"Kevin Grittner" <Kevin.Grittner@wicourts.gov> writes:
> On Thu, Sep 6, 2007 at 11:27 AM, in message
> <Pine.GSO.4.64.0709061121020.14491@westnet.com>, Greg Smith
> <gsmith@gregsmith.com> 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