How to Delete Buffers and Cache Memory in Linux
Step 1: Check Buffers & Cache Memory
To check the buffers and cache memory in linux, execute the following command:
# free total used free shared buff/cache available Mem: 1015944 211640 94724 57700 709580 562416 Swap: 0 0 0
Step 2: Check Buffers & Cache Memory
Now delete and check the buffers and cache memory it will be reduced:
# sync && echo 3 > /proc/sys/vm/drop_caches && free
Following are the Linux Kernal that how can we drop the various aspects of cached items by changing the numeric argument to the above command
To free pagecache:
# echo 1 > /proc/sys/vm/drop_caches
To free dentries and inodes:
# echo 2 > /proc/sys/vm/drop_caches
To free pagecache, dentries and inodes:
# echo 3 > /proc/sys/vm/drop_caches