[gentoo-user] Optimizations for SSD netbook

[Grant]

My girlfriend is at her wit's end with her SSD netbook and is now
hogging my laptop.  Her netbook has 1GB RAM that could be upgraded to
1.5GB, but I've read that it's a pain.  It already runs xfce4, and
I've just made these optimizations based on past discussions:

1. CFLAGS="-march=prescott -0s -pipe -fomit-frame-pointer -ssse3"
2. added elevator=noop as a boot parameter
3. disabled DRI to save 32MB RAM
4. removed the swap partition from /etc/fstab

Am I missing anything significant?  I've read that it's good to set up
/tmp in RAM.  How can I do that?  In /etc/fstab I have:

shm /dev/shm tmpfs nodev,nosuid,noexec

Is that related?

- Grant