Hierarchy
SAP_BASIS (Software Component) SAP Basis Component⤷
BC-SEC-RAL (Application Component) Read Access Logging⤷
SREAD_ACCESS_LOG_OBSOLETE (Package) Read Access Logging: Obsolete Objects
Basic Data
| Data Element | SRAL_SHM_PROPORTION |
| Short Description | Proportion of SHM usage |
Data Type
| Category of Dictionary Type | D | Domain |
| Type of Object Referenced | No Information | |
| Domain / Name of Reference Type | SRAL_SHM_PROPORTION | |
| Data Type | INT4 | 4-byte integer, integer number with sign |
| Length | 10 | |
| Decimal Places | 0 | |
| Output Length | 3 | |
| Value Table |
Further Characteristics
| Search Help: Name | ||
| Search Help: Parameters | ||
| Parameter ID | ||
| Default Component name | ||
| Change document | ||
| No Input History | ||
| Basic direction is set to LTR | ||
| No BIDI Filtering |
Field Label
| Length | Field Label | |
| Short | 10 | Proportion |
| Medium | 15 | Proportion SHM |
| Long | 20 | Proportion SHM usage |
| Heading | 23 | Proportion of SHM usage |
Documentation
Definition
The parameter determines the maximum size (in percent of the Shared Memory which is used for the RAL shared memory areas
Use
If this value is exceeded, usage of the Shared Memory is stopped. Direct database access is used instead. The data is written to the database directly by the work process representing the communication channel. This makes data storage more secure, but decreases the performance of the single transactional logical unit of work.
Dependencies
If the RAL daemon has taken the data from the Shared Memory areas and persisted the data in the database, the area size decreases, and the proportion of memory usage becomes lower. If the threshold value falls below the maximum defined, the shared memory is used again by the work processes.
Example
The standard value is 20, representing the size which is given by 20% of the global size of the Shared Memory. Depending on other basic applications or customer memory usage, the proportional size can be increased to 50% or more. Only a check using the transaction SHMM in the productive system may give an optimal hint, how much space may be used RAL.
History
| Last changed by/on | SAP | 20130604 |
| SAP Release Created in | 740 |
