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Oracle® Database Reference
11g Release 2 (11.2)

E40402-11
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DBA_HIST_MUTEX_SLEEP

DBA_HIST_MUTEX_SLEEP displays mutex sleep summary historical statistics information.

Column Datatype NULL Description
SNAP_ID NUMBER NOT NULL Unique snapshot ID
DBID NUMBER NOT NULL Database identifier for the snapshot
INSTANCE_NUMBER NUMBER NOT NULL Instance number for the snapshot
MUTEX_TYPE VARCHAR2(32) NOT NULL Mutex type
LOCATION VARCHAR2(40) NOT NULL The code location where the waiter slept for the mutex
SLEEPS NUMBER   Number of sleeps for this MUTEX_TYPE and LOCATION
WAIT_TIME NUMBER   Wait time in microseconds