⚡️ [RUM-6929] delay resource collection

[BenoitZugmeyer]

Motivation

We observed that on some condition, processing resources can block the main thread for a significant amount of time.

Changes

This PR mitigate the issue by processing each resource in a "task queue". Tasks are scheduled to be run in "idle tasks" via requestIdleCallback. This will break down those big blocking tasks into smaller tasks with lower priority.

Testing

• Local
• Staging
• Unit
• End to end

---

I have gone over the contributing documentation.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 98.61111% with 1 line in your changes missing coverage. Please review.

Project coverage is 93.70%. Comparing base (c951eec) to head (cf5ca40).

Files with missing lines	Patch %	Lines
...kages/core/test/emulate/mockRequestIdleCallback.ts	96.87%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3102      +/-   ##
==========================================
+ Coverage   93.65%   93.70%   +0.04%     
==========================================
  Files         276      279       +3     
  Lines        7615     7672      +57     
  Branches     1708     1713       +5     
==========================================
+ Hits         7132     7189      +57     
  Misses        483      483              

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[cit-pr-commenter]

Bundles Sizes Evolution

📦 Bundle Name	Base Size	Local Size	𝚫	𝚫%	Status
Rum	161.01 KiB	161.46 KiB	462 B	+0.28%	✅
Logs	55.75 KiB	55.75 KiB	0 B	0.00%	✅
Rum Slim	109.59 KiB	110.30 KiB	731 B	+0.65%	✅
Worker	25.21 KiB	25.21 KiB	0 B	0.00%	✅

🚀 CPU Performance

Action Name	Base Average Cpu Time (ms)	Local Average Cpu Time (ms)	𝚫
addglobalcontext	0.002	0.001	-0.001
addaction	0.050	0.031	-0.019
addtiming	0.001	0.001	-0.000
adderror	0.059	0.032	-0.027
startstopsessionreplayrecording	1.604	0.978	-0.626
startview	1.571	0.976	-0.595
logmessage	0.034	0.020	-0.015

🧠 Memory Performance

Action Name	Base Consumption Memory (bytes)	Local Consumption Memory (bytes)	𝚫 (bytes)
addglobalcontext	8.24 KiB	8.76 KiB	535 B
addaction	38.18 KiB	40.23 KiB	2.05 KiB
addtiming	7.27 KiB	8.35 KiB	1.08 KiB
adderror	42.95 KiB	45.71 KiB	2.76 KiB
startstopsessionreplayrecording	6.68 KiB	6.38 KiB	-303 B
startview	424.42 KiB	433.33 KiB	8.91 KiB
logmessage	39.70 KiB	43.40 KiB	3.70 KiB

🔗 RealWorld

[BenoitZugmeyer]

/to-staging

[dd-devflow]

🚂 Branch Integration: starting soon, median merge time is 0s

Commit 4bbad82b2d will soon be integrated into staging-44.

Use /to-staging -c to cancel this operation!

[dd-devflow]

🚂 Branch Integration: This commit was successfully integrated

Commit 4bbad82b2d has been merged into staging-44 in merge commit 8ce8f387df.

Check out the triggered pipeline on Gitlab 🦊