Oracle8i Reference
Release 2 (8.1.6)

Part Number A76961-01

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Dynamic Performance (V$) Views, 107 of 179


V$PQ_SYSSTAT

This view lists system statistics for parallel queries.

Column  Datatype  Description 

STATISTIC 

VARCHAR2(30) 

The following statistics (fixed rows) have been defined for this view. 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. 

 

 

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

  • 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 

The value of the statistic 


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