Quick Answer: What Is Linux Buffer Cache?

Buffers are the disk block representation of the data that is stored under the page caches. Buffers contains the metadata of the files/data which resides under the page cache.

Is it safe to clear buffer cache in Linux?

This is not recommended to clear the memory cache on Linux systems, but it is safe. But clearing cache may cause performance issues with the system. Since it discards cached objects from memory, it may cost a significant amount of I/O and CPU to recreate the dropped objects.

What is buffers and cache in Linux memory?

The buffers number represents in-memory blocks that result from the kernel accessing the disk, such as when the kernel needs to read the contents of files. The cached figure tells us how much RAM is being used to cache the content of recently read files.