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crdawson
Helper II
Helper II

Sharepoint Response times too slow

I have an app that makes pretty heavy use of sharepoint lists reading and writing data. For the most part the load times are OK, but there are some functions where I have to make multiple requests to sharepoint in quick succession and even though the amount of data being pulled is tiny, the response times I'm seeing the in the debug tool are very high and it's causing these functions to take a long time to load. I'm seeing response times over 1,000ms for looking up a field in a list. One of the lists is just a list of location choices, so 2 plain text columns with less than 50 entries and it takes 1,067ms to complete the lookup.

 

The user I was monitoring when I got these readings was in our office and had 100mbps download speeds and 13ms ping when I ran a speed test.

 

My question is, are there any premium services available for sharepoint to allow for increased loading speeds similar to premium Power BI workspaces? Or are there any alternatives to sharepoint that would load faster and allow me to transfer the existing data over?

3 REPLIES 3
iAm_ManCat
Most Valuable Professional
Most Valuable Professional

Yes, Dataverse would be faster. You get access to Dataverse when you buy Premium Power Apps licenses.

 

Aside from that, let's look at why its taking so long - Can you share the code you are using that contains the lookup (and the quick succession code) and any context and screenshots around how it is fired off

 

Cheers,

Sancho


@iAm_ManCat
My blog


Please 'Mark as Solution' if someone's post answered your question and always 'Thumbs Up' the posts you like or that helped you!


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You and everyone else in the community make it the awesome and welcoming place it is, keep your questions coming and make sure to 'like' anything that makes you 'Appy
Sancho Harker, MVP


Apologies for the delayed response, I have been off on Holiday then ill.

 

One of the really simple pieces of code that took 1027ms to get a response was this, it's the defaultselecteditems attribute of a combo-box:
If(
_EvaluationMode = FormMode.Edit,
LookUp(
Brands,
Title = _EditRecord.Brand
),
_EvaluationMode = FormMode.New,
LookUp(
Brands,
Title = _UserSettings.Brand
)
)

Looking at these I could probably remove the lookup and just use the variables in the _EditRecord and _UserSettings records, but still just as a demonstration, I don't understand why such a simple lookup is taking so long.

The list being referenced "Brands", has only 2 columns and about 50 items so it's not like it's having to trawl through thousands of entires and pull large amounts of data, it's pulling a single word from a list of 50.

 

The part where it checked a load of lookups in sequence starts like this:
If(
Or(
And(
ProfessionalRadio.Selected.Value = "No",
First(
Filter(
'Attribute Descriptions',
Title = "Professional"
)
).'Compliancy Attribute' = true
),

 

The "ProfessionalRadio" part is one of the 20 Questions asked in the form, so for each of the 20 it runs the same lookup to see if it's a "Compliancy Attribute" and if any of Q's are a no and the question is a compliancy one, it sets a variable called "_Pass" to false.

It then does a similar lookup for each attribute to work out a score based on the wieghtings stored in the sharepoint list.

 

I'll probably pull the list at the start and store it as a collection then just reference that so I'm only contacting sharepoint once instead of 40 times, I just initially had no idea it was taking so long per sharepoint reference. In hindsight, the attributes are not likely to be changed regularly so having it not be live isn't a problem.

iAm_ManCat
Most Valuable Professional
Most Valuable Professional

Yes, if checking what is effectively a static list, I would pull the whole list in at the app start and reference the variable instead, same as you've suggested.

You could also use the Monitor tool to see why the lookup is taking so long (I still recommend using a variable reference, but if you want to investigate further about lookups this is the way), as well as chrome/edge devtools to check what part of network query is taking up that time


@iAm_ManCat
My blog


Please 'Mark as Solution' if someone's post answered your question and always 'Thumbs Up' the posts you like or that helped you!


Thanks!
You and everyone else in the community make it the awesome and welcoming place it is, keep your questions coming and make sure to 'like' anything that makes you 'Appy
Sancho Harker, MVP


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