Heikki Linnakangas <[EMAIL PROTECTED]> 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 ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings