Re: count(*) performance

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Gábriel Ákos wrote:
Luke Lonergan wrote:
Gabriel,

On 3/27/06 10:05 AM, "Gábriel Ákos" <akos.gabriel@xxxxxxxxxx> wrote:

That gave me an idea. I thought that autovacuum is doing it right, but I
issued a vacuum full analyze verbose , and it worked all the day.
After that I've tweaked memory settings a bit too (more fsm_pages)

Oops! I replied to your disk speed before I saw this.

The only thing is - you probably don't want to do a "vacuum full", but
rather a simple "vacuum" should be enough.

I thought that too. Autovacuum is running on our system but it didn't do the trick. Anyway the issue is solved, thank you all for helping. :)

Yeah, it would be nice of autovacuum had some way of raising a flag to the admin that given current settings (thresholds, FSM etc...), it's not keeping up with the activity. I don't know how to do this, but I hope someone else has some good ideas.

Matt



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