Do nested Concurrent work in parallel?

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Posted on by SaWu

635

Hello,

Please be so kind as to read my full post before responding.

Thank you for your consideration.

I am currently facing the problem that my complex PowerApp (easily 500+ controls, and long App.OnStart) loads too slowly.
I am considering restructuring my App.OnStart with (nested) Concurrent.

I don't find anything on using this funtion in a nested way in the documentation
https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/functions/function-concurrent

In particular, I want to now if my nested Concurrent in something like this

Concurrent(
 General_Stuff(),

 …,

 If(Connection.Connected, Concurrent(
 Stuff_which_requires_network_access(),
 ...
 ), Concurrent(
 Stuff_to_do_when_offline_instead(),
 …
 )
)

will also work in parallel.

Will this work as I want?
That is: the things inside the If(Connection.Connected, Concurrent( things )) also run in parallel.
Or is there some rule/implementation in place that, say, only makes the top/bottom level Concurrent parallel?

If you answer me, can also please accompany this with documentation or timing, or the word of an actual developer?

Thank you,
Sa Wu.

Categories:

Building Power Apps

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v-xida-msft Microsoft Employee on at

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Hi @SaWu ,

Could you please share a bit more about your scenario?

Do you want to execute a nested Concurrent formula within your app?

If you want to execute a nested Concurrent formula within your app, I think PowerApps could achieve your needs. I have made a test on my side, the screenshot as below:

For your first question, based on the fomrula you provided, I think it would work within your app.

For your second question, for each Concurrent function, each argument formula within the Concurrent function would be executed at the same time.

For your formula, the General_Stuff(), ..., and If(Connection.Connected, ...) fomula would be executed at the same time. When executing the If(...) formula, the each argument formula within the nested Concurrent function would also be executed at the same time.

In addition, you can quickly measure your formula’s performance by turning on Developer Tools in Microsoft Edge or Google Chrome while running the app. The screenshot as below:

Please take a try with above solution, then check if the issue is solved.

Best regards,

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Community Power Pla... Microsoft Employee on at

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Hi @SaWu how are you progressing with this? Was the above reply helpful?

@Anonymous

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SaWu 635 on at

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Hello,

Thanks for the replies, the above answer has been helpful, but I don't know yet if it's a complete solution to my question.
I was aware that nested Concurrent worked in the sense that the code inside would run properly.
What I wasn't and am not sure about, is whether code inside nested Concurrent would really run in parallel and give a performance benefit compared to sequential statements.
I still haven't finished testing and checking the latter question with the tools of above reply yet.
I would like some graphs, screenshots, data, developer pointing out implementation, ...

Thanks,
Sa.

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