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Re: Deadline-Based Vacuum Delay

From: Jim Nasby <decibel(at)decibel(dot)org>
To: Chris Browne <cbbrowne(at)acm(dot)org>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Deadline-Based Vacuum Delay
Date: 2007-01-03 15:26:34
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On Dec 29, 2006, at 12:30 PM, Chris Browne wrote:
> How you get the work to spread consistently across 6 hours is a
> challenge; personally, my preference would generally be to try to get
> the work done ASAP, so the goal seems a tad off to me...

Agreed. If we're going to monkey with automatically setting vacuum  
cost GUCs I'd *much* rather work towards having some kind of I/O  
priority scheme; that would allow vacuum to use as much I/O as it  
wants, provided nothing else in the system needs it.
Jim Nasby                                            jim(at)nasby(dot)net
EnterpriseDB      512.569.9461 (cell)

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