Then I'm not sure I understand what you're trying to accomplish. You
can't change the number of requests per second by tuning, you can
only affect how many processes are running at one time competing for
and using resources. The lower the response time the less processes
however the response time will include the entire network, not just
your server as the connection is open until the TCP connection is
torn down and the server has a process for every connection. With
memory prices what they are there's really no excuse for not just
putting 4 GB of memory in the machine if that's what it's going to
take. Memory prices start at about $30 USD/GB right now.
--
Michael Conlen
On Sep 28, 2007, at 4:47 PM, Tony Anecito wrote:
I agree about latency and have tested for that all the
way to Europe and Asia. I did find a latency of 31ms
from my server to over 700 miles. I think the worst I
saw was still under 1 second.
Since my packet size typcally is under 1500 bytes
31msec is very much not an issue at this point but the
number requests at the server is my focus.
Thanks,
-Tony
--- Michael Conlen <[EMAIL PROTECTED]> wrote:
Tony,
The performance numbers you are talking about are
going to be
irrelevant over any but the fastest local links,
particularly using
TCP. RTT below 30ms are going to be rare within the
US and even on a
very good tier 1 provider (Verizon/Qwest) directly
you're not going
to get much better.
I think you've got yourself locked in to an idea of
how to solve a
problem without either a measurable problem or the
right idea of a
solution.
In your situation your solution might be to setup a
caching proxy
server on port 80 with apache and tomcat on
different ports and use
the proxy server to handle the requests. It should
be able to handle
static content with much less resources than Apache
can. At this
point you can tune apache down to the bare minimum.
As latency is
very low it shouldn't need many processes to serve
all requests.
Further if Apache isn't necessary for anything you
could serve the
static content from Tomcat and cache it in memory on
the proxy.
--
Michael Conlen
On Sep 28, 2007, at 2:40 PM, Tony Anecito wrote:
Hi Jeff,
I would agree except the current audience using my
portal is from all over the world so performance &
size of data is critical. Also with an upcoming GA
release the inital audience may be higher than a
million or so and grow hopefully quickly from
there.
The system is using an RIA client to reduce the
stress
on the servers but the goal is to have the worlds
fastest least expensive portal.
I have already gotten comments from clients
thousands
of miles away from the server of how the
performance
is such that the clients think the data from my
server
is faster than off a local hard drive.
That only happened because of the performance was
considered as important as the functionality and
still
is as you can tell.
Good point for most systems.
Regards,
Tony Anecito, Founder
MyUniPortal
--- Jeff Beard <[EMAIL PROTECTED]> wrote:
Tony,
I agree with Joshua: quite complicating things
for
yourself.
It sounds like you are trying to solve a
performance
problem of some sort
but speaking from experience those are highly
dubious pursuits unless you
have a very, very well qualified issue.
Otherwise,
it's purely academic
IMHO. I don't remember where I read this but the
rules for performance
tuning are something along the lines of:
1. Don't
2. Don't yet (for experts only)
My advice, don't worry about performance until
there
is a qualified
performance issue (i.e. one identified by a
customer/end user) and stick
with the Apache/mod_jk/Tomcat reverse proxy
configuration since it's an
industrial strength solution.
Cheers,
Jeff
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Joshua Slive
Sent: Friday, September 28, 2007 11:04 AM
To: users@httpd.apache.org
Subject: Re: [EMAIL PROTECTED] Tomcat and Apache on
the same port?
On 9/28/07, Tony Anecito <[EMAIL PROTECTED]>
wrote:
I have a web site with static content on it. My
router
has only one static ip thus one url and port.
Quit complicating your life. There are at least
three easy solutions
to your problem:
1. Tomcat CAN serve static content. So just use
tomact and forget
about apache httpd.
2. Use a standard apache httpd+tomcat install.
Lots of people do this
and it is plenty performant and not that
complicated.
3. Put the two on different ports (assuming your
ISP doesn't block
non-80 ports).
Joshua.
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