From: Luke Lonergan <llonergan@greenplum.com>
To: Madison Kelly <linux@alteeve.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: MySQL is faster than PgSQL but a large margin in
Date: Wed, 21 Dec 2005 23:10:43 -0800
Message-ID: <BFCF9173.194ED%llonergan@greenplum.com> (raw)
In-Reply-To: <43AA4F97.40201@alteeve.com>
Madison,
On 12/21/05 11:02 PM, "Madison Kelly" <linux@alteeve.com> wrote:
> Currently 7.4 (what comes with Debian Sarge). I have run my program on
> 8.0 but not since I have added MySQL support. I should run the tests on
> the newer versions of both DBs (using v4.1 for MySQL which is also
> mature at this point).
Yes, this is *definitely* your problem. Upgrade to Postgres 8.1.1 or
Bizgres 0_8_1 and your COPY speed could double without even changing fsync
(depending on your disk speed). We typically get 12-14MB/s from Bizgres on
Opteron CPUs and disk subsystems that can write at least 60MB/s. This means
you can load 100GB in 2 hours.
Note that indexes will also slow down loading.
- Luke
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-performance@postgresql.org
Cc: llonergan@greenplum.com, linux@alteeve.com
Subject: Re: MySQL is faster than PgSQL but a large margin in
In-Reply-To: <BFCF9173.194ED%llonergan@greenplum.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