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. -- Simon Riggs http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, 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
