On Jun 26, 2007, at 13:49 , Heikki Linnakangas wrote:
Maximum is 0.9, to leave some headroom for fsync and any other things that need to happen during a checkpoint.
I think it might be more user-friendly to make the maximum 1 (meaning as much smoothing as you could possibly get) and internally reserve a certain amount off for whatever headroom might be required. It's more common for users to see a value range from 0 to 1 rather than 0 to 0.9.
Michael Glaesemann grzm seespotcode net ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq