Re: VACUUM degrades performance significantly. Database becomes

From: Vivek Khera <khera(at)kcilink(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: VACUUM degrades performance significantly. Database becomes
Date: 2003-10-17 02:33:20
Message-ID: x7ptgwd24v.fsf@yertle.int.kciLink.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general

>>>>> "S" == Stephen <jleelim(at)xxxxxx(dot)com> writes:

S> The system is actually idling when I ran the tests (load average: 0.01,
S> 0.02, 0.00). When VACUUM runs, load average increases quickly (load average:
S> 1.77, 0.60, 0.21) just by running psql on command line and issuing 2
S> queries. I've been running PostgreSQL for over 3 years now and IIRC VACUUM

Your CPU usage is irrelevent here. What's your *disk* utilization.
Does linux have systat and/or iostat to tell you how busy your disks
are?

--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Vivek Khera, Ph.D. Khera Communications, Inc.
Internet: khera(at)kciLink(dot)com Rockville, MD +1-240-453-8497
AIM: vivekkhera Y!: vivek_khera http://www.khera.org/~vivek/

In response to

Responses

Browse pgsql-general by date

  From Date Subject
Next Message Kathy Zhu 2003-10-17 03:21:41 pg_atoi
Previous Message Claudio Lapidus 2003-10-17 01:58:26 Re: "slicing" records