Good to know. The Nautilus file manager in Gnome also let you create the symlink using the GUI. So this can easily be done in Linux, as well, without actually using the command line.
I assume that usually the whole metadata.db will automatically be cached in RAM. So the gains may not be very big when you just browse and read. When you update metadata, the speedup may be greater.
Plenty of memory in the computer probably is the best and safest way to speed up Calibre.
Last edited by Adoby; 09-02-2012 at 02:40 AM.