I've been wanting to make us of a ramdisk on my Ubuntu system for a while, and have done a bit of reading online. Most of the advice centres around using /dev/shm to move files into RAM.
I wanted to try this out so I copied six 1GB files to /dev/shm, but according to gnome-system-monitor my RAM usage did not budge above 1.4GB. Is this how /dev/shm operates, or is there something else I need to do/use to ensure that files are stored in RAM and not on the HDD.
The reason I'm after the ramdisk is to speed up the analyses I run on this machine. Currently it uses at most about 1.6GB of the 24GB installed in the machine, and all that extra RAM doing nothing seems a bit of a shame.