Thanks Mike Stuart for your replies. So its pretty clear that
for the purpose of finding the bottle neck in an application we
need to load the app by Jmeter and use the Profiling tool for
finding the bottleneck.
So I will start loading a Java app with Jmeter. Yes, I can write
Java classes. So, let me know where and what do I have to do to
understand how to write a sampler and samplercontroller. How does
Jmeter help me in doing so? Can I subclass these from Jmeter and
start writing my code?
Please give me a brief outline and I will start with this. in fact
Mike has already done this JProbe+Jmeter thing. So I will need to
follow the steps. I couldnt get the JProbe licence. I got the OptimizeIt
licence though. So I will be usimg Jmeter+OptimizeIt.
Thanks again and keep writing,
Soumya(Som)
-Original Message-
From: Mike Stover [mailto:[EMAIL PROTECTED]]
Sent: Friday, June 15, 2001 9:51 AM
To: [EMAIL PROTECTED]
Subject: Re: Hi All, What to do in the beginning
On Friday 15 June 2001 13:42, Stuart Skinner wrote:
Hi souyma
As far as i'm aware JMeter won't do this sort of thing for you. JMeter is
capable of showing how your application will scale under load but it will
give you little indication as to where bottelnecks that prevent scaling
occur. You should look into using a profiling tool such as OptimizeIt or
JProbe (possibly in conjunction with JMeter to load the system whilst
testing).
This is correct. I have used JMeter to load a system while running JProbe
to
find where bottlenecks were. JMeter is perfect for that purpose. However,
JMeter currently only supports http, JDBC, and FTP (and somewhere I have
SMTP
classes lying around that I haven't merged yet).
However, if you can write java, it's not so hard to add your own classes to
do new stuff. You would have to write, at a minimum, a sampler (which does
the actual calling of your java objects), a controller (which would hold
configuration information and create Entry's to be executed by your
sampler), and a GUI for your controller. Most likely, you'd also have to
create some ConfigElement classes for greater flexibility.
It's not as hard as it sounds once you understand what a SamplerController
does, and what a Sampler does. Is this something you want to tackle? If
so,
I'm willing to help.
-Mike
Stu
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Friday, June 15, 2001 2:32 PM
To: [EMAIL PROTECTED]
Subject: RE: Hi All, What to do in the beginning
How you all doing? I have pinpointed my requirements for now with Jmeter.
I
gotto test Java applications(lets for now say its not an web app). For
example suppose a Java app is having n number of objects. How, by using
Jmeter I can understand which object is creating the bottleneck in the
entire app?
If somebody is giving me a testscript, pls. briefly explain how to connect
that with Jmeter and run. As I told earlier I am not very good in J2EE
technologies.I dont know XML. I will learn the relevant parts for testing
Jmeter.
Thanks and looking forward to hear.
Soumya Bhattacharyya
-Original Message-
From: Mike Stover [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 12, 2001 2:51 PM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re: Hi All, What to do in the beginning
On Tuesday 12 June 2001 14:33, [EMAIL PROTECTED] wrote:
Hi All,
I have been assigned to learn and use Jmeter for my corporation.
Ultimate
requirement is to test JMS framework as is the web services framework. I
am
basically a TOOL developer who knows Java but is not very thourough in
J2EE
stuff(just learning).
I have gone thru the info that was available on the net about Jmeter.
Its
theoritically fine, but I think I need more info to start taking the
first steps. For eg. I would like to do the following first :
1. Test a database
Ok, JMeter supports JDBC, but it's currently broken. I haven't looked
into
the problem as I have no use for such database testing, but I would be
glad
to point you in the right direction. Here, for example is a testscript
that
demostrates how you would setup jmeter to test a database (you'll have to
sub
in appropriate values - but load it first and change the values in
JMeter):
?xml version=1.0?
TestPlan
threadgroups
ThreadGroup name=ThreadGroup numThreads=1
controllers
JdbcTestSample
type=org.apache.jmeter.protocol.jdbc.control.JdbcTestSample
name=Database Testing
defaultDb
ConfigElement type=org.apache.jmeter.protocol.jdbc.config.DbConfig
property name=passwordroot/property
property name=url192.168.1.1/property
property name=sub_protocolmysql/property
property name=driverorg.gjt.mm.mysql.Driver/property
property name=usernameroot/property
/ConfigElement/defaultDb
defaultPool
ConfigElement type=org.apache.jmeter.protocol.jdbc.config.PoolConfig
property name=use1000/property
property name=num_connections10/property
/ConfigElement
