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Posted to user@jmeter.apache.org by Durgs <du...@gmail.com> on 2006/05/09 11:22:33 UTC

Crash the system

Hi,
Im relatively new to Jmeter. Im testing a browser based application.
I tested it for 10 threads. its working fine.
i want to test waht is the max load it can take.
pls advise, how to test when is the system going to crash?
how can i do these things in jmeter, pls advice
how many threads i need to create>?


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Re: Crash the system

Posted by Durgs <du...@gmail.com>.
Robert Heinerman <r.heinerman <at> 3united.com> writes:

> 
> Hi,
> 
> try several hunderd treads, let them loop forever or several hunderd 
> times. After some hours your server will go down. 
> 
> If JMeter runs on Server, deactivate as much as possible of memory 
> consuming not used Items (e.g. Result Trees).
> 
> Durgs schrieb:
> > Hi,
> > Im relatively new to Jmeter. Im testing a browser based application.
> > I tested it for 10 threads. its working fine.
> > i want to test waht is the max load it can take.
> > pls advise, how to test when is the system going to crash?
> > how can i do these things in jmeter, pls advice
> > how many threads i need to create>?
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: jmeter-user-unsubscribe <at> jakarta.apache.org
> > For additional commands, e-mail: jmeter-user-help <at> jakarta.apache.org
> >
> >   
Hi,
I ran the test with 100 users on thread. it worked fine though it took a while.
then i changed the threads to 500. it tooks ages and JMeter window was not being
displayed. i looked into the cmd prompt window and found jemeter values were
running as below
Logging Error: Unknown error writing event.
java.lang.OutOfMemoryError: Java heap space
[Full GC 249087K->249087K(249088K), 0.7305753 secs]
[Full GC 249087K->249086K(249088K), 0.7232545 secs]
Exception in thread "AWT-EventQueue-0" [Full GC 249087K->249087K(249088K), 0.729
8416 secs]
[Full GC 249087K->249087K(249088K), 0.7230073 secs]
[Full GC 249087K->249087K(249088K), 0.7241057 secs]
[Full GC 249087K->249087K(249088K), 0.7269091 secs]
[Full GC 249087K->249087K(249088K), 0.7289963 secs]
[Full GC 249087K->249087K(249088K), 0.7290608 secs]
java.lang.OutOfMemoryError: Java heap space
Logging Error: Unknown error writing event.
[Full GC 249087K->249087K(249088K), 0.7258956 secs]
[Full GC 249087K->249086K(249088K), 0.7182256 secs]
java.lang.OutOfMemoryError: Java heap space
[Full GC 249087K->249087K(249088K), 0.7275386 secs]
[Full GC 249087K->249086K(249088K), 0.7144821 secs]
[Full GC 249087K->249086K(249088K), 0.7282685 secs]
[Full GC 249086K->249086K(249088K), 0.7201667 secs]
Logging Error: Unknown error writing event.
java.lang.OutOfMemoryError: Java heap space
[Full GC 249087K->249086K(249088K), 0.7272069 sec

i donno when will it stop or i need to stop it..pls advice
> 





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Re: Crash the system

Posted by Robert Heinerman <r....@3united.com>.
Hi,

try several hunderd treads, let them loop forever or several hunderd 
times. After some hours your server will go down. ;-)

If JMeter runs on Server, deactivate as much as possible of memory 
consuming not used Items (e.g. Result Trees).

Durgs schrieb:
> Hi,
> Im relatively new to Jmeter. Im testing a browser based application.
> I tested it for 10 threads. its working fine.
> i want to test waht is the max load it can take.
> pls advise, how to test when is the system going to crash?
> how can i do these things in jmeter, pls advice
> how many threads i need to create>?
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
>
>   


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