SAP Buffer Summary (PI_BUFF)
- Organization of this page
Function
The SAP Buffer Summary (PI_BUFF) record stores summary information about the SAP buffers. One record is created for each SAP instance.
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Field description buffer (FTAB buffer, table DDNTF)
This buffer stores the description of repository items.
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Initial record buffer (IREC buffer)
This buffer stores the layout of data records in a table.
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Short nametab buffer (short NTAB buffer, SNTAB buffer)
This buffer combines the field description and table definition buffers and stores only the most important information in each buffer.
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Table definition buffer (TTAB buffer, table DDNTT)
This buffer stores repository table definitions.
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Program buffer (R/3 executable buffer, ABAP buffer, PXA buffer)
This buffer stores compiled programs.
Default and changeable values
|
Item |
Default value |
Changeable |
|---|---|---|
|
Collection Interval |
600 |
Y |
|
Collection Offset |
40 |
Y |
|
Log |
No |
Y |
|
LOGIF |
(Blank) |
Y |
|
Over 10 Sec Collection Time |
No |
N |
|
Realtime Report Data Collection Mode |
Reschedule |
Y |
ODBC key fields
None
Lifetime
None
Record size
-
Fixed part: 1,287 bytes
-
Variable part: 0 bytes
Fields
|
PFM - View name (PFM - Manager name) |
Description |
Smry |
Frmt |
Delta |
Sup. ver. |
Data source |
|---|---|---|---|---|---|---|
|
CUA DirectoryUsed % (CUA_DIRECTORY_USED) |
Usage of the CUA buffer directory (number of entries) |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\CUA\DirectoryUsed) |
|
CUA HitRatio % (CUA _HIT_RATIO) |
Percentage of the database queries that were not passed to the database because they were found in the CUA buffer |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\CUA\HitRatio) |
|
CUA SpaceUsed % (CUA _SPACE_USED) |
Usage of the CUA buffer storage |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\CUA\SpaceUsed) |
|
CUA Swap (CUA _SWAP) |
Number of times swapping occurred in the CUA buffer per minute because the buffer was full |
AVG |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\CUA\Swap) |
|
FieldDescription DirectoryUsed % (FIELD_DESCRIPTION_DIRECTORY_USED) |
Usage of the field description buffer directory (number of entries) |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\FieldDescription\DirectoryUsed) |
|
FieldDescription HitRatio % (FIELD_DESCRIPTION_HIT_RATIO) |
Percentage of the database queries that were not passed to the database because they were found in the field description buffer |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\FieldDescription\HitRatio) |
|
FieldDescription SpaceUsed % (FIELD_DESCRIPTION_SPACE_USED) |
Usage of the field description buffer storage |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\FieldDescription\SpaceUsed) |
|
FieldDescription Swap (FIELD_DESCRIPTION_SWAP) |
Number of times swapping occurred in the field description buffer per minute because the buffer was full |
AVG |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\FieldDescription\Swap) |
|
GenericKey DirectoryUsed % (GENERIC_KEY_DIRECTORY_USED) |
Usage of the generic key buffer directory (number of entries) |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\GenericKey\DirectoryUsed) |
|
GenericKey HitRatio % (GENERIC_KEY_HIT_RATIO) |
Percentage of the database queries that were not passed to the database because they were found in the generic key buffer |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\GenericKey\HitRatio) |
|
GenericKey SpaceUsed % (GENERIC_KEY_SPACE_USED) |
Usage of the generic key buffer storage |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\GenericKey\SpaceUsed) |
|
GenericKey Swap (GENERIC_KEY_SWAP) |
Number of times swapping occurred in the generic key buffer per minute because the buffer was full |
AVG |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\GenericKey\Swap) |
|
InitialRecords DirectoryUsed % (INITIAL_RECORDS_DIRECTORY_USED) |
Usage of the initial records buffer directory (number of entries) |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\InitialRecords\DirectoryUsed) |
|
InitialRecords HitRatio % (INITIAL_RECORDS_HIT_RATIO) |
Percentage of the database queries that were not passed to the database because they were found in the initial records buffer |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\InitialRecords\HitRatio) |
|
InitialRecords SpaceUsed % (INITIAL_RECORDS_SPACE_USED) |
Usage of the initial records buffer storage |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\InitialRecords\SpaceUsed) |
|
InitialRecords Swap (INITIAL_RECORDS_SWAP) |
Number of times swapping occurred in the initial records buffer per minute because the buffer was full |
AVG |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\InitialRecords\Swap) |
|
Instance Name (INSTANCE_NAME) |
SAP instance name. This name usually consists of a host name, SAP system ID, and system number. This setting can be changed by the rdisp/myname parameter. |
COPY |
string(21) |
No |
7.00 or later |
-- |
|
Interval (INTERVAL) |
Interval in seconds at which records were stored (current value in Record Time field - previous value in Record Time field). The initial value is 0. |
ADD |
ulong |
No |
7.00 or later |
-- |
|
Program DirectoryUsed % (PROGRAM_DIRECTORY_USED) |
Usage of the program buffer directory (number of entries) |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\Program\DirectoryUsed) |
|
Program HitRatio % (PROGRAM_HIT_RATIO) |
Percentage of the database queries that were not passed to the database because they were found in the program buffer |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\Program\HitRatio) |
|
Program SpaceUsed % (PROGRAM_SPACE_USED) |
Usage of the program buffer storage |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\Program\SpaceUsed) |
|
Program Swap (PROGRAM_SWAP) |
Number of times swapping occurred in the program buffer per minute because the buffer was full |
AVG |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\Program\Swap) |
|
Record Time (RECORD_TIME) |
Record creation time |
COPY |
time_t |
No |
7.00 or later |
-- |
|
Record Type (INPUT_RECORD_TYPE) |
Record type (BUFF) |
COPY |
char(8) |
No |
7.00 or later |
-- |
|
Screen DirectoryUsed % (SCREEN_DIRECTORY_USED) |
Usage of the screen buffer directory (number of entries) |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\Screen\DirectoryUsed) |
|
Screen HitRatio % (SCREEN_HIT_RATIO) |
Percentage of the database queries that were not passed to the database because they were found in the screen buffer |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\Screen\HitRatio) |
|
Screen SpaceUsed % (SCREEN_SPACE_USED) |
Usage of the screen buffer storage |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\Screen\SpaceUsed) |
|
Screen Swap (SCREEN_SWAP) |
Number of times swapping occurred in the screen buffer per minute because the buffer was full |
AVG |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\Screen\Swap) |
|
ShortNameTAB DirectoryUsed % (SHORT_NAME_TAB_DIRECTORY_USED) |
Usage of the short nametab buffer directory (number of entries) |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\ShortNameTAB\DirectoryUsed) |
|
ShortNameTAB HitRatio % (SHORT_NAME_TAB_HIT_RATIO) |
Percentage of the database queries that were not passed to the database because they were found in the short nametab buffer |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\ShortNameTAB\HitRatio) |
|
ShortNameTAB SpaceUsed % (SHORT_NAME_TAB_SPACE_USED) |
Usage of the short nametab buffer storage |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\ShortNameTAB\SpaceUsed) |
|
ShortNameTAB Swap (SHORT_NAME_TAB_SWAP) |
Number of times swapping occurred in the short nametab buffer per minute because the buffer was full |
AVG |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\ShortNameTAB\Swap) |
|
SingleRecord DirectoryUsed % (SINGLE_RECORD_DIRECTORY_USED) |
Usage of the single record buffer directory (number of entries) |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\SingleRecord\DirectoryUsed) |
|
SingleRecord HitRatio % (SINGLE_RECORD_HIT_RATIO) |
Percentage of the database queries that were not passed to the database because they were found in the single record buffer |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\SingleRecord\HitRatio) |
|
SingleRecord SpaceUsed % (SINGLE_RECORD_SPACE_USED) |
Usage of the single record buffer storage |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\SingleRecord\SpaceUsed) |
|
SingleRecord Swap (SINGLE_RECORD_SWAP) |
Number of times swapping occurred in the single record buffer per minute because the buffer was full |
AVG |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\SingleRecord\Swap) |
|
System ID (SYSTEM_ID) |
SAP system ID |
COPY |
string(9) |
No |
7.00 or later |
-- |
|
TableDefinition DirectoryUsed % (TABLE_DEFINITION_DIRECTORY_USED) |
Usage of the table definition buffer directory (number of entries) |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\TableDefinition\DirectoryUsed) |
|
TableDefinition HitRatio % (TABLE_DEFINITION_HIT_RATIO) |
Percentage of the database queries that were not passed to the database because they were found in the table definition buffer |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\TableDefinition\HitRatio) |
|
TableDefinition SpaceUsed % (TABLE_DEFINITION_SPACE_USED) |
Usage of the table definition buffer storage |
% |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\TableDefinition\SpaceUsed) |
|
TableDefinition Swap (TABLE_DEFINITION_SWAP) |
Number of times swapping occurred in the table definition buffer per minute because the buffer was full |
AVG |
float |
No |
7.00 or later |
RZ20 (SAP-system-ID\SAP-instance-name\TableDefinition\Swap) |
- Legend:
-
Smry: Summary
Frmt: Format
Sup. ver.: Supported version