Remove JSBigStringResourceDll, and unify WebsocketResource

[acoates-ms]

More unification of OfficeReact.Win32.dll and Microsoft.ReactNative.dll

Microsoft Reviewers: Open in CodeFlow

[github-actions]

Performance Test Results

Branch: moreunify
Commit: 4989a8ad
Time: 2026-05-19T23:33:31.493Z
Tests: 161/161 passed

✅ Passed

161 scenario(s) across 28 suite(s) — no regressions

SectionList

Scenario	Mean	Median	StdDev	Renders	vs Baseline
SectionList mount	4.60ms	4.00ms	±1.07ms	1	-20.0%
SectionList unmount	0.50ms	0.50ms	±0.53ms	0	+Infinity%
SectionList rerender	11.00ms	11.00ms	±2.67ms	2	+4.8%
SectionList with-3-sections-15-items	7.00ms	7.00ms	±1.41ms	1	+27.3%
SectionList with-5-sections-50-items	5.20ms	5.00ms	±1.14ms	1	-16.7%
SectionList with-10-sections-200-items	6.30ms	5.50ms	±2.16ms	1	+0.0%
SectionList with-20-sections-200-items	5.10ms	5.00ms	±1.66ms	1	+0.0%
SectionList with-section-separator	2.30ms	2.00ms	±0.48ms	1	+0.0%
SectionList with-item-separator	2.60ms	2.00ms	±0.84ms	1	+0.0%
SectionList with-header-footer	2.10ms	2.00ms	±0.88ms	1	+0.0%
SectionList with-section-footer	1.70ms	2.00ms	±0.48ms	1	+0.0%
SectionList with-sticky-section-headers	1.50ms	1.00ms	±0.71ms	1	-50.0%
SectionList with-empty-list	0.50ms	0.50ms	±0.53ms	1	-50.0%
SectionList with-50-sections-1000-items	2.30ms	2.00ms	±1.83ms	1	+0.0%

FlatList

Scenario	Mean	Median	StdDev	Renders	vs Baseline
FlatList mount	4.50ms	4.00ms	±2.01ms	1	+0.0%
FlatList unmount	0.10ms	0.00ms	±0.32ms	0	+0.0%
FlatList rerender	9.80ms	10.00ms	±1.99ms	2	+11.1%
FlatList with-10-items	6.00ms	6.00ms	±1.15ms	1	+50.0%
FlatList with-100-items	4.60ms	4.00ms	±0.84ms	1	-20.0%
FlatList with-500-items	5.70ms	5.50ms	±1.64ms	1	+37.5%
FlatList with-1000-items	4.40ms	4.00ms	±0.84ms	1	+0.0%
FlatList horizontal	4.30ms	4.00ms	±2.00ms	1	-20.0%
FlatList with-separator	1.80ms	2.00ms	±0.63ms	1	+0.0%
FlatList with-header-footer	2.00ms	1.00ms	±2.16ms	1	-50.0%
FlatList with-empty-list	1.10ms	1.00ms	±1.79ms	1	+100.0%
FlatList with-get-item-layout	1.50ms	1.50ms	±0.53ms	1	+50.0%
FlatList inverted	2.00ms	2.00ms	±0.00ms	1	+33.3%
FlatList with-num-columns	3.10ms	2.00ms	±2.18ms	1	-33.3%

TouchableOpacity

Scenario	Mean	Median	StdDev	Renders	vs Baseline
TouchableOpacity mount	1.20ms	1.00ms	±1.40ms	1	+0.0%
TouchableOpacity unmount	0.10ms	0.00ms	±0.32ms	0	+0.0%
TouchableOpacity rerender	1.10ms	1.00ms	±0.57ms	2	+0.0%
TouchableOpacity custom-active-opacity	0.30ms	0.00ms	±0.48ms	1	-100.0%
TouchableOpacity disabled	0.70ms	1.00ms	±0.48ms	1	+0.0%
TouchableOpacity with-all-handlers	0.60ms	1.00ms	±0.52ms	1	+0.0%
TouchableOpacity with-hit-slop	1.10ms	1.00ms	±0.32ms	1	+0.0%
TouchableOpacity with-delay	0.70ms	1.00ms	±0.48ms	1	+0.0%
TouchableOpacity nested	1.80ms	1.00ms	±1.55ms	1	+0.0%
TouchableOpacity multiple-10	5.13ms	4.00ms	±2.07ms	1	-33.3%
TouchableOpacity multiple-50	28.00ms	27.00ms	±5.22ms	1	-6.9%
TouchableOpacity multiple-100	35.40ms	40.00ms	±10.34ms	1	-20.0%

ScrollView

Scenario	Mean	Median	StdDev	Renders	vs Baseline
ScrollView mount	0.40ms	0.00ms	±0.52ms	1	+0.0%
ScrollView unmount	0.10ms	0.00ms	±0.32ms	0	+0.0%
ScrollView rerender	0.60ms	1.00ms	±0.52ms	2	+0.0%
ScrollView children-20	3.33ms	3.00ms	±1.91ms	1	-25.0%
ScrollView children-100	16.27ms	14.00ms	±3.63ms	1	-12.5%
ScrollView horizontal	3.20ms	3.00ms	±0.79ms	1	-25.0%
ScrollView sticky-headers	2.50ms	3.00ms	±0.85ms	1	+0.0%
ScrollView scroll-indicators	0.70ms	1.00ms	±0.48ms	1	+0.0%
ScrollView nested	1.20ms	1.00ms	±0.42ms	1	+0.0%
ScrollView content-container-style	0.70ms	1.00ms	±0.48ms	1	+0.0%
ScrollView children-500	22.73ms	22.00ms	±5.12ms	1	+15.8%

TouchableHighlight

Scenario	Mean	Median	StdDev	Renders	vs Baseline
TouchableHighlight mount	0.50ms	0.50ms	±0.53ms	1	+0.0%
TouchableHighlight unmount	0.00ms	0.00ms	±0.00ms	0	+0.0%
TouchableHighlight rerender	0.70ms	1.00ms	±0.48ms	2	+0.0%
TouchableHighlight custom-underlay-color	0.50ms	0.50ms	±0.53ms	1	+Infinity%
TouchableHighlight custom-active-opacity	0.50ms	0.50ms	±0.53ms	1	+Infinity%
TouchableHighlight disabled	0.40ms	0.00ms	±0.52ms	1	+0.0%
TouchableHighlight with-all-handlers	0.30ms	0.00ms	±0.48ms	1	+0.0%
TouchableHighlight with-hit-slop	0.20ms	0.00ms	±0.42ms	1	+0.0%
TouchableHighlight nested-touchables	0.60ms	1.00ms	±0.52ms	1	+0.0%
TouchableHighlight multiple-touchables-10	2.00ms	2.00ms	±0.47ms	1	-33.3%
TouchableHighlight multiple-touchables-50	13.20ms	13.00ms	±2.78ms	1	+4.0%
TouchableHighlight multiple-touchables-100	27.90ms	24.00ms	±13.77ms	1	+6.7%

Pressable

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Pressable mount	0.30ms	0.00ms	±0.48ms	1	+0.0%
Pressable unmount	0.10ms	0.00ms	±0.32ms	0	+0.0%
Pressable rerender	0.60ms	1.00ms	±0.52ms	2	+100.0%
Pressable with-all-handlers	0.40ms	0.00ms	±0.52ms	1	+0.0%
Pressable with-style-function	0.10ms	0.00ms	±0.32ms	1	+0.0%
Pressable disabled	0.30ms	0.00ms	±0.48ms	1	+0.0%
Pressable with-hit-slop	0.20ms	0.00ms	±0.42ms	1	+0.0%
Pressable nested	1.10ms	1.00ms	±1.79ms	1	+0.0%
Pressable multiple-10	2.67ms	3.00ms	±0.62ms	1	+0.0%
Pressable multiple-50	14.53ms	15.00ms	±2.67ms	1	+7.1%
Pressable multiple-100	16.93ms	12.00ms	±11.79ms	1	+0.0%

Modal

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Modal mount	0.30ms	0.00ms	±0.48ms	1	+0.0%
Modal unmount	0.10ms	0.00ms	±0.32ms	0	+0.0%
Modal rerender	0.40ms	0.00ms	±0.52ms	2	+0.0%
Modal slide-animation	0.30ms	0.00ms	±0.48ms	1	+0.0%
Modal fade-animation	0.30ms	0.00ms	±0.48ms	1	+0.0%
Modal transparent	0.20ms	0.00ms	±0.42ms	1	+0.0%
Modal with-callbacks	0.30ms	0.00ms	±0.48ms	1	+0.0%
Modal rich-content	1.50ms	1.50ms	±0.53ms	1	-25.0%
Modal with-accessibility	0.40ms	0.00ms	±0.52ms	1	+0.0%

Image

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Image mount	0.10ms	0.00ms	±0.32ms	1	+0.0%
Image unmount	0.10ms	0.00ms	±0.32ms	0	+0.0%
Image rerender	0.30ms	0.00ms	±0.48ms	2	+0.0%
Image with-resize-mode	0.10ms	0.00ms	±0.32ms	1	+0.0%
Image with-border-radius	0.00ms	0.00ms	±0.00ms	1	+0.0%
Image with-tint-color	0.20ms	0.00ms	±0.42ms	1	+0.0%
Image with-blur-radius	0.10ms	0.00ms	±0.32ms	1	+0.0%
Image with-accessibility	0.20ms	0.00ms	±0.42ms	1	+0.0%
Image multiple-10	0.87ms	1.00ms	±0.35ms	1	+0.0%
Image multiple-50	3.47ms	3.00ms	±0.64ms	1	+0.0%
Image multiple-100	8.13ms	8.00ms	±1.85ms	1	+0.0%

ActivityIndicator

Scenario	Mean	Median	StdDev	Renders	vs Baseline
ActivityIndicator mount	0.50ms	0.00ms	±1.27ms	1	+0.0%
ActivityIndicator unmount	0.00ms	0.00ms	±0.00ms	0	+0.0%
ActivityIndicator rerender	0.20ms	0.00ms	±0.42ms	2	+0.0%
ActivityIndicator size-large	0.10ms	0.00ms	±0.32ms	1	+0.0%
ActivityIndicator size-small	0.00ms	0.00ms	±0.00ms	1	+0.0%
ActivityIndicator with-color	0.10ms	0.00ms	±0.32ms	1	+0.0%
ActivityIndicator not-animating	0.10ms	0.00ms	±0.32ms	1	+0.0%
ActivityIndicator with-accessibility	0.10ms	0.00ms	±0.32ms	1	+0.0%
ActivityIndicator multiple-10	0.67ms	1.00ms	±0.49ms	1	+0.0%
ActivityIndicator multiple-50	3.53ms	3.00ms	±0.92ms	1	-25.0%
ActivityIndicator multiple-100	7.93ms	7.00ms	±1.91ms	1	+0.0%

Switch

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Switch mount	0.50ms	0.50ms	±0.53ms	1	+Infinity%
Switch unmount	0.00ms	0.00ms	±0.00ms	0	+0.0%
Switch rerender	0.60ms	1.00ms	±0.52ms	2	+100.0%
Switch value-true	0.40ms	0.00ms	±0.52ms	1	+0.0%
Switch disabled	0.20ms	0.00ms	±0.42ms	1	+0.0%
Switch custom-colors	0.20ms	0.00ms	±0.42ms	1	+0.0%
Switch on-value-change	0.30ms	0.00ms	±0.48ms	1	+0.0%
Switch with-accessibility	0.30ms	0.00ms	±0.48ms	1	+0.0%
Switch multiple-10	2.40ms	2.00ms	±1.84ms	1	+0.0%
Switch multiple-50	9.93ms	9.00ms	±3.65ms	1	+0.0%
Switch multiple-100	18.80ms	20.00ms	±4.57ms	1	+25.0%

Button

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Button mount	0.50ms	0.50ms	±0.53ms	1	-50.0%
Button unmount	0.10ms	0.00ms	±0.32ms	0	+0.0%
Button rerender	1.10ms	1.00ms	±0.32ms	2	+0.0%
Button disabled	0.40ms	0.00ms	±0.52ms	1	-100.0%
Button with-color	0.60ms	1.00ms	±0.52ms	1	+100.0%
Button with-accessibility	0.40ms	0.00ms	±0.52ms	1	-100.0%
Button multiple-10	5.53ms	5.00ms	±1.55ms	1	-16.7%
Button multiple-50	21.20ms	24.00ms	±7.59ms	1	-11.1%
Button multiple-100	15.40ms	15.00ms	±3.81ms	1	-21.1%

TextInput

Scenario	Mean	Median	StdDev	Renders	vs Baseline
TextInput mount	0.30ms	0.00ms	±0.48ms	1	+0.0%
TextInput unmount	0.00ms	0.00ms	±0.00ms	0	+0.0%
TextInput rerender	0.20ms	0.00ms	±0.42ms	2	+0.0%
TextInput multiline	0.10ms	0.00ms	±0.32ms	1	+0.0%
TextInput with-value	0.20ms	0.00ms	±0.42ms	1	+0.0%
TextInput styled	0.20ms	0.00ms	±0.42ms	1	+0.0%
TextInput multiple-100	7.67ms	7.00ms	±2.29ms	1	+0.0%

View

Scenario	Mean	Median	StdDev	Renders	vs Baseline
View mount	0.20ms	0.00ms	±0.42ms	1	+0.0%
View unmount	0.00ms	0.00ms	±0.00ms	0	+0.0%
View rerender	0.10ms	0.00ms	±0.32ms	2	+0.0%
View nested-50	3.13ms	3.00ms	±0.83ms	1	+0.0%
View nested-100	7.87ms	7.00ms	±1.88ms	1	+0.0%
View shadow	0.10ms	0.00ms	±0.32ms	1	+0.0%
View border-radius	0.00ms	0.00ms	±0.00ms	1	+0.0%
View nested-500	18.13ms	11.00ms	±14.54ms	1	+10.0%

Text

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Text mount	0.20ms	0.00ms	±0.42ms	1	+0.0%
Text unmount	0.00ms	0.00ms	±0.00ms	0	+0.0%
Text rerender	0.20ms	0.00ms	±0.42ms	2	+0.0%
Text long-1000	0.10ms	0.00ms	±0.32ms	1	+0.0%
Text nested	0.10ms	0.00ms	±0.32ms	1	+0.0%
Text styled	0.00ms	0.00ms	±0.00ms	1	+0.0%
Text multiple-100	8.27ms	7.00ms	±2.05ms	1	+0.0%

SectionList.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
SectionList native mount	5.39ms	4.93ms	±1.09ms	1	-24.3%

FlatList.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
FlatList native mount	4.60ms	4.47ms	±0.48ms	1	-51.6%

TouchableHighlight.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
TouchableHighlight native mount	1.59ms	1.54ms	±0.21ms	1	-26.4%

TouchableOpacity.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
TouchableOpacity native mount	1.94ms	1.64ms	±0.76ms	1	-47.7%

Pressable.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Pressable native mount	1.54ms	1.54ms	±0.18ms	1	-38.8%

ScrollView.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
ScrollView native mount	3.31ms	3.23ms	±0.65ms	1	-20.3%

ActivityIndicator.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
ActivityIndicator native mount	1.31ms	1.24ms	±0.20ms	1	-49.9%

TextInput.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
TextInput native mount	2.35ms	2.10ms	±0.92ms	1	-48.7%

Switch.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Switch native mount	1.27ms	1.15ms	±0.34ms	1	-33.9%

Button.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Button native mount	1.96ms	1.88ms	±0.48ms	1	-27.6%

Modal.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Modal native mount	0.97ms	0.89ms	±0.20ms	1	-26.6%

Image.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Image native mount	1.57ms	1.54ms	±0.23ms	1	-31.8%

View.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
View native mount	1.09ms	1.05ms	±0.20ms	1	-26.6%

Text.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Text native mount	1.30ms	1.28ms	±0.12ms	1	-26.2%