value lower than this limit will be ignored and the old configuration will be
retained.
-Note: the value of dirty_bytes also must be set greater than
-dirty_background_bytes or the amount of memory corresponding to
-dirty_background_ratio.
-
==============================================================
dirty_expire_centisecs
The total available memory is not equal to total system memory.
-Note: dirty_ratio must be set greater than dirty_background_ratio or
-ratio corresponding to dirty_background_bytes.
-
==============================================================
dirty_writeback_centisecs
swappiness
This control is used to define how aggressive the kernel will swap
-memory pages. Higher values will increase agressiveness, lower values
+memory pages. Higher values will increase aggressiveness, lower values
decrease the amount of swap. A value of 0 instructs the kernel not to
initiate swap until the amount of free and file-backed pages is less
than the high water mark in a zone.