(DO NOT MERGE) [0.84] Fix e2e test flakiness

[vmoroz]

This is a work in progress.
The initial PR simulates e2e test crash to see that we can collect the crash dump

Microsoft Reviewers: Open in CodeFlow

[github-actions]

Performance Test Results

Branch: PR/0.84-fix-e2e-test-flakiness
Commit: c7a83eb1
Time: 2026-04-25T00:31:13.051Z
Tests: 161/161 passed

❌ Regressions Detected

ScrollView

Scenario	Baseline	Current	Change	Status
ScrollView children-500	19.67ms	46.93ms	+121.1%	❌

ScrollView children-500: Duration increased by 121.1% / +23.00ms (threshold: 10% & 10ms)

✅ Passed

150 scenario(s) across 27 suite(s) — no regressions

SectionList

Scenario	Mean	Median	StdDev	Renders	vs Baseline
SectionList mount	4.70ms	5.00ms	±0.48ms	1	+0.0%
SectionList unmount	0.20ms	0.00ms	±0.42ms	0	+0.0%
SectionList rerender	11.80ms	11.50ms	±1.87ms	2	+9.5%
SectionList with-3-sections-15-items	7.90ms	8.00ms	±1.60ms	1	+45.5%
SectionList with-5-sections-50-items	7.60ms	6.00ms	±4.06ms	1	+0.0%
SectionList with-10-sections-200-items	5.30ms	5.00ms	±0.67ms	1	-9.1%
SectionList with-20-sections-200-items	7.20ms	8.00ms	±2.10ms	1	+60.0%
SectionList with-section-separator	2.70ms	2.00ms	±1.95ms	1	+0.0%
SectionList with-item-separator	2.40ms	2.00ms	±0.70ms	1	+0.0%
SectionList with-header-footer	3.00ms	2.00ms	±2.00ms	1	+0.0%
SectionList with-section-footer	1.90ms	2.00ms	±0.88ms	1	+0.0%
SectionList with-sticky-section-headers	2.00ms	2.00ms	±0.94ms	1	+0.0%
SectionList with-empty-list	1.10ms	1.00ms	±1.79ms	1	+0.0%
SectionList with-50-sections-1000-items	1.70ms	2.00ms	±0.48ms	1	+0.0%

FlatList

Scenario	Mean	Median	StdDev	Renders	vs Baseline
FlatList mount	5.30ms	5.00ms	±1.77ms	1	+25.0%
FlatList unmount	0.10ms	0.00ms	±0.32ms	0	+0.0%
FlatList rerender	11.60ms	11.00ms	±2.50ms	2	+22.2%
FlatList with-10-items	6.30ms	6.00ms	±2.26ms	1	+50.0%
FlatList with-100-items	5.10ms	5.00ms	±1.20ms	1	+0.0%
FlatList with-500-items	5.80ms	6.00ms	±1.32ms	1	+50.0%
FlatList with-1000-items	5.00ms	4.50ms	±1.41ms	1	+12.5%
FlatList horizontal	4.70ms	4.00ms	±2.11ms	1	-20.0%
FlatList with-separator	1.80ms	2.00ms	±0.79ms	1	+0.0%
FlatList with-header-footer	1.70ms	2.00ms	±0.48ms	1	+0.0%
FlatList with-empty-list	0.50ms	0.50ms	±0.53ms	1	+0.0%
FlatList with-get-item-layout	1.60ms	1.50ms	±0.70ms	1	+50.0%
FlatList inverted	1.40ms	1.00ms	±0.52ms	1	-33.3%
FlatList with-num-columns	3.40ms	3.00ms	±1.65ms	1	+0.0%

TouchableOpacity

Scenario	Mean	Median	StdDev	Renders	vs Baseline
TouchableOpacity mount	1.10ms	1.00ms	±0.32ms	1	+0.0%
TouchableOpacity unmount	0.10ms	0.00ms	±0.32ms	0	+0.0%
TouchableOpacity rerender	1.20ms	1.00ms	±0.63ms	2	+0.0%
TouchableOpacity custom-active-opacity	0.90ms	1.00ms	±0.32ms	1	+0.0%
TouchableOpacity disabled	0.50ms	0.50ms	±0.53ms	1	-50.0%
TouchableOpacity with-all-handlers	0.70ms	1.00ms	±0.48ms	1	+0.0%
TouchableOpacity with-hit-slop	0.60ms	1.00ms	±0.52ms	1	+0.0%
TouchableOpacity with-delay	1.30ms	1.00ms	±1.34ms	1	+0.0%
TouchableOpacity nested	1.20ms	1.00ms	±0.42ms	1	+0.0%
TouchableOpacity multiple-10	6.33ms	6.00ms	±1.76ms	1	+0.0%
TouchableOpacity multiple-50	30.27ms	31.00ms	±5.26ms	1	+6.9%
TouchableOpacity multiple-100	44.87ms	49.00ms	±12.86ms	1	-2.0%

TouchableHighlight

Scenario	Mean	Median	StdDev	Renders	vs Baseline
TouchableHighlight mount	0.40ms	0.00ms	±0.52ms	1	-100.0%
TouchableHighlight unmount	0.10ms	0.00ms	±0.32ms	0	+0.0%
TouchableHighlight rerender	0.60ms	1.00ms	±0.52ms	2	+0.0%
TouchableHighlight custom-underlay-color	0.60ms	1.00ms	±0.52ms	1	+Infinity%
TouchableHighlight custom-active-opacity	0.40ms	0.00ms	±0.52ms	1	+0.0%
TouchableHighlight disabled	0.30ms	0.00ms	±0.48ms	1	+0.0%
TouchableHighlight with-all-handlers	0.40ms	0.00ms	±0.52ms	1	+0.0%
TouchableHighlight with-hit-slop	1.00ms	1.00ms	±1.49ms	1	+Infinity%
TouchableHighlight nested-touchables	1.00ms	1.00ms	±0.00ms	1	+0.0%
TouchableHighlight multiple-touchables-10	2.50ms	2.50ms	±0.85ms	1	-16.7%
TouchableHighlight multiple-touchables-50	15.70ms	15.00ms	±3.47ms	1	+20.0%
TouchableHighlight multiple-touchables-100	26.90ms	26.00ms	±6.51ms	1	+15.6%

Pressable

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Pressable mount	0.50ms	0.50ms	±0.53ms	1	+Infinity%
Pressable unmount	0.00ms	0.00ms	±0.00ms	0	+0.0%
Pressable rerender	0.60ms	1.00ms	±0.52ms	2	+100.0%
Pressable with-all-handlers	0.50ms	0.50ms	±0.53ms	1	+Infinity%
Pressable with-style-function	0.30ms	0.00ms	±0.48ms	1	+0.0%
Pressable disabled	0.30ms	0.00ms	±0.48ms	1	+0.0%
Pressable with-hit-slop	0.30ms	0.00ms	±0.48ms	1	+0.0%
Pressable nested	0.70ms	1.00ms	±0.48ms	1	+0.0%
Pressable multiple-10	3.67ms	3.00ms	±1.23ms	1	+0.0%
Pressable multiple-50	16.80ms	17.00ms	±2.24ms	1	+21.4%
Pressable multiple-100	18.33ms	13.00ms	±11.01ms	1	+8.3%

Modal

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Modal mount	0.20ms	0.00ms	±0.42ms	1	+0.0%
Modal unmount	0.00ms	0.00ms	±0.00ms	0	+0.0%
Modal rerender	0.50ms	0.50ms	±0.53ms	2	+Infinity%
Modal slide-animation	0.30ms	0.00ms	±0.48ms	1	+0.0%
Modal fade-animation	0.40ms	0.00ms	±0.52ms	1	+0.0%
Modal transparent	0.40ms	0.00ms	±0.52ms	1	+0.0%
Modal with-callbacks	0.30ms	0.00ms	±0.48ms	1	+0.0%
Modal rich-content	2.00ms	2.00ms	±0.94ms	1	+0.0%
Modal with-accessibility	0.40ms	0.00ms	±0.52ms	1	+0.0%

Image

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Image mount	0.20ms	0.00ms	±0.42ms	1	+0.0%
Image unmount	0.00ms	0.00ms	±0.00ms	0	+0.0%
Image rerender	0.30ms	0.00ms	±0.48ms	2	+0.0%
Image with-resize-mode	0.20ms	0.00ms	±0.42ms	1	+0.0%
Image with-border-radius	0.20ms	0.00ms	±0.42ms	1	+0.0%
Image with-tint-color	0.10ms	0.00ms	±0.32ms	1	+0.0%
Image with-blur-radius	0.10ms	0.00ms	±0.32ms	1	+0.0%
Image with-accessibility	0.10ms	0.00ms	±0.32ms	1	+0.0%
Image multiple-10	1.00ms	1.00ms	±0.00ms	1	+0.0%
Image multiple-50	4.20ms	4.00ms	±0.86ms	1	+33.3%
Image multiple-100	8.60ms	8.00ms	±2.06ms	1	+0.0%

ActivityIndicator

Scenario	Mean	Median	StdDev	Renders	vs Baseline
ActivityIndicator mount	0.20ms	0.00ms	±0.42ms	1	+0.0%
ActivityIndicator unmount	0.10ms	0.00ms	±0.32ms	0	+0.0%
ActivityIndicator rerender	0.00ms	0.00ms	±0.00ms	2	+0.0%
ActivityIndicator size-large	0.20ms	0.00ms	±0.42ms	1	+0.0%
ActivityIndicator size-small	0.10ms	0.00ms	±0.32ms	1	+0.0%
ActivityIndicator with-color	0.20ms	0.00ms	±0.42ms	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	1.00ms	1.00ms	±0.00ms	1	+0.0%
ActivityIndicator multiple-50	4.47ms	4.00ms	±1.25ms	1	+0.0%
ActivityIndicator multiple-100	8.67ms	9.00ms	±1.40ms	1	+28.6%

Switch

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Switch mount	0.10ms	0.00ms	±0.32ms	1	+0.0%
Switch unmount	0.00ms	0.00ms	±0.00ms	0	+0.0%
Switch rerender	0.30ms	0.00ms	±0.48ms	2	-100.0%
Switch value-true	0.30ms	0.00ms	±0.48ms	1	+0.0%
Switch disabled	0.30ms	0.00ms	±0.48ms	1	+0.0%
Switch custom-colors	0.30ms	0.00ms	±0.48ms	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	1.93ms	2.00ms	±1.22ms	1	+0.0%
Switch multiple-50	10.67ms	10.00ms	±3.04ms	1	+11.1%
Switch multiple-100	19.73ms	19.00ms	±4.20ms	1	+18.8%

Button

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Button mount	0.40ms	0.00ms	±0.52ms	1	-100.0%
Button unmount	0.00ms	0.00ms	±0.00ms	0	+0.0%
Button rerender	0.90ms	1.00ms	±0.57ms	2	+0.0%
Button disabled	0.60ms	1.00ms	±0.52ms	1	+0.0%
Button with-color	0.80ms	0.50ms	±1.23ms	1	+0.0%
Button with-accessibility	0.60ms	1.00ms	±0.52ms	1	+0.0%
Button multiple-10	5.87ms	5.00ms	±1.19ms	1	-16.7%
Button multiple-50	24.87ms	28.00ms	±10.02ms	1	+3.7%
Button multiple-100	18.60ms	18.00ms	±3.70ms	1	-5.3%

TextInput

Scenario	Mean	Median	StdDev	Renders	vs Baseline
TextInput mount	0.10ms	0.00ms	±0.32ms	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	0.20ms	0.00ms	±0.42ms	1	+0.0%
TextInput with-value	0.10ms	0.00ms	±0.32ms	1	+0.0%
TextInput styled	0.20ms	0.00ms	±0.42ms	1	+0.0%
TextInput multiple-100	9.07ms	8.00ms	±2.79ms	1	+14.3%

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	0.20ms	0.00ms	±0.42ms	2	+0.0%
View nested-50	3.60ms	4.00ms	±0.51ms	1	+33.3%
View nested-100	8.53ms	8.00ms	±1.64ms	1	+14.3%
View shadow	0.20ms	0.00ms	±0.42ms	1	+0.0%
View border-radius	0.10ms	0.00ms	±0.32ms	1	+0.0%
View nested-500	18.07ms	10.00ms	±14.12ms	1	+0.0%

Text

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Text mount	0.10ms	0.00ms	±0.32ms	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	0.20ms	0.00ms	±0.42ms	1	+0.0%
Text nested	0.30ms	0.00ms	±0.48ms	1	+0.0%
Text styled	0.00ms	0.00ms	±0.00ms	1	+0.0%
Text multiple-100	9.60ms	9.00ms	±2.44ms	1	+28.6%

SectionList.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
SectionList native mount	6.75ms	6.04ms	±1.46ms	1	-7.2%

FlatList.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
FlatList native mount	7.07ms	7.43ms	±0.90ms	1	-19.5%

TouchableHighlight.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
TouchableHighlight native mount	1.78ms	1.71ms	±0.22ms	1	-17.9%

TouchableOpacity.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
TouchableOpacity native mount	2.47ms	2.39ms	±0.43ms	1	-23.9%

Pressable.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Pressable native mount	1.89ms	1.84ms	±0.22ms	1	-26.7%

ScrollView.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
ScrollView native mount	5.24ms	5.42ms	±1.27ms	1	+33.8%

ActivityIndicator.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
ActivityIndicator native mount	1.76ms	1.64ms	±0.22ms	1	-34.0%

TextInput.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
TextInput native mount	2.71ms	2.70ms	±0.53ms	1	-33.9%

Switch.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Switch native mount	1.47ms	1.32ms	±0.32ms	1	-23.6%

Button.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Button native mount	2.47ms	2.41ms	±0.65ms	1	-7.4%

Modal.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Modal native mount	1.23ms	1.19ms	±0.19ms	1	-2.5%

Image.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Image native mount	2.27ms	2.05ms	±0.81ms	1	-9.4%

View.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
View native mount	1.53ms	1.42ms	±0.48ms	1	-0.4%

Text.native-perf-test.ts

Scenario	Mean	Median	StdDev	Renders	vs Baseline
Text native mount	1.74ms	1.78ms	±0.36ms	1	+2.3%