designcourse ♻️ [RUM-6278] Use performance observer for layout shift entries

Motivation

Following the introduction of performanceObservable to move away from performanceCollection: PR Let use performanceObservable for layout shift and event entries.

Changes

Remove performanceCollection
Use perfomanceObservable in trackCumulativeLayoutShift

Testing

[x] Local
[x] Staging
[x] Unit
[ ] End to end

I have gone over the contributing documentation.

Sep 20 '24 12:09 amortemousque

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 93.21%. Comparing base (365ee74) to head (6f59fd1). Report is 638 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3028      +/-   ##
==========================================
- Coverage   93.37%   93.21%   -0.17%     
==========================================
  Files         276      275       -1     
  Lines        7649     7616      -33     
  Branches     1717     1712       -5     
==========================================
- Hits         7142     7099      -43     
- Misses        507      517      +10

Flag	Coverage Δ
	`93.21% <100.00%> (?)`

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Sep 20 '24 14:09 codecov-commenter

Bundles Sizes Evolution

📦 Bundle Name	Local Size	𝚫	𝚫%	Status
Rum	161.09 KiB	161.09 KiB	N/A%	✅
Logs	56.03 KiB	56.03 KiB	N/A%	✅
Rum Slim	109.66 KiB	109.66 KiB	N/A%	✅
Worker	25.21 KiB	25.21 KiB	N/A%	✅

🚀 CPU Performance

Action Name	Base Average Cpu Time (ms)	Local Average Cpu Time (ms)	𝚫
addglobalcontext	N/A	0.003	0.003
addaction	N/A	0.069	0.069
addtiming	N/A	0.001	0.001
adderror	N/A	0.072	0.072
startstopsessionreplayrecording	N/A	2.550	2.550
startview	N/A	2.587	2.587
logmessage	N/A	0.040	0.040

🧠 Memory Performance

Action Name	Base Consumption Memory (bytes)	Local Consumption Memory (bytes)	𝚫 (bytes)
addglobalcontext	NaN KiB	9.05 KiB	NaN KiB
addaction	NaN KiB	39.88 KiB	NaN KiB
addtiming	NaN KiB	6.66 KiB	NaN KiB
adderror	NaN KiB	45.38 KiB	NaN KiB
startstopsessionreplayrecording	NaN KiB	4.68 KiB	NaN KiB
startview	NaN KiB	425.96 KiB	NaN KiB
logmessage	NaN KiB	39.19 KiB	NaN KiB