Indicates the number of data items that can be stored for each application.
## **Details**
## **Macro Definition **
## FEATURE\_KV\_CACHE
```
#define FEATURE_KV_CACHE
```
**Description:**
Specifies whether the KV store supports cache.
If this variable is defined, the KV store supports cache. Vendors determine whether to enable this feature. It is enabled by default.
## MAX\_CACHE\_SIZE
```
#define MAX_CACHE_SIZE 10
```
**Description:**
Indicates the number of data items that can be stored in the KV store cache.
Default value: 10
## MAX\_KV\_SUM
```
#define MAX_KV_SUM 50
```
**Description:**
Indicates the number of data items that can be stored for each application.
Default value: 50