On Thu, 2013-01-17 at 19:58 +0000, Simon Riggs wrote: > Presumably we remember the state of the VM so we can skip the re-visit > after every write?
That was not a part of my patch, although I remember that you mentioned that previously and I thought it could be a good way to mitigate a problem if it ever came up. However, the tests I did didn't show any problem there. The tests were somewhat noisy, so perhaps I was doing something wrong, but it didn't appear that looking at the VM page for every update was a bottleneck. Regards, Jeff Davis -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers