Re: Low CPU Usage

From: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
To: "Luiz K(dot) Matsumura" <luiz(at)planit(dot)com(dot)br>, <brauagustin-susc(at)yahoo(dot)com(dot)ar>
Cc: <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Low CPU Usage
Date: 2007-09-21 20:57:34
Message-ID: 46F3E9ED.EE98.0025.0@wicourts.gov
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>>> On Fri, Sep 21, 2007 at 3:40 PM, in message <46F42C54(dot)7070901(at)planit(dot)com(dot)br>,
"Luiz K. Matsumura" <luiz(at)planit(dot)com(dot)br> wrote:

> but in suddenly the performance slow down. We noticed that the problem
> was with the time to connect with the server, that was very slow.

> I think that was some DNS problem (but not sure), because one time we
> cleared nameserver clauses in the /etc/resolv.conf the performance
> return to the normal.

You may have it there. In some versions of Java, on Windows, connection
times are horribly slow unless the machine's IP address has a reverse
DNS entry. Perhaps the new machine lacks such an entry, or there's a
different version of Java in use?

-Kevin

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