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> But we could make this a bit less likely by running the periodic tasks
> in parallel instead of serially, in which case it would require a
> single tasks's duration to exceed the periodic interval before we'd
> have an issue (and then only this individual task would execute late
> on the next iteration, assuming we'd never want individual task runs
> to overlap).

Good point. And this can be achieved through arbitrary pollster interval patch, which will add the periodic task as separated timer one by one.

Thanks
--jyh

> 
> Cheers,
> Eoghan
> 
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