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Date: Tue, 21 Aug 2007 17:49:13 +0200
From: Julius Stroffek <Julius.Stroffek@Sun.COM>
Subject: Re: Performance Solaris vs Linux
In-reply-to: <a4bdbee90708162350j56004afwfb26626dd6d53e8a@mail.gmail.com>
To: Fredrik Bertilsson <frebe73@gmail.com>
Cc: pgsql-performance@postgresql.org
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Hi Frederick,

There is an article about tunning the performance of PostgreSQL on 
Solaris at
http://tweakers.net/reviews/649/9

which is not quite exactly of what you wanted but it might help you.

I think that Solaris has disk cache turned off by default which linux 
does not have
due to possible data loss in case of a power failure.

Regards,

Julo

Fredrik Bertilsson wrote:
> Hi,
> we are using Postgres on both Solaris servers and Linux servers, and 
> Postgres are much slower on Solaris servers. We have tested with 
> different versions of Solaris and Postgres, but the fact remains: 
> Postgres seems to be much faster on Linux server. Does anybody else 
> has the same experience?
>
> Best regards,
> Fredrik B

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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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</head>
<body bgcolor="#ffffff" text="#000000">
<font face="serif">Hi Frederick,<br>
<br>
There is an article about tunning the performance of PostgreSQL on
Solaris at<br>
<a class="moz-txt-link-freetext" href="http://tweakers.net/reviews/649/9">http://tweakers.net/reviews/649/9</a><br>
<br>
which is not quite exactly of what you wanted but it might help you.<br>
<br>
I think that Solaris has disk cache turned off by default which linux
does not have<br>
due to possible data loss in case of a power failure.<br>
<br>
Regards,<br>
<br>
Julo<br>
</font><br>
Fredrik Bertilsson wrote:
<blockquote
 cite="mida4bdbee90708162350j56004afwfb26626dd6d53e8a@mail.gmail.com"
 type="cite">Hi,<br>
we are using Postgres on both Solaris servers and Linux servers, and
Postgres are much slower on Solaris servers. We have tested with
different versions of Solaris and Postgres, but the fact remains:
Postgres seems to be much faster on Linux server. Does anybody else has
the same experience?
  <br>
  <br>
Best regards,<br>
Fredrik B<br>
</blockquote>
</body>
</html>

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