Josh Berkus <j...@agliodbs.com> writes: > Well, I think it's "plausible but wrong under at least some common > circumstances". In addition to seeking, it ignores FS cache effects > (not that I have any idea how to account for these mathematically). It > also makes the assumption that 3 autovacuum workers running at 1/3 speed > each is better than having one worker running at full speed, which is > debatable.
Well, no, not really, because the original implementation with only one worker was pretty untenable. But maybe we need some concept like only one worker working on *big* tables? Or at least, less than max_workers of them. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers