>I will create Scripts which will hit the site pages proportional to there usage This isnt easy.
>- What should be the configuration of the machine which will simulate these >- If more then one test machine is required please specify there configuration? >- How many instances of jMeter we need to run for simulating 5000 users? My preference is Multiple low end machines running separate JMeter instances to 1 big machine. It simulates the network better . The load you can generate depends on what else is running and what your tests actually do. People have reported running 1000 threads from a single machine. In any case , you must generate a load and check your client machine resources , preferably the cpu shouldn't exceed 60-80% and memory used should all be RAM not virtual. You can increase the number of threads till you hit some limit after which the client machine may become a bottleneck and give you incorrect results. See related http://wiki.apache.org/jakarta-jmeter/HowManyThreads http://jakarta.apache.org/jmeter/usermanual/best-practices.html#lean_mean When running multiple jmeter instances you can either run each instance separately (my preference) or you can run Jmeter in master slave (this is more inefficient , check the mail archives). >How the result file output should be consolidated from various scripts? If >someone is using any tool for consolidating the output files please share >information regarding the same. >- Is there any tool for converting these files to some reports. I have heard >that reports can be generated using some available xslt's in ant. But that >does not work with large output files. So please suggest alternatives. I assume you mean combining the results if you run jmeter instances separately. if you use CSV as your format, just concatenate. Mostly if you have long running tests , you would load the CSV files into a database table. You have some listeners that can read the CSV/JTL files , but you'd have to use a listener whose memory utlization is constant and not proportional to number of samples (e.g. summary report - http://jakarta.apache.org/jmeter/usermanual/component_reference.html section 18.3). regards deepak On Thu, Nov 5, 2009 at 2:54 PM, Harry_ <[email protected]> wrote: > > Hi, > > We need to do performance testing for our website simulating 5000 users > using jmeter and other open source tools. The following information is with > us: > > - A csv file containing links and number of times that link last month. The > file is sorted according to popularity of page visited. > - With this file I can get information about average number of hits per > unit > time say per minute. (estimate can be made regarding max load, min load). I > will create Scripts which will hit the site pages proportional to there > usage. > - All the requests will be http requests. > - Average size of the page will be 350 KB (including embedded objects > within > the page). > > Now we need answer to the following questions: > > - How should performance testing of the site simulating that much user load > using Jmeter should be done? > - What should be the configuration of the machine which will simulate these > many users? (Someone suggested me 8 c...@3 GHz, 16 GB machine). > - If more then one test machine is required please specify there > configuration? > - How many instances of jMeter we need to run for simulating 5000 users? > - How the result file output should be consolidated from various scripts? > If > someone is using any tool for consolidating the output files please share > information regarding the same. > - Is there any tool for converting these files to some reports. I have > heard > that reports can be generated using some available xslt's in ant. But that > does not work with large output files. So please suggest alternatives. > - What other things should i keep in mind for doing the performance test? > > We would appreciate if someone can answer these queries based on there > experience. . > > Thanks, > Harry > -- > View this message in context: > http://old.nabble.com/Performance-Test-Setup-for-a-web-site...-tp26223743p26223743.html > Sent from the JMeter - User mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > >
