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Re: Benchmarck PostgreSQL 8.1.4 MySQL 5.0.20 and Oracle

From: Chris Mair <list(at)1006(dot)org>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: Benchmarck PostgreSQL 8.1.4 MySQL 5.0.20 and Oracle
Date: 2006-05-18 10:16:13
Message-ID: 1147947373.7943.35.camel@dell.home.lan (view raw or flat)
Thread:
Lists: pgsql-performance
Hello :)

What version would PostgreSQL 8.1.4 be?

> I'm running a benchmark with theses 3 databases, and the first results
> are not very good for PostgreSQL.

Could you give us some more infos about the box' performance while you
run the PG benchmark? A few minutes output of "vmstat 10" maybe? What
does "top" say?

> My benchmark uses the same server for theses 3 databases :
> Dell Power edge - Xeon 2.8 Ghz - 2 Go Ram - 3 SCSI disks - Debian
> Sarge - Linux 2.6

How are you using the 3 disks? Did you split pg_xlog and the database
on different disks or not?

> The transactions are a random mix of request in read (select) and
> write (insert, delete, update) on many tables about 100 000 to 15 000
> 000 rows.
> 
> Transactions are executed from 500 connections.

Can you say something about the clients? Do they run over network from
other hosts? What language/bindings do they use?

When they do inserts, are the inserts bundled or are there
single insert transactions? Are the statements prepared?


Bye, Chris.





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Subject: Re: Benchmarck PostgreSQL 8.1.4 MySQL 5.0.20 and Oracle
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