> vacuum should be a process with the least amount of voodoo.
> If we can just have vacuum_delay and vacuum_threshold, where
> threshold allows an arbitrary setting of how much bandwidth
> we will allot to the process, then that is a beyond wonderful thing.
>
> It is easy to determine how much IO you have, and what you can spare.
The tricky part is what metric to use. Imho "IO per second" would be
good.
In a typical DB scenario that is the IO bottleneck, not the Mb/s.
Andreas
