⚗ [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 93.53%. Comparing base (dfc7ba1) to head (75388df).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3276      +/-   ##
==========================================
- Coverage   93.66%   93.53%   -0.14%     
==========================================
  Files         288      288              
  Lines        7598     7613      +15     
  Branches     1730     1736       +6     
==========================================
+ Hits         7117     7121       +4     
- Misses        481      492      +11     

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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	144.56 KiB	144.94 KiB	386 B	+0.26%	✅
Logs	51.09 KiB	51.13 KiB	48 B	+0.09%	✅
Rum Slim	103.42 KiB	103.79 KiB	373 B	+0.35%	✅
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	0.003	0.001
addaction	0.071	0.082	0.011
addtiming	0.001	0.002	0.001
adderror	0.067	0.126	0.060
startstopsessionreplayrecording	0.011	0.016	0.005
startview	0.573	0.530	-0.043
logmessage	0.038	0.025	-0.012

🧠 Memory Performance

Action Name	Base Consumption Memory (bytes)	Local Consumption Memory (bytes)	𝚫 (bytes)
addglobalcontext	28.38 KiB	27.00 KiB	-1405 B
addaction	55.02 KiB	55.14 KiB	131 B
addtiming	26.34 KiB	26.39 KiB	49 B
adderror	60.44 KiB	62.28 KiB	1.83 KiB
startstopsessionreplayrecording	27.62 KiB	26.47 KiB	-1179 B
startview	413.06 KiB	415.26 KiB	2.19 KiB
logmessage	60.26 KiB	60.94 KiB	696 B

🔗 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 🦊