Guy Thornley <guy@esphion.com> writes:
> What sort of performance numbers are you looking for? Without the throttle,
> I/O is nuked and other database activity takes an age, and with it, its much
> happier?
Some people say that VACUUM nukes their performance, and some don't
find it to be a problem. AFAICT, it's only an issue if you have little
reserve disk bandwidth, which in itself is a dangerous situation for a
database that you don't want to pay attention to.
I don't want to sound like I'm rejecting your patch out of hand. What
I do want is to get some idea of its range of usefulness.
> We are beginning to learn that "DBMS" and "unattended" dont belong in the
> same sentence.
"Unattended" and "running on the edge of your resources" don't play nice
together, for sure.
regards, tom lane