@Urostor,

Thanks for the correction! I’ll use the proper command with ‘sudo‘ and ‘tee‘ to ensure the necessary permissions are applied when modifying cache settings.

You cannot directly echo to /proc/sys/vm/drop_caches as a regular user.

The correct command should be:

sudo sync; echo 1 | sudo tee /proc/sys/vm/drop_caches

This ensures you have the necessary permissions to modify the cache settings.

Clear PageCache:

sync; echo 1 > /proc/sys/vm/drop_caches

Clear Dentries and Inodes:

sync; echo 2 > /proc/sys/vm/drop_caches

Clear PageCache, Dentries, and Inodes:

sync; echo 3 > /proc/sys/vm/drop_caches

Clear Swap Space:

swapoff -a && swapon -a

Always use sync to avoid data loss. These commands help free up system memory without impacting performance.

You need to add sudo like so:

sudo sync; echo 1 | sudo tee /proc/sys/vm/drop_caches

@Kushagra,

Exactly. Clearing the cache while programs are running can remove essential files, leading to crashes and data corruption.