if you wanted additional ram you could have tried to swapon the RSX memory..
Code:
sudo su -
swapon -s
Check current SWAP
mkswap /dev/ps3vram
swapon /dev/ps3vram
vim /etc/udev/rules.d/10-ps3vram-swap.rules
# udev rules to automatically enable swap on /dev/ps3vram
# Copy this file to /etc/udev/rules.d/10-ps3vram-swap.rules
# Choose only one of the rules below
# Initialize and enable swap unconditionally
KERNEL=="ps3vram", ACTION=="add", RUN+="/sbin/mkswap /dev/ps3vram", RUN+="/sbin/swapon -p 10 /dev/ps3vram"
reboot
sudo swapon -s
Verify additional SWAP space
http://www.ps3devwiki.com/index.php?...SX_RAM_as_SWAP