv'd` - Total number of remote (inter-instance) messages received on this instance `Distr Msgs Recv'd` - Total number of remote (inter-instance) messages received on this instance
`VALUE`	`NUMBER`	Value of the statistic