SwiftUI serious hangs

[DwayneCoussement]

Platform + Version
iOS 17

SDK Version
3.2.0

Framework
Native, SwiftUI

Describe the bug
Have a bit of a more complex SwiftUI view, notice that the Pendo SDK is slowing down the whole application (serious hangs if you attach it to the Time profiler)

To Reproduce
Not sure what's the easiest way to reproduce, but having Pendo active and a bit of a more complex view (a gridview) that does some updates makes Pendo using a lot of time

Expected behavior
The performance is the same with the Pendo SDK, as it is without it, no serious hangs.

Additional context

[MikePendo]

@DwayneCoussement
Yes we are aware of it and fixing it now hopefully will release HF by end of the week

[0xkuj]

@DwayneCoussement HF version 3.2.1 was released. please install and reopen this ticket if needed!

[0xkuj]

in addition to that is will be highly recommended to change the integration with an addition flag as below:

let options = PendoOptions()
options.configs = ["enableTextCollectionSwiftUI":false]
PendoManager.shared().setup(prodAppKey,with: options)

this flag is meant to reduce the texts collection via reflection and base text collection on accessibility elements only.

this was done in our latest 3.2.1 HF fix, please try upgrading and let us know with your results.

[DwayneCoussement]

While it seriously improved a lot, it's still too slow, my UI still has hangs that are not there when I remove Pendo. I applied the options mentioned above; but I do hope that more improvements are coming. What I know see is that PDNHookFunctions is the cause, and not PDNScreenManager anymore.

[MikePendo]

@DwayneCoussement
PDNHookFunctions its only a hook and doesnt (didnt) has any heavy processing. It forward the call to its flow after dispatching analytics in another thread.
Can you please expand the trace of PDNHookFunctions and see who is responsible for the heavy weight?

[MikePendo]

In general our main concern (at least the one we noticed was during page change). and that what we attempt to resolve ( the PDNScreenManager). The Hook never caused a performance issue for us. BUT please share your findings and we will try to see what's going on

[DwayneCoussement]

It seems to be hanging here; this is on a SwiftUI grid view with quite a lot of items. Each item has an image that will check from cache, and if it's not in the cache get it from the network and put it in the cache. Disabling Pendo = no UI hangs, Enabling Pendo = UI hangs. This also gets triggered during scrolling of the page.

[MikePendo]

@DwayneCoussement
Can you please expand the call u shared? we need to see what is causing the hang.
The image is only a stack of the calls.
(the part u shared is just a swizzle of click Pendo shouldn't really do any heavy job on in that function, we need to see what is get called after that function)

[MikePendo]

or if your app is available on App Store we can check it on our own. (we might need creds if we dont have an option to login, and access to that specific ui content)

[Szpyrol]

It seems to be hanging here; this is on a SwiftUI grid view with quite a lot of items. Each item has an image that will check from cache, and if it's not in the cache get it from the network and put it in the cache. Disabling Pendo = no UI hangs, Enabling Pendo = UI hangs. This also gets triggered during scrolling of the page.

We struggle with just the same problem now. For some reason Pendo crashes when it tries to access CGPoint with a negative value - during orientation change most probably. @MikePendo - was it raised since May maybe?

[MikePendo]

@Szpyrol
it might hang somewhere inside that method the method itself doesnt really cause it. (definitely should not crash)

1. Any chance we can reproduce it on our side would it be able for you to add as test flight user so we will be able to work on it on our side, if you app is available on App Store we can use it also?
2. any chance you can apply the following (to avoid some scanning properties):

let options = PendoOptions()
options.configs = ["enableTextCollectionSwiftUI":false]
PendoManager.shared().setup(prodAppKey,with: options)

#142