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improve rrdom performance (#1127)

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* add more check to rrdom to make diff algorithm more robust

* fix: selector match in iframe is case-insensitive

add try catch to some fragile points

* test: increase timeout value for Jest

* improve code style

* fix: failed to execute insertBefore on Node in the diff function

this happens when ids of doctype or html element are changed in the virtual dom

also improve the code quality

* refactor diff function to make the code cleaner

* fix: virtual nodes are passed to plugin's onBuild function

* refactor the diff function and adjust the order of diff work.

* call afterAppend hook in a consistent traversal order

* improve the performance of the "contains" function

reduce the complexity from O(n) to O(logn)
a specific benchmark is needed to add further

* add a real events for benchmark

* refactor: change the data structure of childNodes from array to linked list

* remove legacy code in rrweb package

* update unit tests

* update change log
This commit is contained in:
Yun Feng
2026-04-01 12:00:00 +08:00
committed by GitHub
parent b837600e80
commit 8edace971d
8 changed files with 362 additions and 351 deletions
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.changeset/serious-ants-juggle.md Normal file
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---
'rrdom': major
'rrdom-nodejs': major
'rrweb': patch
---
Refactor: Improve performance by 80% in a super large benchmark case.
1. Refactor: change the data structure of childNodes from array to linked list
2. Improve the performance of the "contains" function. New algorithm will reduce the complexity from O(n) to O(logn)