Message-Id: <1167922013.8482.283102539@webmail.messagingengine.com>
From: "Jeremy Haile" <jhaile@fastmail.fm>
To: pgsql-performance@postgresql.org
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	<459C39BF.4070403@hagander.net>
Subject: Re: Performance of PostgreSQL on Windows vs Linux
In-Reply-To: <459C39BF.4070403@hagander.net>
Date: Thu, 04 Jan 2007 09:46:53 -0500

Thanks for the response!  I know I have to benchmark them to get a real
answer.  I am just looking to hear someone say "We benchmarked Linux vs.
Windows with similar configuration and hardware and experienced a 25%
performance boost in Linux."  or "We benchmarked them and found no
significant difference."  

I realize the situation varies based on usage patterns, but I'm just
looking for some general info based on anyone else's experiences.  

My usage pattern is a single application that hits the database.  The
application uses a connection pool, so opening lots of connections is
not a huge issue.  However - it does have very large tables and
regularly queries and inserts into these tables.  I insert several
million rows into 3 tables every day - and also delete about the same
amount.


On Thu, 04 Jan 2007 00:18:23 +0100, "Magnus Hagander"
<magnus@hagander.net> said:
> Jeremy Haile wrote:
> > I am sure that this has been discussed before, but I can't seem to find
> > any recent posts. (I am running PostgreSQL 8.2)
> > 
> > I have always ran PostgreSQL on Linux in the past, but the company I am
> > currently working for uses Windows on all of their servers.  I don't
> > have the luxury right now of running my own benchmarks on the two OSes,
> > but wanted to know if anyone else has done a performance comparison.  Is
> > there any significant differences?
> 
> That depends on your usage pattern. There are certainly cases where the
> Win32 version will be significantly slower.
> For example, if you open a lot of new connections, that is a lot more
> expensive on Windows since each connection needs to execute a new
> backend due to the lack of fork().
> 
> I don't think you'll find any case where the Windows version is faster
> than Linux ;-) But to get a good answer on if the difference is
> significant enough to matter, you really need to run some kind of simple
> benchmark on *your* workload.
> 
> //Magnus