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Wisdom on how to build a "stressful simulation test" with Selenium & POEby sundialsvc4 (Abbot) |
on Jul 15, 2011 at 15:56 UTC ( [id://914638]=perlquestion: print w/replies, xml ) | Need Help?? |
sundialsvc4 has asked for the wisdom of the Perl Monks concerning the following question: What I want to do is to construct, with Selenium, what I will call a “stressful scenario” test. There will be, worst case, about 4,000 actors, each one pretending to be a student who is taking an online exam, all at the same time. I have in mind to model this scenario with, say, “n” processes (on different computers), each of whom is running a Perl program that is maintaining, say, “4,000 / n” simultaneous Test::WWW::Selenium test sessions (and their associated web-browser processes, etc.). Each “student,” according to various pseudo-random rules, “stops to think” for a random period of time, then “does something.” Each student-simulator keeps track of whether or not they have finished the test. (Some will not, but the test drops-dead after one hour. We all remember that, now don’t we? ...) So far, so good? Well, it seems to me that a very good way to do that is with POE, because actors do spend most of their time “thinking,” and so the processing can be effectively and efficiently simulated using a timer-queue like the one that POE provides. (Each actor is basically an individual finite-state machine.) Bearing in mind the rule, do not do a thing already done, I’m starting my investigation now to try to find whatever existing modules might be close to, if not exactly, what I am looking for. Suggestions and pointers are now very cordially requested by this humble penitent.
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