On Wed, 15 Jan 2014 09:23:52 +1100 Dave Chinner <da...@fromorbit.com> wrote:
> It appears to me that we are seeing large memory machines much more > commonly in data centers - a couple of years ago 256GB RAM was only > seen in supercomputers. Hence machines of this size are moving from > "tweaking settings for supercomputers is OK" class to "tweaking > settings for enterprise servers is not OK".... > > Perhaps what we need to do is deprecate dirty_ratio and > dirty_background_ratio as the default values as move to the byte > based values as the defaults and cap them appropriately. e.g. > 10/20% of RAM for small machines down to a couple of GB for large > machines.... I had thought that was already in the works...it hits people on far smaller systems than those described here. http://lwn.net/Articles/572911/ I wonder if anybody ever finished this work out for 3.14? jon -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers