Bruce Momjian <pgman@candle.pha.pa.us> writes: > So are you saying you are making T1, T2, B1, and B2 a fixed percentage > of the buffer cache rather than making them adjust over time?
B2 goes away entirely (if we keep four lists we violate claim 45) and the other lists become fixed length, yes. We could also contemplate making them variable length according to some other set of rules than ARC's, but then you get into having to parse the other sixty-odd claims of the patent and decide what is a "different enough" rule. At the moment I'm not seeing evidence that a variable policy beats a fixed policy anyway. Unless someone comes up with a benchmark showing a substantial advantage for ARC over 2Q, I think we should just declare victory over this problem. We have plenty of other tasks on our plates. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq