Simon Riggs wrote: > On 15 April 2015 at 12:39, Robert Haas <robertmh...@gmail.com> wrote:
> On 04/15/2015 05:44 PM, Alvaro Herrera wrote: > > Robert's proposal is "when reading a page, if dirty HOT-clean it; if not > > dirty, also HOT-clean it but only 5 times in each scan". This runs > > HOT-cleanup some number of times (as many as there are dirty), and > > causes at most 5 pages to become dirty. > > My understanding of Robert's proposal was "when reading a page, > HOT-clean it, but only do this up to 5 times on clean pages, but > continue to do this indefinitely when the page is already dirty.". To me, both statements look identical. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
