when performing a write ZMS checks if the data exists in the storage to
avoid double writing the same data and save some memory cycle life time.
However this downgrades the write performance.
Enable this feature only when CONFIG_ZMS_NO_DOUBLE_WRITE is enabled.
Signed-off-by: Riadh Ghaddab <rghaddab@baylibre.com>
This resolves some addressed comments in this PR
https://github.com/zephyrproject-rtos/zephyr/pull/77930
It adds as well a section in the documentation about some
recommendations to increase ZMS performance.
Signed-off-by: Riadh Ghaddab <rghaddab@baylibre.com>
ZMS is the abreviation of Zephyr Memory Storage.
It is a storage developed to target especially the non erasable devices.
The new memory storage system inherit from the NVS storage multiple
features and introduce new ones :
* Inherited features :
- light key-value based storage
- cache for entries
- Wear Leveling of flash memory
- Resilience to power failures
* New features :
- cycle counter for non erasable devices (instead of erase emulation)
- Keys up to 32-bit
- Built-in support of CRC32 for data
- Small size data (<= 8 bytes) integrated within entries
Signed-off-by: Riadh Ghaddab <rghaddab@baylibre.com>
