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Arjan Mantjes
Guest
Is there anybody who can give me a reliable memory footprint for the Ajax True Client Protocol ?
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A
Arjan Mantjes
Guest
That's not what i asked for Joao...??
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Petar Puskarich
Guest
Well it really depends on your application you are testing and how much memory firefox takes in memory when you use the application plus a little bit extra for the HP interface code. Remember TruClient basically is QTP Light working directly in a browser DOM. So each virtual user is a little bit more weight memory wise as have X full firefox instances open at the same time and not sharing processes. To be honest with our older Xeons (2.8ghz quad core), and 3 Gig memory we are getting about 9 to 10 truclient vusers per machine. We only use it when absolutely necessary. I've heard claims of 100 per machine, but I can't get anywhere close to that AND have reliable transaction response times between tests.
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Arjan Mantjes
Guest
Petar, thanks ! I understand the application dependancy in memory usage. So in front of using ajax true client for a test we need to define some kind of test ourselves to have info on memory usage per virtual user for every different application under test.
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Petar Puskarich
Guest
Yeah, pretty much that's the case. We usually try to no push memory on the injectors >80% and cpu >60% especially in VM's since all sorts of unpredictable results start creeping in. If you have the opportunity to smoke test your scripts/env I would recommend running say 5 vusers for a few mins and gather injector data on how much memory is in use then extrapolate from there. I've found there is no magic solid number so a bit of experimentation is in order.