RT064 - Monitoring object: Buffer

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 064

• Message text: Monitoring object: Buffer

What causes this issue?

This monitoring tree element reports on the performance of the SAP
system's most important buffers in each SAP application server.
The SAP system uses buffers to cache heavily-used and rarely-changed
data. Access to data in buffers is much faster than to data in the
database.
The buffers that are monitored are as follows:

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

The Program Buffer (also known as the Executable Buffer, ABAP Buffer, or
PXA Buffer) buffers the compiled executable versions of ABAP programs
The SAP Table Buffers, which are as follows:
The Single Record Buffer (TABLP or partial table buffer) buffers
individual records from SAP database tables.
The Generic Key Buffer (TABL or generic table buffer) buffers all or
part of the contents of database tables.
The GUI Buffers, which are as follows:
The Screen Buffer (also known as the Presentation or Dynpro Buffer)
buffers screens of ABAP programs (DYNPRO loads).
The CUA Buffer (also known as the Menu Buffer) buffers menu and button
definitions from ABAP screens.
The SAP Repository Buffers (also known as the nametab or dictionary
buffers), which are as follows:
The Table Definition Buffer (TTAB Buffer, Table DDNTT), table
definitions from the SAP Repository
The Field Descriptions Buffer (FTAB Buffer, Table DDNTF), field
descriptions from the SAP Repository
The Initial Records Buffer (IREC Buffer, contains the layout of data
records in tables, initialized according to data type)
The Short Nametab buffer (SNTAB Buffer, combined form of the TTAB and
FTAB buffers containing only the most important information from each
buffer)

System Response

How to fix this error?

For each SAP buffer, you will find information on the following:
Directory used: Number of 'slots' available in percent for entries in a
buffer. If there are no free slots, then data cannot be cached in a
buffer.
Space used: The percent of the storage available in a buffer that has
been allocated for cached data.
Hit ratio: The percentage of the time that a request for data can be
satisfied from the buffer.
Swap: The frequency with which entries are replaced in the buffer.
<DS:TX.SMOI_BUFFER_MANAGEMENT_INFO>Background Information</>

Error message extract from SAP system. Copyright SAP SE.