Re: Tomcat Performance Question

2008-01-26 Thread mgainty
ubject: Re: Tomcat Performance Question > Ali Ok wrote: > > Thanks David, > > > > I mean, if I make 3 requests in a very short time (about 10 seconds); > > Tomcat does not respond. > > I read books, tutorials, faqs and threads at maling list about Tomcat > >

Re: Tomcat Performance Question

2008-01-26 Thread David Kerber
Ali Ok wrote: Thanks David, I mean, if I make 3 requests in a very short time (about 10 seconds); Tomcat does not respond. I read books, tutorials, faqs and threads at maling list about Tomcat tuning. But I couldnt find an example server.xml file used in production or real test results. So

Re: Tomcat Performance Question

2008-01-26 Thread Peter Lin
have you tried monitoring the CPU and IO usage of the system during the test? In the past, when I stress test an application, I monitor the cpu and io, to determine which part is getting maxed out first. For example, if I was serving up static pages, the first thing to mak out is the IO, so even t

RE: Tomcat Performance Question

2008-01-26 Thread Caldarale, Charles R
> From: Ali Ok [mailto:[EMAIL PROTECTED] > Subject: Re: Tomcat Performance Question > > What if someone make so much requests and confuse the server? > Does Tomcat have an prevention for this situation? You can configure the maximum number of requests a will handle concurrently,

Re: Tomcat Performance Question

2008-01-26 Thread Ali Ok
Peter, thats ok, maybe some day we can get that much hit :) What if someone make so much requests and confuse the server? Does Tomcat have an prevention for this situation? Or is it beyond the scope? David, I have already read all of resources you sent. Invariably performance issues are rarely a

Re: Tomcat Performance Question

2008-01-26 Thread David Brown
Hello Ali, there are no absolute benchmarks for what you are looking for. The central theme to any performance questions invariably lead to the word (Architecture). You need to evaluate you overall architecture from a high level perspective. With this said the questions then are: * What is your

Re: Tomcat Performance Question

2008-01-26 Thread Peter Lin
30,000 requests in 10 seconds probably isn't normal traffic, but it could represent a sudden spike. think of it another way, that's 3,000 requests per second. If we calculate that for a 10 hour period, it puts things in perspective 1000 req/sec * 60 sec/min = 60,000 req/min 60,000 req/min * 60 mi

Re: Tomcat Performance Question

2008-01-26 Thread Ali Ok
Thanks David, I mean, if I make 3 requests in a very short time (about 10 seconds); Tomcat does not respond. I read books, tutorials, faqs and threads at maling list about Tomcat tuning. But I couldnt find an example server.xml file used in production or real test results. So I cant understan

Re: Tomcat Performance Question

2008-01-26 Thread David Brown
Hello Ali, please find included below a link URL that addresses the JSF performance issue. A much more rigorous test would be to use the JMeter distributed testing using the JMeter server. HTH, David. Ali Ok wrote .. > Hi, > > We are building a web application with JSF. Last day I tested it wit