Robert Haas wrote:
Seems like you'd also need to think about priority inversion, if the "low-priority" backend is holding any locks.
Right, that's what I was alluding to in the last part: the non-obvious piece here is not how to decide when the backend should nap because it's done too much I/O, it's how to figure out when it's safe for it to do so without causing trouble for others.
-- Greg Smith 2ndQuadrant Baltimore, MD PostgreSQL Training, Services and Support g...@2ndquadrant.com www.2ndQuadrant.com -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
