⚗ [RUM-7213] DOM mutation ignoring

[jordan-th]

Motivation

Ability to exclude certain DOM mutations from affecting the page loading time calculation

Changes

• attributes mutations are ignored if the element has the attribute dd-ignore-mutations
• childList and characterData mutations are ignored if the parent element has the attribute dd-ignore-mutations

Testing

• Local
• Staging
• Unit
• End to end

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I have gone over the contributing documentation.

[bits-bot]

All committers have signed the CLA.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.79%. Comparing base (0de2a8e) to head (08ecd5b).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3276      +/-   ##
==========================================
+ Coverage   92.75%   92.79%   +0.03%     
==========================================
  Files         299      299              
  Lines        7855     7870      +15     
  Branches     1793     1799       +6     
==========================================
+ Hits         7286     7303      +17     
+ Misses        569      567       -2     

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[jordan-th]

This parameter allows us to test the case where the experimental feature is enabled and the IGNORE_MUTATIONS_ATTRIBUTE is not present.

If you think it would be useful, I am also open to adding tests for the case where the experimental feature is not enabled and the IGNORE_MUTATIONS_ATTRIBUTE is present

[cit-pr-commenter]

Bundles Sizes Evolution

📦 Bundle Name	Base Size	Local Size	𝚫	𝚫%	Status
Rum	148.10 KiB	148.48 KiB	386 B	+0.25%	✅
Logs	52.26 KiB	52.30 KiB	48 B	+0.09%	✅
Rum Slim	106.77 KiB	107.13 KiB	373 B	+0.34%	✅
Worker	24.50 KiB	24.50 KiB	0 B	0.00%	✅

🚀 CPU Performance

Action Name	Base Average Cpu Time (ms)	Local Average Cpu Time (ms)	𝚫
addglobalcontext	0.002	0.002	0.000
addaction	0.051	0.042	-0.009
addtiming	0.001	0.001	-0.000
adderror	0.109	0.065	-0.044
startstopsessionreplayrecording	0.013	0.012	-0.000
startview	0.517	0.445	-0.072
logmessage	0.040	0.023	-0.017

🧠 Memory Performance

Action Name	Base Consumption Memory (bytes)	Local Consumption Memory (bytes)	𝚫 (bytes)
addglobalcontext	28.37 KiB	29.30 KiB	947 B
addaction	54.15 KiB	56.09 KiB	1.93 KiB
addtiming	27.77 KiB	27.91 KiB	139 B
adderror	60.10 KiB	61.73 KiB	1.63 KiB
startstopsessionreplayrecording	26.75 KiB	25.74 KiB	-1029 B
startview	423.95 KiB	424.77 KiB	834 B
logmessage	60.08 KiB	62.75 KiB	2.67 KiB

🔗 RealWorld

[jordan-th]

/to-staging

[dd-devflow]

Devflow running: /to-staging

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2025-01-13 18:14:12 UTC ℹ️ Branch Integration: starting soon, median merge time is 0s

Commit 75388df806 will soon be integrated into staging-03.

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2025-01-13 18:25:08 UTC ℹ️ Branch Integration: This commit was successfully integrated

Commit 75388df806 has been merged into staging-03 in merge commit 07047d13b3.

Check out the triggered pipeline on Gitlab 🦊