Set up /tmp as ramdisk

See also LinuxRamDisk.

In /etc/fstab add something like

tmpfs /tmp tmpfs defaults,noatime,nosuid,nodev,mode=1777,size=1024M 0 0

or

tmpfs /tmp tmpfs defaults,noatime,nosuid,nodev,noexec,mode=1777,size=512M 0 0

the noexec option perhaps has some uses, but can be annoying.