Serving html from linux ramdisk

StCee asked:

I have seen a somewhat dated tutorial that suggest serving html files with a ramdisk
like this:

mkfs -q /dev/ram1 102400

I also find another source that use something like this:

mount -t tmpfs -o size=1024 none /mnt/rds

Are these two methods equally valid? I am using Centos 6.3 with nginx. So in practice I want to serve the files in /usr/share/nginx/html from RAM.

And in case I mounted the disk, do I have to mount again whenever there is a genuine change in the original folder?

My answer:


Why bother? Linux is just going to cache them in RAM anyway, the first time they get read from disk. And if they’re read frequently enough they’ll always be cached.


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