From: Richard Huxton <dev@archonet.com>
To: hatman <joel.winteregg@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Insert performance
Date: Tue, 06 Mar 2007 07:34:46 +0000
Message-ID: <45ED1996.7050008@archonet.com> (raw)
In-Reply-To: <1172596221.393824.41130@j27g2000cwj.googlegroups.com>
References: <1172596221.393824.41130@j27g2000cwj.googlegroups.com>
hatman wrote:
> Dear all,
>
> After many tests and doc reading, i finally try to get help from
> you...
>
> Here is my problem. With some heavy insert into a simple BD (one
> table, no indexes) i can't get better perf than 8000 inserts/sec. I'm
> testing it using a simple C software which use libpq and which use:
> - Insert prepared statement (to avoid too many request parsing on the
> server)
> - transaction of 100000 inserts
Are each of the INSERTs in their own transaction?
If so, you'll be limited by the speed of the disk the WAL is running on.
That means you have two main options:
1. Have multiple connections inserting simultaneously.
2. Batch your inserts together, from 10 to 10,000 per transaction.
Are either of those possible?
--
Richard Huxton
Archonet Ltd
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To: pgsql-performance@postgresql.org
Cc: dev@archonet.com, joel.winteregg@gmail.com
Subject: Re: Insert performance
In-Reply-To: <45ED1996.7050008@archonet.com>
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