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Which is the best option to drop cache in /proc/sys/vm/drop_caches file for oracle 19cRAC DB LINUX7

edited Feb 3, 2023 4:22PM in Database Administration (MOSC) 1 commentAnswered

Currently we have 1 setting in /proc/sys/vm/drop_caches file.

Kindly confirm which configuration better for database so we can reduced the cache memory.

  

     Note: The default bevhaviour denoted by value "0" is to allocate all RAM to "cached" memory.

        0 -> Will give the Kernel full control to the cache memory 

       1 -> Will free the page cache 

       2 -> Will free dentries and inodes 

       3 -> Will free dentries and inodes as well as page cache 

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