Re: Load distributed checkpoint V3

Heikki Linnakangas <heikki(at)enterprisedb(dot)com> writes:
> The number of buffers evicted by normal backends in a bgwriter_delay
> period is simple to keep track of, just increase a counter in
> StrategyGetBuffer and reset it when bgwriter wakes up. We can use that
> as an estimate of X with some safety margin.

You'd want some kind of moving-average smoothing in there, probably with
a lot shorter ramp-up than ramp-down time constant, but this seems
reasonable enough to try.

regards, tom lane