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 |