From: Mark Kirkwood <markir@paradise.net.nz>
To: Joshua D. Drake <jd@commandprompt.com>
Cc: Jonah H. Harris <jonah.harris@gmail.com>
Cc: Shiva Sarna <shivasarna@yahoo.co.in>
Cc: pgsql-performance@postgresql.org
Subject: Re: increasing database connections
Date: Thu, 01 Mar 2007 20:07:06 +1300
Message-ID: <45E67B9A.8030209@paradise.net.nz> (raw)
In-Reply-To: <45E6702A.5060602@commandprompt.com>
References: <20070301051859.65918.qmail@web7714.mail.in.yahoo.com>
<36e682920702282149y3529b175ob5814e3f957aec15@mail.gmail.com>
<45E6702A.5060602@commandprompt.com>
Joshua D. Drake wrote:
> Jonah H. Harris wrote:
>> On 3/1/07, Shiva Sarna <shivasarna@yahoo.co.in> wrote:
>>> I am sorry if it is a repeat question but I want to know if database
>>> performance will decrease if I increase the max-connections to 2000. At
>>> present it is 100.
>> Most certainly. Adding connections over 200 will degrade performance
>> dramatically. You should look into pgpool or connection pooling from
>> the application.
>
> huh? That is certainly not my experience. I have systems that show no
> depreciable performance hit on even 1000+ connections. To be fair to the
> discussion, these are on systems with 4+ cores. Usually 8+ and
> significant ram 16/32 gig fo ram.
Yeah - I thought that somewhere closer to 10000 connections is where you
get hit with socket management related performance issues.
Cheers
Mark
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To: pgsql-performance@postgresql.org
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Subject: Re: increasing database connections
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