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From "Alex Turner" <>
Subject Re: Tomcat's scalability
Date Wed, 21 Jun 2006 15:39:06 GMT
This discussion focuses primarily on serving static files to a client, not
processing dynamic web pages.  Most people running tomcat are processing
dynamic pages, like getting data from a database and compositing a page
based on that data.

An FTP site, or a static web site will typically be I/O bound or Network
bound, and the only way to increase throughput it to increase the number of
I/Os per second that your server can manage or increase the size of your
network interface.  A java based dynamic website is typically not I/O bound,
but CPU bound, which posses a different set of challenges than a static FTP


On 6/21/06, Andrew Miehs <> wrote:
> Now that we are moving to the theoretical discussion, you will
> probably want to have a look at
> Regards
> Andrew
> On 21/06/2006, at 4:56 PM, Mladen Adamovic wrote:
> > I spoke recently with guy from Microsoft (project manager from
> > server division).
> > He said that heavily loaded web server don't lose much time to
> > switch processes but when you are out of free memory and server
> > start to swap, performances degrade dramatically.
> > I though that guy definitely knew what he was thought about.
> >
> > Lets see what operating system has to do when switch threads.
> > Just to move all registers to/from memory? Anything else?
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