On Fri, Jan 20, 2012 at 10:38 AM, Simon Riggs <si...@2ndquadrant.com> wrote: > On Fri, Jan 20, 2012 at 3:32 PM, Robert Haas <robertmh...@gmail.com> wrote: >> On Fri, Jan 20, 2012 at 10:16 AM, Simon Riggs <si...@2ndquadrant.com> wrote: >>> On Fri, Jan 20, 2012 at 1:37 PM, Robert Haas <robertmh...@gmail.com> wrote: >>>> On Sun, Jan 8, 2012 at 9:25 AM, Simon Riggs <si...@2ndquadrant.com> wrote: >>>>> I've taken that idea and used it to build a second Clog cache, known >>>>> as ClogHistory which allows access to the read-only tail of pages in >>>>> the clog. Once a page has been written to for the last time, it will >>>>> be accessed via the ClogHistory Slru in preference to the normal Clog >>>>> Slru. This separates historical accesses by readers from current write >>>>> access by committers. Historical access doesn't force dirty writes, >>>>> nor are commits made to wait when historical access occurs. >>>> >>>> This seems to need a rebase. >>> >>> Still applies and compiles cleanly for me. >> >> D'oh. You're right. Looks like I accidentally tried to apply this to >> the 9.1 sources. Sigh... > > No worries. It's Friday.
http://www.youtube.com/watch?v=kfVsfOSbJY0 Of course, I even ran git log to check that I had the latest sources... but what I had, of course, was the latest 9.1 sources, which still have recently-timestamped commits, and I didn't look carefully enough. Sigh. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
