:orphan:

.. title:: CONFIG_FS_LITTLEFS_CACHE_SIZE

.. kconfig:: CONFIG_FS_LITTLEFS_CACHE_SIZE

CONFIG_FS_LITTLEFS_CACHE_SIZE
#############################

*Size of block caches in bytes*

Type: ``int``

Help
====

.. code-block:: none

    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
===================

\ :kconfig:`FILE_SYSTEM_LITTLEFS <CONFIG_FILE_SYSTEM_LITTLEFS>` && \ :kconfig:`FILE_SYSTEM <CONFIG_FILE_SYSTEM>`

*(Includes any dependencies from ifs and menus.)*

Default
=======

- 64

Kconfig definition
==================



At ``<Zephyr Subsystem>/fs/Kconfig.littlefs:43``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:44`` → ``<Zephyr Subsystem>/Kconfig:25`` → ``<Zephyr Subsystem>/fs/Kconfig:61``

Menu path: (Top) → Sub Systems and OS Services → File Systems → File system support → LittleFS support → LittleFS Settings

.. code-block:: kconfig

    config FS_LITTLEFS_CACHE_SIZE
    	int "Size of block caches in bytes" if FILE_SYSTEM_LITTLEFS
    	default 64
    	depends on FILE_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.)*