"Kevin Grittner" <[EMAIL PROTECTED]> writes: > On Thu, Sep 6, 2007 at 11:27 AM, in message > <[EMAIL PROTECTED]>, Greg Smith > <[EMAIL PROTECTED]> wrote: >> With the default delay of 200ms, this has the LRU-writer scanning the >> whole pool every 1 second, > > Whoa! Apparently I've totally misread the documentation. I thought that > the bgwriter_lru_percent was scanned from the lru end each time; I would > not expect that it would ever get beyond the oldest 10%.
I believe you're correct and Greg got this wrong. I won't draw any conclusions about whether the LRU stuff is actually doing you any good though. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend