So, a very simple algorithm would be: If the maximum number of workers have been running continuously for more than, say, 10 minutes, assume we're falling behind
Hmm, I don't know about the validity of this. I've seen plenty of cases where we hit the max workers but all is just fine. On the other hand, I don't have an alternative trigger point yet. But I do overall like the idea of dynamically changing the delay. And agree it is pretty conservative.
2. If we decided to gradually increase the rate of vacuuming instead of just removing the throttling all at once, what formula would we use and why would that be the right idea?
Well, since the idea of disabling the delay is on the table, we could raise the cost every minute by X% until we effectively reach an infinite cost / zero delay situation. I presume this would only affect currently running vacs, and future ones would get the default cost until things get triggered again?
