From: Cosimo Streppone <cosimo@streppone.it>
To: Postgresql Performance List <pgsql-performance@postgresql.org>
Subject: Update on high concurrency OLTP application and Postgres 8 tuning
Date: Wed, 20 Sep 2006 11:09:23 +0200
Message-ID: <45110543.6020501@streppone.it> (raw)
Hi all,
I was searching tips to speed up/reduce load on a Pg8 app.
Thank you for all your suggestions on the matter.
Thread is archived here:
http://www.mail-archive.com/pgsql-performance@postgresql.org/msg18342.html
After intensive application profiling and database workload analysis,
I managed to reduce CPU load with application-level changes.
For database overload in presence of many concurrent
transactions, I found that just doing an "ANALYZE" on sensible
relations makes the situation better.
I scheduled a cron job every hour or so that runs an analyze on the
4/5 most intensive relations and sleeps 30 seconds between every
analyze.
This has optimized db response times when many clients run together.
I wanted to report this, maybe it can be helpful for others
out there... :-)
--
Cosimo
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Cc: cosimo@streppone.it
Subject: Re: Update on high concurrency OLTP application and Postgres 8 tuning
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