From: Scott Marlowe <smarlowe@g2switchworks.com>
To: Merlin Moncure <mmoncure@gmail.com>
Cc: Karen Hill <karen_hill22@yahoo.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: How long should it take to insert 200,000 records?
Date: Tue, 06 Feb 2007 10:55:53 -0600
Message-ID: <1170780953.5451.99.camel@state.g2switchworks.com> (raw)
In-Reply-To: <b42b73150702060840y5594ca57mace48fdbdb21fb78@mail.gmail.com>
References: <1170722158.973141.208230@j27g2000cwj.googlegroups.com>
<1170778484.5451.97.camel@state.g2switchworks.com>
<b42b73150702060840y5594ca57mace48fdbdb21fb78@mail.gmail.com>
On Tue, 2007-02-06 at 10:40, Merlin Moncure wrote:
> On 2/6/07, Scott Marlowe <smarlowe@g2switchworks.com> wrote:
> > On Mon, 2007-02-05 at 18:35, Karen Hill wrote:
> > > I have a pl/pgsql function that is inserting 200,000 records for
> > > testing purposes. What is the expected time frame for this operation
> > > on a pc with 1/2 a gig of ram and a 7200 RPM disk? The processor is
> > > a 2ghz cpu. So far I've been sitting here for about 2 million ms
> > > waiting for it to complete, and I'm not sure how many inserts postgres
> > > is doing per second.
> >
> > That really depends. Doing 200,000 inserts as individual transactions
> > will be fairly slow. Since PostgreSQL generally runs in autocommit
> > mode, this means that if you didn't expressly begin a transaction, you
> > are in fact inserting each row as a transaction. i.e. this:
>
> I think OP is doing insertion inside a pl/pgsql loop...transaction is
> implied here.
Yeah, I noticed that about 10 seconds after hitting send... :)
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To: pgsql-performance@postgresql.org
Cc: smarlowe@g2switchworks.com, mmoncure@gmail.com, karen_hill22@yahoo.com
Subject: Re: How long should it take to insert 200,000 records?
In-Reply-To: <1170780953.5451.99.camel@state.g2switchworks.com>
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