How to schedule observable timer on LOWER priority thread

[mwpowellhtx]

Hello, not sure I asked along these lines, did not find it otherwise in the discussions...

I need to be able to watch a timer on a thread priority LOWER than that of the UI. I have some timer events pinging upstream API for data sources, and those are working as they should. At their critical junctures with the UI, we rejoin the UI thread in order to sync up, with WPF EH, view models, view bindings, etc. It's "working" ... to a point.

We've got code along these lines. Do not mind NodaObservable, I have some NodaTime constructs making the appropriate conversions from NodaTime.Duration and so forth to the Observable.Timer time units (seconds, I think). The important part is NewThreadScheduler.Default, which we do want, should perpetually run as long as the application wants the service.

var observable = NodaObservable.Timer(dueTime, period, NewThreadScheduler.Default);
//                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
TimerObserver = observable.Subscribe(OnManagerTimer);

However, the thread seems to be normal priority, and is interfering with normal, casual UI engagement. So we REALLY REALLY REALLY need to schedule that thread at a lower priority than that of the UI thread.

We broached the topic somewhat tangentially over virtual timer base class constructs, but I am still not clear how may we configure the default IScheduler in such a way. Or it is something that could be promoted to proper issue and addressed.

Or perhaps there is a different scheduler we may use that would mesh better with WPF (or any) UI threads.

Thanks!

[mwpowellhtx]

Looking at the available schedulers, perhaps it is new EventLoopScheduler(...) that we are interested in, and factory provide a lower priority thread? "Question mark"? i.e. my interest is piqued.