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From Vladimir Sitnikov <sitnikov.vladi...@gmail.com>
Subject Re: Throughput timer that generates Poisson process
Date Wed, 21 Sep 2016 12:25:09 GMT
Antonio>What do you mean by ""Bursty load" simulation. There is no easy way
to test
Antonio>"50 iterations per hour as 10 bursts of 5 items"?

There are two cases there:
1) The main problem is how would you create a load when two actions are
very close "by pure chance"?
For instance, current CTT will eventually create very even distribution
with all pauses equal (assuming
the response times are stable).
By default, if you launch "360 per hour", you might expect "one sample
every 10 seconds": 0, 10, 20, 30, ...

That would miss cases when "two samples took place at very similar point in
time" like 0, 11, 12, 30, ..

"Poission process" models that appropriately. Even though it creates
"constant throughput", the particular
arrival times are random, so multiple events can appear close to each other.

2) "Always start 5 samples at once". Something like that can be achieved by
current "synchronizing timer",
however there are cases when you need to "test rare cases that always come
in pairs"

Vladimir

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