Improve accessibilityLabel performance #17022
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@facebook-github-bot label Android Attention: @shergin Generated by 🚫 dangerJS |
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bowerman0
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Dec 5, 2017
Summary:
Integration testing with Appium on iOS is slow. Profiling with Instruments.app points to `RCTView`'s `accessibilityLabel` method being a hot point in React Native, due to the `RCTRecursiveAccessibilityLabel` function.
I did a baseline benchmark by using Appium's `find_element(accessibility_id: <label>)` call on our application 10 times and got a baseline result of 0.6s for one of our primary screens.
After implementing the change and performing the same call 10 times, I got 0.48s for the same call, for a 20% performance increase in `find_element`.
[iOS] [View] - Improve performance of `RCTView` `accessibilityLabel`
<!--
Help reviewers and the release process by writing your own release notes
**INTERNAL and MINOR tagged notes will not be included in the next version's final release notes.**
CATEGORY
[----------] TYPE
[ CLI ] [-------------] LOCATION
[ DOCS ] [ BREAKING ] [-------------]
[ GENERAL ] [ BUGFIX ] [-{Component}-]
[ INTERNAL ] [ ENHANCEMENT ] [ {File} ]
[ IOS ] [ FEATURE ] [ {Directory} ] |-----------|
[ ANDROID ] [ MINOR ] [ {Framework} ] - | {Message} |
[----------] [-------------] [-------------] |-----------|
[CATEGORY] [TYPE] [LOCATION] - MESSAGE
EXAMPLES:
[IOS] [BREAKING] [FlatList] - Change a thing that breaks other things
[ANDROID] [BUGFIX] [TextInput] - Did a thing to TextInput
[CLI] [FEATURE] [local-cli/info/info.js] - CLI easier to do things with
[DOCS] [BUGFIX] [GettingStarted.md] - Accidentally a thing/word
[GENERAL] [ENHANCEMENT] [Yoga] - Added new yoga thing/position
[INTERNAL] [FEATURE] [./scripts] - Added thing to script that nobody will see
-->
Closes facebook#17022
Differential Revision: D6459462
Pulled By: shergin
fbshipit-source-id: 3de7e5dc075281e35e62b4d4234d3f7fac5aae23
bowerman0
pushed a commit
to bowerman0/react-native
that referenced
this pull request
Dec 5, 2017
Summary:
Integration testing with Appium on iOS is slow. Profiling with Instruments.app points to `RCTView`'s `accessibilityLabel` method being a hot point in React Native, due to the `RCTRecursiveAccessibilityLabel` function.
I did a baseline benchmark by using Appium's `find_element(accessibility_id: <label>)` call on our application 10 times and got a baseline result of 0.6s for one of our primary screens.
After implementing the change and performing the same call 10 times, I got 0.48s for the same call, for a 20% performance increase in `find_element`.
[iOS] [View] - Improve performance of `RCTView` `accessibilityLabel`
<!--
Help reviewers and the release process by writing your own release notes
**INTERNAL and MINOR tagged notes will not be included in the next version's final release notes.**
CATEGORY
[----------] TYPE
[ CLI ] [-------------] LOCATION
[ DOCS ] [ BREAKING ] [-------------]
[ GENERAL ] [ BUGFIX ] [-{Component}-]
[ INTERNAL ] [ ENHANCEMENT ] [ {File} ]
[ IOS ] [ FEATURE ] [ {Directory} ] |-----------|
[ ANDROID ] [ MINOR ] [ {Framework} ] - | {Message} |
[----------] [-------------] [-------------] |-----------|
[CATEGORY] [TYPE] [LOCATION] - MESSAGE
EXAMPLES:
[IOS] [BREAKING] [FlatList] - Change a thing that breaks other things
[ANDROID] [BUGFIX] [TextInput] - Did a thing to TextInput
[CLI] [FEATURE] [local-cli/info/info.js] - CLI easier to do things with
[DOCS] [BUGFIX] [GettingStarted.md] - Accidentally a thing/word
[GENERAL] [ENHANCEMENT] [Yoga] - Added new yoga thing/position
[INTERNAL] [FEATURE] [./scripts] - Added thing to script that nobody will see
-->
Closes facebook#17022
Differential Revision: D6459462
Pulled By: shergin
fbshipit-source-id: 3de7e5dc075281e35e62b4d4234d3f7fac5aae23
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Motivation
Integration testing with Appium on iOS is slow. Profiling with Instruments.app points to
RCTView'saccessibilityLabelmethod being a hot point in React Native, due to theRCTRecursiveAccessibilityLabelfunction.Test Plan
I did a baseline benchmark by using Appium's
find_element(accessibility_id: <label>)call on our application 10 times and got a baseline result of 0.6s for one of our primary screens.After implementing the change and performing the same call 10 times, I got 0.48s for the same call, for a 20% performance increase in
find_element.Release Notes
[iOS] [View] - Improve performance of
RCTViewaccessibilityLabel