Jim Lesurf writes:
I've see all these suggested on webpages. Some look like synonyms with
different settings, but others don't.

So what's the recipy?

That depends what you want. Only you can decide that. ‘man mount’
describes the meaning of the options. On one system I have:

tmpfs /tmp tmpfs defaults,size=8G,nr_inodes=256k,nosuid 0 0

What I'd like is a ramdisc at /mnt/ramdisc which is of modest size and I
can use for temporary files.

NB tmpfs is _not_ a ramdisc; it is a filesystem that uses virtual
memory. The different from a traditional RAM disk is that there is no
underlying block device and its contents may be swapped out.

--
http://www.greenend.org.uk/rjk/