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From Stuart Barlow <Stuart.Bar...@hummingbird.com>
Subject RE: Jmeter becomes unresponsive
Date Mon, 09 Dec 2002 14:23:40 GMT
Why do you say move to 1.4?

At 14:24 14/11/02 +0000, Phil Cornelius wrote:

>Yes..
>Make sure you run the jmeter gui on yet another separate machine purely
>for collecting together the data.
>
>Another tip is to use j2se 1.4.x on each machine.
>
>Yours
>Phil
>
>
>On Thu, 2002-11-14 at 14:02, Vola, Guillaume wrote:
>> Tx for the answer.
>> In my understanding you run each different thread group
>> on a different machine on which you have started a jmeter-server.
>> The list of the machine that simulates a client is contained
>> in a properties file (remote_hosts).
>> The number of threads depends on the CPU of the client machine.
>> Is it correct ?
>>
>>
>> My JMeter client is running on Solaris:
>> Sun Enterprise 220R (2 X UltraSPARC-II 450MHz)
>>
>> B.T.W. On Windows I get the following traces:
>>
>> DEBUG   10372   [jmeter.g] (): Start : GraphAccumModel1
>> DEBUG   10372   [jmeter.g] (): End : GraphAccumModel1
>> DEBUG   10372   [jmeter.g] (): Start : init1
>> DEBUG   10372   [jmeter.g] (): Start : GraphAnnum1
>> DEBUG   10372   [jmeter.g] (): End : GraphAnnum1
>> DEBUG   10372   [jmeter.g] (): Start : GraphAnnum2
>> DEBUG   10372   [jmeter.g] (): Start : setModel1
>> DEBUG   10372   [jmeter.g] (): End : setModel1
>> DEBUG   10372   [jmeter.g] (): End : GraphAnnum2
>> DEBUG   10372   [jmeter.g] (): toString1 : Returning - Show the samples 
>analysys as dot plots
>> DEBUG   10372   [jmeter.g] (): setVisualizer1 : Setting visualizer - Show 
>the samples analysys as dot plots
>> DEBUG   10372   [jmeter.g] (): End : init1
>> DEBUG   10372   [jmeter.g] (): Start : GraphAccumVisualizer1
>> DEBUG   10372   [jmeter.g] (): End : GraphAccumVisualizer1
>> DEBUG   10372   [jmeter.g] (): Start : ViewResultsFullVisualizer1
>> DEBUG   10372   [jmeter.g] (): End : ViewResultsFullVisualizer1
>>
>> -----Original Message-----
>> From: Phil Cornelius [mailto:philc@computer.org]
>> Sent: Thursday, November 14, 2002 10:59 AM
>> To: JMeter Users List
>> Subject: Re: Jmeter becomes unresponsive
>>
>>
>> I was getting this problem.. and various other performance problems i.e.
>> results trickling back..
>>
>> It is simply because the client machine is maxed out on CPU.. I have
>> since distributed my test across a number of machines with great
>> success..
>>
>> http://jakarta.apache.org/jmeter/usermanual/remote-test.html
>>
>> In my situation I can run about 300 threads on each client machine
>> (cheap Celeron 1300s)..
>>
>> If you are windows you can use perfmon to see how the cpu is doing on
>> each machine and adjust your load.
>>
>> Yours
>> Phil
>>
>>
>> On Thu, 2002-11-14 at 09:09, Vola, Guillaume wrote:
>> > Hi there,
>> >
>> > During my perf tests I encountered some issues with JMeter 
>(V1.8/jdk1.4).
>> > As Listener I have only one Agregate Report with NO output file.
>> > Sometimes during long time test JMeter becomes unresponsive (grey 
>screen).
>> > That happended after a while with the following scenario:
>> > #threads=360
>> > Ramp-up=3600
>> > Loop=10
>> > Jmeter should have launched 3600 requests to my server but it has been 
>stopped after ~2000.
>> > No OutOfMemory in the Jmeter console !!! (JMeter launched with the 
>option -Xmx512m)
>> >
>> > Is someone has an idea to resolve this issue I would really appreciate 
>it.
>> > I attached my test plan to this message.
>> > Best regards.
>> > Guillaume
>> >
>> > -----Original Message-----
>> > From: Mike Stover [mailto:mstover1@apache.org]
>> > Sent: Wednesday, October 16, 2002 7:02 PM
>> > To: JMeter Users List
>> > Subject: RE: OutOfMemoryError during test perf
>> >
>> >
>> > On 16 Oct 2002 at 17:03, Vola, Guillaume wrote:
>> >
>> > > Michal,
>> > >
>> > > Thanks for your answer. I start to see clearer
>> > > but I still have some questions.
>> > >
>> > > > Should I use non-GUI mode for high load testing ?
>> > > Hmmm... is there a possibility to use non-GUI mode for remoted 
>testing? I was
>> > > always using it that way: several servers (jmeter -s) of course 
>without gui
>> > > and one control console with GUI where you can order servers to 
>run... How
>> > > can you run test on servers without GUI?
>> > > When not using remote testing I always use non-GUI mode for load 
>testing.
>> >
>> > JMeter can't currently control remoted JMeter instances in non-GUI 
>mode.
>> >
>> > >
>> > > Q1: I use remote testing because my server is hosted by a different 
>machine
>> > > than my desktop. I think I will schedule a non-GUI test for that 
>night.
>> > > In this case how do you analyze/visualize the sample results file 
>[.jtl] ?
>> >
>> > You can open results files in any visualizer.  The visualizer will show 
>the data in its
>> > own way.
>> >
>> > >
>> > > Q2: When you have a scenario with cascaded HTTP request,
>> > > how do you measure the response time for the whole scenario,
>> > > and not only for every sample. In my understanding one HTTP request
>> > > corresponds to one sample (the average time is calculated
>> > > for all samples).
>> >
>> > There is no "transaction timer", but you could use the Aggregate 
>Visualizer which
>> > would give you average and throughput times for each sample, from which 
>you
>> > could easily add three together to find the average transaction time 
>for those three.
>> > Same with throughput.
>> >
>> > -Mike
>> >
>> > >
>> > > Best regards,
>> > > -Gui
>> > >
>> >
>> >
>> >
>> > --
>> > Michael Stover
>> > mstover1@apache.org
>> > Yahoo IM: mstover_ya
>> > ICQ: 152975688
>> >
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>
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Stuart Barlow
Tel: +44 131 468 8205
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