On Sun, Feb 19, 2012 at 11:12 PM, Greg Smith <g...@2ndquadrant.com> wrote: > I'm collecting one last bit of data before posting another full set of > results, but I'm getting more comfortable the issue here is simply changes > in the BGW behavior. The performance regression tracks the background > writer maximum intensity.
That's really quite fascinating... but it seems immensely counterintuitive. Any idea why? BufFreelist contention between the background writer and regular backends leading to buffer allocation stalls, maybe? -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers