From: | Andrew Sullivan <andrew(at)libertyrms(dot)info> |
---|---|
To: | pgsql-performance(at)postgresql(dot)org |
Subject: | Re: PostgreSQL vs. MySQL |
Date: | 2003-07-04 14:28:00 |
Message-ID: | 20030704142800.GC4592@libertyrms.info |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-docs pgsql-general pgsql-hackers pgsql-performance |
On Fri, Jul 04, 2003 at 10:07:46AM -0400, Brian Tarbox wrote:
> 512 mb memory, latest production versions of each database. By vanilla
> RedHat I mean that I installed RH on a clean system, said install everything
> and did no customization of RH settings.
Does that include no customization of the Postgres settings?
> We had about 40 tables in the db, with joined queries on about 8-12 tables.
SELECTs only? because. . .
> of records. There were indexes on all join fields, and all join fields were
> listed as foriegn keys. All join fields were unique primary keys in their
. . .you know that FK constraints in Postgres are not cheap, right?
> I did no tuning of MySql. The only tuning for PG was to vacuum and vacuum
> analyze.
This appears to be a "yes" answer to my question above. Out of the
box, PostgreSQL is set up to be able to run on a 1992-vintage SGI
Indy with 8 M of RAM (ok, I may be exaggerating, but only by a bit);
it is not tuned for performance. Running without even tweaking the
shared buffers is guaranteed to get you lousy performance.
A
--
----
Andrew Sullivan 204-4141 Yonge Street
Liberty RMS Toronto, Ontario Canada
<andrew(at)libertyrms(dot)info> M2P 2A8
+1 416 646 3304 x110
From | Date | Subject | |
---|---|---|---|
Next Message | Rod Taylor | 2003-07-04 14:34:20 | Re: PostgreSQL vs. MySQL |
Previous Message | Tom Lane | 2003-07-04 14:23:24 | Re: PostgreSQL vs. MySQL |
From | Date | Subject | |
---|---|---|---|
Next Message | Rod Taylor | 2003-07-04 14:34:20 | Re: PostgreSQL vs. MySQL |
Previous Message | Tom Lane | 2003-07-04 14:23:24 | Re: PostgreSQL vs. MySQL |
From | Date | Subject | |
---|---|---|---|
Next Message | Rod Taylor | 2003-07-04 14:34:20 | Re: PostgreSQL vs. MySQL |
Previous Message | Tom Lane | 2003-07-04 14:23:24 | Re: PostgreSQL vs. MySQL |
From | Date | Subject | |
---|---|---|---|
Next Message | Rod Taylor | 2003-07-04 14:34:20 | Re: PostgreSQL vs. MySQL |
Previous Message | Tom Lane | 2003-07-04 14:23:24 | Re: PostgreSQL vs. MySQL |