How to calculate memory requirement for Vusers
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Memory requirement also called as Memory footprint for a Vuser can be called as a function that is dependant on Vuser type (Web, CITRIX, SAP GUI); application and system where you
intend to run the test.
So if your Web/HTTP Vuser takes 5MB when running as a process, 50 Vusers would take 250 MB. Then remote desktop connection , third party program (that is continuously running in background) , memory consumed by application all summed will give you the memory requirement for a test.
You can calculate it empirically. Do it for say 10 Vusers and than extrapolate that requirement for x no of Vusers.
Comments
6 Comments on How to calculate memory requirement for Vusers
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Rajiv on
Mon, 20th Apr 2009 10:03 pm
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Ankur on
Mon, 20th Apr 2009 11:10 pm
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Rajiv on
Tue, 21st Apr 2009 8:25 pm
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Ramkumar on
Fri, 12th Jun 2009 4:06 pm
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sudheer on
Tue, 8th Dec 2009 4:34 pm
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suresh on
Fri, 8th Jan 2010 9:28 pm
Hello,
You have given an assumption that if a Web Vuser takes 5MB,My question here is:
Is there any way to know how much amount of memory a single web HTTP Vuser actually captures??
.Where can we see??
Waiting for your response!!
Thanks,
Rajiv
@Rajiv: Run a scenario on your remote load generator machine.
Set up a Windows monitor to measure the memory consumption. Ramp up the Vusers slowly and closely monitor the memory resources, you will get an idea.
Thanks Ankur!!
Hi,
Once vusers running as a thread,How much memory will allocate 1 vusers taken ?
Please reply
Cheers
Ramkumar
ramkumar,
It is based on the OS… and it will allocated from total RAM size…. it will vary from protocol to protocol.
Refer HP Loadrunner Footprint document for more details. refer following link … u will get/(download file) more info…
http://www.vietnamesetestingboard.org/zbxe/?mid=download&document_srl=140008&cpage=&listStyle=
regards,
sudheer
how to identify bottlenecks in hits per sec and vusers and throughput graphs give ex and picutes and also give examples for web_custom_request,lr_eval_string,lr_save_string functions
Tell me what you're thinking...
and oh, if you want a pic to show with your comment, go get a gravatar!
