From: Oliver Crosby <ryusei@gmail.com>
To: Kevin Grittner <Kevin.Grittner@wicourts.gov>
Cc: jd@commandprompt.com
Cc: pgsql-performance@postgresql.org
Subject: Re: Looking for tips
Date: Tue, 19 Jul 2005 16:08:11 -0400
Message-ID: <1efd553a0507191308219a098b@mail.gmail.com> (raw)
In-Reply-To: <s2dd0700.023@gwmta.wicourts.gov>
References: <s2dd0700.023@gwmta.wicourts.gov>
> We had low resource utilization and poor throughput on inserts of
> thousands of rows within a single database transaction. There were a
> lot of configuration parameters we changed, but the one which helped the
> most was wal_buffers -- we wound up setting it to 1000. This may be
> higher than it needs to be, but when we got to something which ran well,
> we stopped tinkering. The default value clearly caused a bottleneck.
I just tried wal_buffers = 1000, sort_mem at 10% and
effective_cache_size at 75%.
The performance refuses to budge.. I guess that's as good as it'll go?
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To: pgsql-performance@postgresql.org
Cc: ryusei@gmail.com, Kevin.Grittner@wicourts.gov, jd@commandprompt.com
Subject: Re: Looking for tips
In-Reply-To: <1efd553a0507191308219a098b@mail.gmail.com>
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