After seeing�the comment�by�Anonymous�on the question�How is the /tmp directory cleaned up?, I found that it would be a great idea to implement on my system, since I have 16GB of RAM and I never used all of it.

My temporary files never get written to the disk. They get written to a RAM disk. I did put�tmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0�in /etc/fstab.

My question is:

Can I set a maximum value for RAM Usage for�/tmp? And in that case, what would happen if the maximum amount got exceeded, would it write into the hard-disk drive?

I have read a solution which states:

mkdir -p /tmp/ram
sudo mount -t tmpfs -o size=512M tmpfs /tmp/ram/

But in my understanding, this won't be a permanent solution. If I need it to be permanent, it has to be added to the�/etc/fstab�configuration file.

If this is the correct solution, how can I transform that mount command into a line in�/etc/fstab?