Hi Chris,

Yes, I am doing my measurements in a controlled
environment. As for measurments I have gone as far as
using a sniffer for looking at the tcp/ip
conversations.

I understand about the timers for Apache but as
hardware and the servlet containers (and jvms) get
faster the old timers become obsolete from my
perspective especially as companies want to shrink
thier data centers the metrics of how web and app
servers are doing become more important. CPU
utilization need to be complemented by response time
measurements for services. 

The faster the web and/or app server is the more
clients it can handle without adding hardware. Other
app server commercial products are starting to make a
big deal out of real-time responses (millisecond or
microsecond) when open source does not seem to even
able to tell you how good they are and I am trying to
prove that with open source and cheap hardware why buy
commercial grade? But to do that I need to prove it
not only in a controlled environment but the admins
need to see that in their logs to tell thier boss.

Does that help?

Thanks,
-Tony
 

--- Christopher Schultz <[EMAIL PROTECTED]>
wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Tony,
> 
> Tony Anecito wrote:
> > I would but I have a web site off of the Apache
> web
> > server and I have the port 80 used by it.
> 
> So? If you're doing performance testing, you should
> be doing it in a
> laboratory environment. You /are/ doing this on a
> test server, not
> product, right?
> 
> You should be able to disable one of your servers
> for testing.
> 
> Other factors include the resolution of the timer
> being used by Apache
> and/or mod_jk for emitting log messages. Most people
> don't care about
> high-resolution timing for things like web server
> logs, so I wouldn't
> expect Apache to be using one.
> 
> Another option would be to write a trivial servlet
> that always does
> nothing and returns nothing, and then time your
> requests through that.
> You should be able to tell what communication
> overhead is being added by
> Apache httpd and mod_jk.
> 
> - -chris
> 
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>
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