On 2021-May-14, Tom Lane wrote: > An idea I'd been toying with was to make invals probabilistic, that is > there would be X% chance of an inval being forced at any particular > opportunity. Then you could dial X up or down to make a tradeoff > between speed and the extent of coverage you get from a single run. > (Over time, you could expect pretty complete coverage even with X > not very close to 1, I think.)
Maybe we could say that debug_invalidate_system_caches_always=2 means to use the current behavior, and debug_invalidate_system_caches_always=1 uses some probabilistic rule? -- Álvaro Herrera Valdivia, Chile
