Re: BUG #13750: Autovacuum slows down with large numbers of tables. More workers makes it slower.

David Gould wrote:

> The cost delays are all 0. We care about bloat, not bandwidth.
>
> Anyway, they are not actually vacuuming. They are waiting on the
> VacuumScheduleLock. And requesting freshs snapshots from the
> stats_collector.

Oh, I see.  Interesting.  Proposals welcome.  I especially dislike the
("very_expensive") pgstat check.

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Álvaro Herrera                http://www.2ndQuadrant.com/
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