Mailing-List: contact users-help@tomcat.apache.org; run by ezmlm
Precedence: bulk
Reply-To: "Tomcat Users List" <users@tomcat.apache.org>
Received-SPF: pass (herse.apache.org: local policy)
Mime-Version: 1.0 (Apple Message framework v752.3)
In-Reply-To: <11806665.post@talk.nabble.com>
References: <11804198.post@talk.nabble.com> <11806665.post@talk.nabble.com>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
Message-Id: <DB48EED8-B24F-4CA5-89DF-97EF7921FB1A@2sheds.de>
Content-Transfer-Encoding: 7bit
From: Andrew Miehs <andrew@2sheds.de>
Subject: Re: Tomcat with 8 GB memory
Date: Thu, 26 Jul 2007 11:03:59 +0200
To: "Tomcat Users List" <users@tomcat.apache.org>


On 26/07/2007, at 10:57 AM, Joe Nathan wrote:
> I would discourage to use such machine! 8GB means you are using 64 bit
> machine which will be much slower than 32 bit machines. Big memory  
> is useful
> ONLY if you have applications that can benefit big memory such as  
> database
> systems. In Java, if you use lots of memory and create lots of  
> objects, your
> Java applications will have periodic seisures! This is because of  
> garbage
> collection will take significant time, if started.

Dear Joe - I have more than 1 or 2 of these machines (16GB RAM, 6GB  
for Tomcat).

The Sun 64bit JVM 1.5 is about 15% faster than the 32bit for our  
application.
(Running under Tomcat)


> I would be happy with 1 ~ 2 GB 32bit machines! This could deliver much
> faster services.

Java eats memory...

The more memory you have, the more you can cache and the less you  
need to
annoy your backend.


Andrew

---------------------------------------------------------------------
To start a new topic, e-mail: users@tomcat.apache.org
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org