I don't want to screw up what you guys are working on and I admit I've only been browsing bits of the thread so if I say anything that makes you go "huh?!?", just ignore me. I'm not exactly sure what you are up to but in most any situation it is also good to carefully consider your swap. Now I just noticed you are using two drives. Generally, you want to set your swap up with performance in mind. If you have multiple equal drives you would want to set swap partitions up on each drive.
The Linux kernel will manage the swap in such a way that you will get increased performance spreading across multiple drives. Now, if the drives are not of equal performance I am not sure of the benefit. You may be better off just putting swap on the fastest drive (you can use the "hdparm" command to test the drive throughputs). If you set the same priority on more than one swap partition the kernel will "stripe" your swap and you should see increased swap performance.
Obviously the best performance is achieved by having enough RAM so that paging never occurs but you already knew that. There are documents out there that describe how spreading your swap increases swap performance, and extra swap parameters you can use in your fstab for multiple swap devices. For instance, search for the word "swap" in this doc.
http://linas.org/linux/Software-RAID/Software-RAID-8.html[ September 09, 2002: Message edited by: void main ]