Block Contention Interval (PI_PIBC)
- Organization of this page
Function
The Block Contention Interval (PI_PIBC) record stores performance data, taken at specific intervals, about each wait class. To collect this record, you must specify TRUE in the TIMED_STATISTICS parameter in the init.ora Oracle initialization parameter file.
PFM - Agent for Oracle creates one record for each wait class. This is a multi-instance record.
Default and changeable values
|
Item |
Default Value |
Changeable |
|---|---|---|
|
Collection Interval |
600 |
Y |
|
Collection Offset |
5 |
Y |
|
Log |
No |
Y |
|
LOGIF |
(Blank) |
Y |
|
Over 10 Sec Collection Time |
No |
N |
ODBC Key Fields
PI_PIBC_CLASS
Lifetime
From the creation to the deletion of an Oracle instance
Record Size
-
Fixed part: 678 bytes
-
Variable part: 60 bytes
Fields
|
PFM - View name (PFM - Manager name) |
Description |
Summary |
Format |
Delta |
Supported Version |
Data Source |
|---|---|---|---|---|---|---|
|
Class (CLASS) |
Block class#1 |
COPY |
string(19) |
No |
All |
V$WAITSTAT.CLASS |
|
Record Time (RECORD_TIME) |
Collection termination time for the performance data stored in the record#1 |
COPY |
time_t |
No |
All |
Agent Collector |
|
Record Type (INPUT_RECORD_TYPE) |
Record name (always PIBC)#1 |
COPY |
string(4) |
No |
All |
Agent Collector |
|
Start Time (START_TIME) |
Collection start time for the performance data stored in the record#1 |
COPY |
time_t |
No |
All |
Agent Collector |
|
Wait Count (WAIT_COUNT) |
Number of OPERATION waits for the block's class.#2 |
AVG |
double |
Yes |
All |
V$WAITSTAT.COUNT |
|
Wait Time (WAIT_TIME) |
Total OPERATION wait time for the block's class#2 |
AVG |
double |
Yes |
All |
V$WAITSTAT.TIME |