example PR introducing performance regression

[mdjastrzebski]

Summary

This PR intentionally introduces performance regression to showcase how Reassure detects and present such case.

Test plan

[github-actions]

Performance Comparison Report

• Current: 344e2be - 2025-07-17 07:44:14Z
• Baseline: main (5d5cae2) - 2025-07-17 07:43:51Z

Significant Changes To Duration

Show entries

Name	Type	Duration	Count
Web Vite - AsyncComponent (10 runs)	render	53.9 ms → 62.1 ms (+8.2 ms, +15.3%) 🔴	4 → 5 (+1, +25.0%) 🔴
Web Vite - TestList (100 items)	render	13.9 ms → 18.6 ms (+4.8 ms, +34.4%) 🔴🔴	1 → 2 (+1, +100.0%) 🔴

Show details

Name	Type	Duration	Count
Web Vite - AsyncComponent (10 runs)	render	Baseline Mean: 53.9 ms Stdev: 8.9 ms (16.5%) Runs: 57.4 58.3 59.3 38.8 53.3 62.1 61.6 61.6 45.8 40.7 Warmup runs: 64.9 Removed outliers: (none) Current Mean: 62.1 ms Stdev: 12.7 ms (20.5%) Runs: 67.1 69.8 57.9 40.7 74.5 73.0 73.9 59.0 40.4 65.1 Warmup runs: 80.8 Removed outliers: (none)	Baseline Mean: 4 Stdev: 0 (0.0%) Runs: 4 4 4 4 4 4 4 4 4 4 Render issues: Current Mean: 5 Stdev: 0 (0.0%) Runs: 5 5 5 5 5 5 5 5 5 5 Render issues: - Initial updates: 1
Web Vite - TestList (100 items)	render	Baseline Mean: 13.9 ms Stdev: 0.2 ms (1.5%) Runs: 13.9 14.0 13.6 13.6 13.7 13.8 13.7 13.9 14.0 14.3 Warmup runs: 19.9 Removed outliers: (none) Current Mean: 18.6 ms Stdev: 0.4 ms (2.4%) Runs: 18.5 18.2 18.1 18.4 18.4 18.3 18.6 19.1 19.4 19.1 Warmup runs: 25.5 Removed outliers: (none)	Baseline Mean: 1 Stdev: 0 (0.0%) Runs: 1 1 1 1 1 1 1 1 1 1 Render issues: Current Mean: 2 Stdev: 0 (0.0%) Runs: 2 2 2 2 2 2 2 2 2 2 Render issues: - Initial updates: 1

Meaningless Changes To Duration

Show entries

Name	Type	Duration	Count
Web Vite - AsyncComponent (50 runs)	render	62.3 ms → 63.7 ms (+1.4 ms, +2.3%)	4 → 5 (+1, +25.0%) 🔴

Show details

Name	Type	Duration	Count
Web Vite - AsyncComponent (50 runs)	render	Baseline Mean: 62.3 ms Stdev: 1.1 ms (1.7%) Runs: 61.9 62.1 59.2 62.4 62.7 62.9 62.6 62.4 62.3 62.0 62.2 62.0 62.1 65.4 62.4 62.4 62.0 62.6 62.7 62.7 60.0 64.2 62.6 62.4 62.4 62.3 62.6 62.4 62.4 62.3 62.2 59.8 62.7 62.2 63.1 Warmup runs: 62.0 Removed outliers: 34.7 39.0 46.6 53.7 34.8 39.4 53.5 46.9 40.5 34.6 39.5 53.3 46.7 40.6 34.6 Current Mean: 63.7 ms Stdev: 13.6 ms (21.3%) Runs: 76.7 66.6 40.2 65.6 74.9 75.0 67.8 39.8 59.8 74.9 75.4 71.7 40.1 53.0 74.6 74.4 75.8 44.8 46.7 74.7 74.5 74.6 53.8 46.3 74.4 74.7 74.4 53.8 39.8 74.2 74.9 74.1 60.0 40.3 74.4 74.6 76.0 60.8 40.1 65.5 75.4 74.8 67.5 40.2 60.6 74.3 74.9 72.2 40.3 53.0 Warmup runs: 74.6 Removed outliers: (none)	Baseline Mean: 4 Stdev: 0 (0.0%) Runs: 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 Render issues: Current Mean: 5 Stdev: 0 (0.0%) Runs: 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 Render issues: - Initial updates: 1

Render Count Changes

Show entries

Name	Type	Duration	Count
Web Vite - AsyncComponent (10 runs)	render	53.9 ms → 62.1 ms (+8.2 ms, +15.3%) 🔴	4 → 5 (+1, +25.0%) 🔴
Web Vite - AsyncComponent (50 runs)	render	62.3 ms → 63.7 ms (+1.4 ms, +2.3%)	4 → 5 (+1, +25.0%) 🔴
Web Vite - TestList (100 items)	render	13.9 ms → 18.6 ms (+4.8 ms, +34.4%) 🔴🔴	1 → 2 (+1, +100.0%) 🔴

Show details

Name	Type	Duration	Count
Web Vite - AsyncComponent (10 runs)	render	Baseline Mean: 53.9 ms Stdev: 8.9 ms (16.5%) Runs: 57.4 58.3 59.3 38.8 53.3 62.1 61.6 61.6 45.8 40.7 Warmup runs: 64.9 Removed outliers: (none) Current Mean: 62.1 ms Stdev: 12.7 ms (20.5%) Runs: 67.1 69.8 57.9 40.7 74.5 73.0 73.9 59.0 40.4 65.1 Warmup runs: 80.8 Removed outliers: (none)	Baseline Mean: 4 Stdev: 0 (0.0%) Runs: 4 4 4 4 4 4 4 4 4 4 Render issues: Current Mean: 5 Stdev: 0 (0.0%) Runs: 5 5 5 5 5 5 5 5 5 5 Render issues: - Initial updates: 1
Web Vite - AsyncComponent (50 runs)	render	Baseline Mean: 62.3 ms Stdev: 1.1 ms (1.7%) Runs: 61.9 62.1 59.2 62.4 62.7 62.9 62.6 62.4 62.3 62.0 62.2 62.0 62.1 65.4 62.4 62.4 62.0 62.6 62.7 62.7 60.0 64.2 62.6 62.4 62.4 62.3 62.6 62.4 62.4 62.3 62.2 59.8 62.7 62.2 63.1 Warmup runs: 62.0 Removed outliers: 34.7 39.0 46.6 53.7 34.8 39.4 53.5 46.9 40.5 34.6 39.5 53.3 46.7 40.6 34.6 Current Mean: 63.7 ms Stdev: 13.6 ms (21.3%) Runs: 76.7 66.6 40.2 65.6 74.9 75.0 67.8 39.8 59.8 74.9 75.4 71.7 40.1 53.0 74.6 74.4 75.8 44.8 46.7 74.7 74.5 74.6 53.8 46.3 74.4 74.7 74.4 53.8 39.8 74.2 74.9 74.1 60.0 40.3 74.4 74.6 76.0 60.8 40.1 65.5 75.4 74.8 67.5 40.2 60.6 74.3 74.9 72.2 40.3 53.0 Warmup runs: 74.6 Removed outliers: (none)	Baseline Mean: 4 Stdev: 0 (0.0%) Runs: 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 Render issues: Current Mean: 5 Stdev: 0 (0.0%) Runs: 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 Render issues: - Initial updates: 1
Web Vite - TestList (100 items)	render	Baseline Mean: 13.9 ms Stdev: 0.2 ms (1.5%) Runs: 13.9 14.0 13.6 13.6 13.7 13.8 13.7 13.9 14.0 14.3 Warmup runs: 19.9 Removed outliers: (none) Current Mean: 18.6 ms Stdev: 0.4 ms (2.4%) Runs: 18.5 18.2 18.1 18.4 18.4 18.3 18.6 19.1 19.4 19.1 Warmup runs: 25.5 Removed outliers: (none)	Baseline Mean: 1 Stdev: 0 (0.0%) Runs: 1 1 1 1 1 1 1 1 1 1 Render issues: Current Mean: 2 Stdev: 0 (0.0%) Runs: 2 2 2 2 2 2 2 2 2 2 Render issues: - Initial updates: 1

Render Issues

Name	Initial Updates	Redundant Updates
Web Vite - AsyncComponent (10 runs)	1 🔴	-
Web Vite - AsyncComponent (50 runs)	1 🔴	-
Web Vite - TestList (100 items)	1 🔴	-

Added Entries

There are no entries

Removed Entries

There are no entries

Generated by 🚫 dangerJS against 8d8e5e9

[Victorvikson1996]

How can Use this

[mdjastrzebski]

@Victorvikson1996 you can learn more about Reassure here: docs, GitHub.

[Victorvikson1996]

Thank you so much @mdjastrzebski