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From cmanola...@yahoo.com
Subject RE: cvs commit: jakarta-tomcat/src/doc perfNumbers.txt
Date Sun, 03 Dec 2000 00:02:54 GMT
> Where can I get the tool to test my tomcat.
> I know where to find Hello and helloW (Tomcat source ??), but I'm wondering
> where I can get the tool you have used below to get this nice summary. 
> Wouldn't it be nicer if that tool was included with Tomcat distribution
> (inc. hello/hellow)??

The tool is "ab", included with any Apache distribution ( including
Windows). Hello and HelloW are included with TC 3.3 - in
src/examples/WEB-INF/classes.

I'll add few more simple servlets to test other aspects of a servlet
container  ( session processing, parameters, request dispatching ).


> I want to run the test on some strong machine around (with several
> processors) and see where this can take us.

I would be very curious to hear some numbers. I'll try to reorganize the
file, so we can include data for other platforms ( I wanted to check the
evolution of tomcat on my machine ) 

> Last que: What is (in the results below): RPS, MAX, AVG, Concurrent, test
> and warm.

Sorry about that, there are just raw data without too much info. 

>   Warm: 1000  -> run 1000 requests before the test ( to make sure
everything is in memory )

>   Test: 10000 -> the test consist of 10000 requests
 
>   Concurent: 1 20 40 80 -> I tried with 1, 20, 40, 80

"concurent" connections ( ab -c xx ) ( and up to 340 for tomcat 3.3, 3.2
can go that far on my machine )

>   RPS AVG MAX

>   20: 134 150 701
    ^ 20 concurent connections
        ^ Equivalent requests per second, as reported by "ab" ( by
dividing the number of requests by total time )
             ^ Average response time for a request
                 ^ Maximum response time for a request 

Costin


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