Is tmpfs required or beneficial?

Posted June 28, 2014 2.4k views

Running centos 6.5 I notice I have a tmpfs using 256mb. Do I need it? Any downside to getting rid of it?

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Submit an Answer
1 answer

The tmpfs you see on a CentOS system is mounted as /dev/shm It’s equal to 50% of your physical RAM by default. It is shared memory which is mostly used for inter-process communication (IPC).