[ Thanks to fewt for this link.
]
“While working with netbooks and other portable
computers over the years I have always looked for new ways to
improve battery life, but I have also been concerned with
maximizing performance of these small systems. Today I would like
to share with you a simple trick to improve performance and the
overall “feel” of your computer.“To improve performance while also improving battery life we
will be moving all of your temp files and logs to RAM. This
significantly reduces IO from some applications (think Firefox /
flash) while eliminating the need to wake your hard drive from a
sleep state (think battery life).“First, edit FSTAB and add the following lines:”