[APMMeasurement didInitializeComponments] main thread hangs

[linziyiwj]

Description

Sdk version：
Firebase 9.5.0
Google-Mobile-Ads-SDK 9.8.0
GoogleAppMeasurement: Firebase/GoogleAppMeasurement

We find the problems in hangs of Xcode 14.0 organizer, it hangs the main thread for a long time.

Reproducing the issue

No response

Firebase SDK Version

9.5.0

Xcode Version

13.4

Installation Method

CocoaPods

Firebase Product(s)

AB Testing, Analytics, Crashlytics, In-App Messaging, Performance, Remote Config

Targeted Platforms

iOS

Relevant Log Output

No response

If using Swift Package Manager, the project's Package.resolved

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If using CocoaPods, the project's Podfile.lock

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[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[rizafran]

Thanks for reaching out, @linziyiwj. Could you provide the detailed steps in reproducing the issue as well as the complete stack trace?

[morganchen12]

Looks like the lock is necessary for this initialization logic, but we could potentially speed it up by using os_unfair_lock.

[linziyiwj]

Thanks for reaching out, @linziyiwj. Could you provide the detailed steps in reproducing the issue as well as the complete stack trace?

@rizafran Unfortunately I have not been able to reproduce this block yet.
It is only reported in Xcode hangs. And only the above stack information

[linziyiwj]

Looks like the lock is necessary for this initialization logic, but we could potentially speed it up by using os_unfair_lock.

@morganchen12 Sorry, I don't quite understand it. Can you explain it in detail. Thank you very much!!!

[paulb777]

@linziyiwj I believe @morganchen12 was talking about a possible change in our internal implementation.

[linziyiwj]

@linziyiwj I believe @morganchen12 was talking about a possible change in our internal implementation.

@paulb777 Please ask when will the version be updated to deal with this problem，Hope to have a solution as soon as possible

[paulb777]

cc: @htcgh