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CONFIG_FS_LITTLEFS_CACHE_SIZE
¶
Size of block caches in bytes
Type: int
Help¶
Each cache buffers a portion of a block in RAM. The littlefs needs a read cache, a program cache, and one additional cache per file. Larger caches can improve performance by storing more data and reducing the number of disk accesses. Must be a multiple of the read and program sizes of the underlying flash device, and a factor of the block size.
Direct dependencies¶
FILE_SYSTEM_LITTLEFS
&& FILE_SYSTEM
(Includes any dependencies from ifs and menus.)
Default¶
64
Kconfig definition¶
At <Zephyr>/subsys/fs/Kconfig.littlefs:43
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:34
→ <Zephyr>/subsys/Kconfig:24
→ <Zephyr>/subsys/fs/Kconfig:61
Menu path: (Top) → Sub Systems and OS Services → File Systems → File system support → LittleFS support → LittleFS Settings
config FS_LITTLEFS_CACHE_SIZE int "Size of block caches in bytes" ifFILE_SYSTEM_LITTLEFS
default 64 depends onFILE_SYSTEM_LITTLEFS
&&FILE_SYSTEM
help Each cache buffers a portion of a block in RAM. The littlefs needs a read cache, a program cache, and one additional cache per file. Larger caches can improve performance by storing more data and reducing the number of disk accesses. Must be a multiple of the read and program sizes of the underlying flash device, and a factor of the block size.
(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)