pg.ddx.io  pgsql-interfaces@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Jason Earl <jearl@box100.com>
To: eg@tzv.fal.de
Cc: pgsql-interfaces@postgreSQL.org
Subject: Re: [INTERFACES] Vacuum takes for ever
Date: Mon, 17 May 1999 12:06:08 -0600
Message-ID: <199905171806.MAA27409@earlj.nesusa.com> (raw)
In-Reply-To: <99051709490504.00692@salo.tzv.fal.de>
References: <99051709490504.00692@salo.tzv.fal.de>

   Hello everyone,

   in a substantial multi location development project we are using PG
   to create a large information system.  After having loaded data in
   the order of one million records a vaccum took 50h of CPU time on a
   350MHz PII (RedHat 5.2, pg 6.4.2). There were no deletes or anyting
   like that.

I made a test database when I was deciding whether PostgreSQL was
going to be up to the task.  It just so happens that it had a million
records in it as well.  The first vacuum took a very very long time,
subsequent vacuums, however, took much less time.

   What does vaccum do that takes so long and is there a way to speed
   this up?

Apparently it does some "database stuff."  Yikes, someone else will
have to answer that question.  I just know how to get data in and out
of PostgreSQL.

Jason Earl



view thread (4+ messages)  latest in thread

Message-ID: <199905171806.MAA27409@earlj.nesusa.com>
Permalink:  ../199905171806.MAA27409@earlj.nesusa.com/
Also on:    postgresql.org/message-id/199905171806.MAA27409@earlj.nesusa.com

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-interfaces@postgresql.org
  Cc: jearl@box100.com, eg@tzv.fal.de
  Subject: Re: [INTERFACES] Vacuum takes for ever
  In-Reply-To: <199905171806.MAA27409@earlj.nesusa.com>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox