Linux - drop cache

Clear PageCache only:

# 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

Trace: • systemd_networkd • linux_drop_vm_cache

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