On Sun, Feb 16, 2014 at 6:26 PM, Robert Haas <robertmh...@gmail.com> wrote:
> The current bgwriter_lru_maxpages value limits the background writer > to a maximum of 4MB/s. If one imagines shared_buffers = 8GB, that > starts to seem rather low, but I don't have a good feeling for what a > better value would be. > I don't quite understand the point of bgwriter_lru_maxpages in the first place. What is it supposed to protect us from? I wonder if that isn't an artefact from when the checkpointer was the same process as the background writer, to prevent the background writer functionality from starving the checkpointer functionality. Cheers, Jeff
