Reduce CI contention with stale-run cancellation and shared Apple builds

[shai-almog]

Mac runner queueing dominates turnaround: sampled September 30 runs spent 147 minutes waiting for a 43-second accessibility check, 118 minutes waiting for 43 minutes of Catalyst work, and 255 minutes waiting along an iOS run's 59-minute final dependency chain. Superseded revisions, repeated port preparation, and cn1lib matrix fan-out increase that contention.

This change cancels whole obsolete validation runs and reduces Mac allocations while retaining the performance gate and native coverage:

• Apply whole-workflow concurrency to PR validation and keep only the latest push for validation workflows. Preserve existing publication locks. Replace cancellation-resistant diagnostic always() conditions with !cancelled() so failed runs retain diagnostics but obsolete runs can stop.
• Add trusted-base pull_request_target cleanup on synchronization and closure. It cancels obsolete PR checks even when path filters no longer trigger a replacement, rechecks current PR/run state, distinguishes forks, and never targets push, release, manual, or scheduled runs.
• Consolidate ad cn1lib checks from eight Mac jobs to one sequential job, and AI cn1lib checks from four to one. Resolve pods once per library, retain MRR and ARC compilation, retain both AdMob link destinations, and continue checking other selected libraries after a failure.
• Select affected cn1lib checks before allocating Macs and in the main PR job. Translator implementation changes require AdMob link validation without compiling unrelated ad providers; shared runtime headers retain all relevant native probes. Unknown diffs run all checks; a verified empty diff skips them.
• Coordinate iOS UI, notification, packaging, and Catalyst workflows around one port producer/artifact, removing three duplicate producer jobs when all suites are selected. Each consumer retains its original ordered path filters and can still be dispatched independently. Point Catalyst's port-status backfill at its new automatic producer.
• Stop independent ad/AI cn1lib edits from starting the Apple UI suites. Keep cn1-ads-mock because the sample actually depends on it. Keep VM coverage and the AppKit performance gate unchanged.
• Remove redundant tool-cache restores from consumers whose required artifact already contains the tools. No cache-capacity or runner-limit settings change, and cache availability is not required for artifact handoff.

Validation:

• Repository actionlint gate, duplicated-toolchain-leg gate, cn1lib native-coverage gate, copyright checks, and git diff --check pass.
• 20 Python selection/probe tests and seven cancellation tests pass, including empty/unknown diffs, ordered exclusions/re-inclusions, retained shared-input coverage, fork isolation, closed/reopened PRs, and cancellation races.
• All 83 port-status tests pass.
• Local Xcode 26.3 builds of Whisper and AdMob pass under both MRR and ARC; AdMob uses its pinned CocoaPod. No GraalVM/native-image CI was dispatched or introduced.
• Read-only live dry-run of cleanup succeeds; no existing runs were cancelled during validation.

The ten cn1lib allocations and three duplicate iOS producers are configuration reductions when their full suites are selected, not measured wall-time savings. Hosted exact-head execution and post-merge timings remain to be observed. The cleanup workflow becomes active from the trusted default branch after merge.

[github-actions]

Developer Guide build artifacts are available for download from this workflow run:

• Developer Guide HTML package
• Developer Guide PDF
• AsciiDoc linter report
• Vale report
• Unused image report
• Paragraph capitalization report
• LanguageTool report

Developer Guide quality checks:

• AsciiDoc linter: No issues found (report)
• Vale: No alerts found (report)
• Paragraph capitalization: No paragraph capitalization issues (report)
• LanguageTool: No grammar matches (report)
• Image references: No unused images detected (report)

[shai-almog]

Compared 12 screenshots: 12 matched.
✅ JavaSE simulator integration screenshots matched stored baselines.

[shai-almog]

Native fidelity (Android, Material 3)

54 pairs compared -- median 95.6%, worst 91.3% (FlatButton_pressed_dark), 25th pct 94.9%, mean 95.7%.

Distribution -- >=99%: 2 | 95-99%: 37 | 90-95%: 15 | <90%: 0

Component	State	Appearance	Material	Fidelity	SSIM	mean delta	vs base	Geometry
FlatButton	pressed	dark	normal	91.3%	0.899	3.10	0.0	ok
Tabs	normal	light	normal	92.3%	0.914	3.05	0.0	ok
Button	pressed	dark	normal	92.6%	0.949	4.32	0.0	ok
FlatButton	normal	dark	normal	93.2%	0.938	2.69	0.0	ok
Button	disabled	dark	normal	93.3%	0.928	2.20	0.0	ok
Button	pressed	light	normal	93.3%	0.952	3.68	0.0	ok
FlatButton	normal	light	normal	93.7%	0.941	2.29	0.0	ok
FlatButton	pressed	light	normal	93.8%	0.942	2.56	0.0	ok
FloatingActionButton	pressed	light	normal	94.4%	0.927	2.82	0.0	OFF (h 0.88)
RadioButton	normal	dark	normal	94.5%	0.963	2.19	0.0	ok
RadioButton	normal	light	normal	94.7%	0.964	1.85	0.0	ok
CheckBox	selected	dark	normal	94.7%	0.950	2.60	0.0	ok
RadioButton	selected	dark	normal	94.8%	0.963	2.42	0.0	ok
CheckBox	normal	dark	normal	94.9%	0.952	2.69	0.0	ok
Button	normal	dark	normal	94.9%	0.949	3.16	0.0	ok
CheckBox	normal	light	normal	95.0%	0.953	2.30	0.0	ok
Toolbar	normal	dark	normal	95.1%	0.906	1.60	0.0	ok
RaisedButton	pressed	dark	normal	95.2%	0.950	2.39	0.0	ok
CheckBox	disabled	dark	normal	95.2%	0.954	1.47	0.0	ok
CheckBox	disabled	light	normal	95.2%	0.956	1.34	0.0	ok
Tabs	normal	dark	normal	95.2%	0.913	3.65	0.0	ok
RadioButton	disabled	dark	normal	95.3%	0.963	1.18	0.0	ok
RadioButton	selected	light	normal	95.3%	0.964	1.84	0.0	ok
CheckBox	selected	light	normal	95.4%	0.952	2.06	0.0	ok
Switch	selected	light	normal	95.4%	0.966	1.59	0.0	ok
Switch	selected	dark	normal	95.5%	0.966	1.86	0.0	ok
RadioButton	disabled	light	normal	95.5%	0.966	1.08	0.0	ok
Switch	disabled	dark	normal	95.6%	0.961	0.85	0.0	ok
Dialog	normal	light	normal	95.7%	0.930	2.30	0.0	ok
RaisedButton	pressed	light	normal	95.8%	0.958	2.16	0.0	ok
Button	normal	light	normal	95.8%	0.953	2.46	0.0	ok
Dialog	normal	dark	normal	95.8%	0.932	2.30	0.0	ok
Switch	normal	light	normal	96.0%	0.961	1.45	0.0	ok
FloatingActionButton	normal	light	normal	96.1%	0.937	1.14	0.0	ok
FloatingActionButton	pressed	dark	normal	96.2%	0.951	2.45	0.0	ok
Switch	normal	dark	normal	96.2%	0.962	1.39	0.0	ok
TextField	disabled	dark	normal	96.2%	0.965	0.76	0.0	ok
RaisedButton	normal	dark	normal	96.4%	0.952	1.78	0.0	ok
Switch	disabled	light	normal	96.4%	0.970	0.61	0.0	ok
Button	disabled	light	normal	96.8%	0.960	1.06	0.0	ok
ProgressBar	normal	dark	normal	96.9%	0.967	2.03	0.0	OFF (h 1.50)
RaisedButton	disabled	dark	normal	97.0%	0.955	0.89	0.0	ok
FloatingActionButton	normal	dark	normal	97.1%	0.952	1.43	0.0	ok
ProgressBar	normal	light	normal	97.3%	0.974	1.53	0.0	OFF (h 1.50)
RaisedButton	disabled	light	normal	97.3%	0.961	0.79	0.0	ok
TextField	disabled	light	normal	97.3%	0.965	0.79	0.0	ok
RaisedButton	normal	light	normal	97.3%	0.961	1.40	0.0	ok
TextField	normal	dark	normal	97.6%	0.958	1.83	0.0	ok
TextField	normal	light	normal	97.6%	0.958	1.63	0.0	ok
Slider	normal	dark	normal	98.4%	0.990	0.87	0.0	ok
Toolbar	normal	light	normal	98.7%	0.974	1.28	0.0	ok
Slider	normal	light	normal	99.0%	0.991	0.47	0.0	ok
Slider	disabled	dark	normal	99.6%	0.993	0.22	0.0	ok
Slider	disabled	light	normal	99.6%	0.993	0.18	0.0	ok

Geometry vs native (bbox offset / size ratio / center offset / corner radius) -- gated separately from the visual score

Component	State	Appearance	bbox dx,dy (px)	w ratio	h ratio	center off (px)	radius native->cn1 (px)
FloatingActionButton	pressed	light	+0,+0	0.929	0.881	4.0	-
FloatingActionButton	normal	light	+0,+0	0.946	0.912	2.9	-
Button	pressed	dark	+0,+0	0.947	0.975	2.6	-
Button	disabled	dark	+0,+0	0.947	0.975	2.6	-
Button	pressed	light	+0,+0	0.947	0.975	2.6	-
Button	normal	dark	+0,+0	0.947	0.975	2.6	-
RaisedButton	pressed	dark	+0,+0	0.945	0.975	2.6	-
RaisedButton	pressed	light	+0,+0	0.945	0.975	2.6	-
Button	normal	light	+0,+0	0.947	0.975	2.6	-
RaisedButton	normal	dark	+0,+0	0.945	0.975	2.6	-
Button	disabled	light	+0,+0	0.947	0.975	2.6	-
RaisedButton	disabled	dark	+0,+0	0.945	0.975	2.6	-
RaisedButton	disabled	light	+0,+0	0.945	0.975	2.6	-
RaisedButton	normal	light	+0,+0	0.945	0.975	2.6	-
RadioButton	normal	dark	+1,+1	1.029	1.000	2.2	-
RadioButton	normal	light	+1,+1	1.029	1.000	2.2	-
RadioButton	selected	dark	+1,+1	1.029	1.000	2.2	-
RadioButton	disabled	dark	+1,+1	1.029	1.000	2.2	-
RadioButton	selected	light	+1,+1	1.029	1.000	2.2	-
Switch	selected	light	+0,+0	1.080	1.063	2.2	-
RadioButton	disabled	light	+1,+1	1.029	1.000	2.2	-
CheckBox	selected	dark	+1,+1	1.013	1.000	1.8	-
CheckBox	normal	dark	+1,+1	1.013	1.000	1.8	-
CheckBox	normal	light	+1,+1	1.013	1.000	1.8	-
CheckBox	disabled	dark	+1,+1	1.013	1.000	1.8	-
CheckBox	disabled	light	+1,+1	1.013	1.000	1.8	-
CheckBox	selected	light	+1,+1	1.013	1.000	1.8	-
Switch	selected	dark	+0,+0	1.060	1.031	1.6	-
Switch	disabled	dark	+0,-1	1.060	1.031	1.6	-
Dialog	normal	light	+0,+0	1.007	0.982	1.6	-
Dialog	normal	dark	+0,+0	1.007	0.982	1.6	-
Switch	normal	light	+0,-1	1.060	1.031	1.6	-
Switch	normal	dark	+0,-1	1.060	1.031	1.6	-
Switch	disabled	light	+0,-1	1.060	1.031	1.6	-
FloatingActionButton	pressed	dark	+0,+0	0.963	0.963	1.4	-
FloatingActionButton	normal	dark	+0,+0	0.963	0.963	1.4	-
Toolbar	normal	light	-1,+1	1.000	1.000	1.4	-
FlatButton	pressed	dark	+0,+0	0.977	0.975	1.1	-
FlatButton	normal	dark	+0,+0	0.977	0.975	1.1	-
FlatButton	normal	light	+0,+0	0.977	0.975	1.1	-
FlatButton	pressed	light	+0,+0	0.977	0.975	1.1	-
TextField	normal	dark	+0,+0	1.015	1.036	1.1	-
TextField	normal	light	+0,+0	1.015	1.036	1.1	-
Toolbar	normal	dark	+0,+0	1.000	1.032	1.0	-
ProgressBar	normal	dark	+0,+0	1.000	1.500	1.0	-
ProgressBar	normal	light	+0,+0	1.000	1.500	1.0	-
TextField	disabled	dark	+0,+0	1.015	1.018	0.7	-
TextField	disabled	light	+0,+0	1.015	1.018	0.7	-
Tabs	normal	light	+0,+1	1.000	0.984	0.5	-
Slider	normal	dark	+1,+0	0.996	1.000	0.5	-
Slider	normal	light	+1,+0	0.996	1.000	0.5	-
Tabs	normal	dark	+0,+0	1.000	1.000	0.0	-
Slider	disabled	dark	+0,+0	1.000	1.000	0.0	-
Slider	disabled	light	+0,+0	1.000	1.000	0.0	-

Side-by-side comparisons (worst first)

• FlatButton_pressed_dark -- 91.25% fidelity (SSIM 0.8985) (no change)

  
  Left: native widget. Right: Codename One render.

• Tabs_normal_light -- 92.28% fidelity (SSIM 0.9140) (no change)

  
  Left: native widget. Right: Codename One render.

• Button_pressed_dark -- 92.61% fidelity (SSIM 0.9485) (no change)

  
  Left: native widget. Right: Codename One render.

• FlatButton_normal_dark -- 93.24% fidelity (SSIM 0.9381) (no change)

  
  Left: native widget. Right: Codename One render.

• Button_disabled_dark -- 93.26% fidelity (SSIM 0.9278) (no change)

  
  Left: native widget. Right: Codename One render.

• Button_pressed_light -- 93.34% fidelity (SSIM 0.9521) (no change)

  
  Left: native widget. Right: Codename One render.

• FlatButton_normal_light -- 93.72% fidelity (SSIM 0.9410) (no change)

  
  Left: native widget. Right: Codename One render.

• FlatButton_pressed_light -- 93.77% fidelity (SSIM 0.9424) (no change)

  
  Left: native widget. Right: Codename One render.

• FloatingActionButton_pressed_light -- 94.44% fidelity (SSIM 0.9273) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_normal_dark -- 94.46% fidelity (SSIM 0.9630) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_normal_light -- 94.69% fidelity (SSIM 0.9643) (no change)

  
  Left: native widget. Right: Codename One render.

• CheckBox_selected_dark -- 94.71% fidelity (SSIM 0.9502) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_selected_dark -- 94.79% fidelity (SSIM 0.9630) (no change)

  
  Left: native widget. Right: Codename One render.

• CheckBox_normal_dark -- 94.93% fidelity (SSIM 0.9516) (no change)

  
  Left: native widget. Right: Codename One render.

• Button_normal_dark -- 94.94% fidelity (SSIM 0.9491) (no change)

  
  Left: native widget. Right: Codename One render.

• CheckBox_normal_light -- 95.03% fidelity (SSIM 0.9531) (no change)

  
  Left: native widget. Right: Codename One render.

• Toolbar_normal_dark -- 95.07% fidelity (SSIM 0.9059) (no change)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_pressed_dark -- 95.19% fidelity (SSIM 0.9501) (no change)

  
  Left: native widget. Right: Codename One render.

• CheckBox_disabled_dark -- 95.20% fidelity (SSIM 0.9538) (no change)

  
  Left: native widget. Right: Codename One render.

• CheckBox_disabled_light -- 95.21% fidelity (SSIM 0.9562) (no change)

  
  Left: native widget. Right: Codename One render.

• Tabs_normal_dark -- 95.23% fidelity (SSIM 0.9125) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_disabled_dark -- 95.29% fidelity (SSIM 0.9630) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_selected_light -- 95.33% fidelity (SSIM 0.9642) (no change)

  
  Left: native widget. Right: Codename One render.

• CheckBox_selected_light -- 95.37% fidelity (SSIM 0.9524) (no change)

  
  Left: native widget. Right: Codename One render.

• Switch_selected_light -- 95.37% fidelity (SSIM 0.9658) (no change)

  
  Left: native widget. Right: Codename One render.

• Switch_selected_dark -- 95.45% fidelity (SSIM 0.9656) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_disabled_light -- 95.46% fidelity (SSIM 0.9657) (no change)

  
  Left: native widget. Right: Codename One render.

• Switch_disabled_dark -- 95.57% fidelity (SSIM 0.9613) (no change)

  
  Left: native widget. Right: Codename One render.

• Dialog_normal_light -- 95.65% fidelity (SSIM 0.9300) (no change)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_pressed_light -- 95.78% fidelity (SSIM 0.9578) (no change)

  
  Left: native widget. Right: Codename One render.

• Button_normal_light -- 95.79% fidelity (SSIM 0.9528) (no change)

  
  Left: native widget. Right: Codename One render.

• Dialog_normal_dark -- 95.79% fidelity (SSIM 0.9322) (no change)

  
  Left: native widget. Right: Codename One render.

• Switch_normal_light -- 95.97% fidelity (SSIM 0.9612) (no change)

  
  Left: native widget. Right: Codename One render.

• FloatingActionButton_normal_light -- 96.09% fidelity (SSIM 0.9367) (no change)

  
  Left: native widget. Right: Codename One render.

• FloatingActionButton_pressed_dark -- 96.16% fidelity (SSIM 0.9513) (no change)

  
  Left: native widget. Right: Codename One render.

• Switch_normal_dark -- 96.17% fidelity (SSIM 0.9616) (no change)

  
  Left: native widget. Right: Codename One render.

• TextField_disabled_dark -- 96.21% fidelity (SSIM 0.9648) (no change)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_normal_dark -- 96.41% fidelity (SSIM 0.9516) (no change)

  
  Left: native widget. Right: Codename One render.

• Switch_disabled_light -- 96.43% fidelity (SSIM 0.9698) (no change)

  
  Left: native widget. Right: Codename One render.

• Button_disabled_light -- 96.80% fidelity (SSIM 0.9596) (no change)

  
  Left: native widget. Right: Codename One render.

• ProgressBar_normal_dark -- 96.91% fidelity (SSIM 0.9669) (no change)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_disabled_dark -- 97.02% fidelity (SSIM 0.9549) (no change)

  
  Left: native widget. Right: Codename One render.

• FloatingActionButton_normal_dark -- 97.07% fidelity (SSIM 0.9521) (no change)

  
  Left: native widget. Right: Codename One render.

• ProgressBar_normal_light -- 97.26% fidelity (SSIM 0.9739) (no change)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_disabled_light -- 97.26% fidelity (SSIM 0.9611) (no change)

  
  Left: native widget. Right: Codename One render.

• TextField_disabled_light -- 97.29% fidelity (SSIM 0.9649) (no change)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_normal_light -- 97.32% fidelity (SSIM 0.9613) (no change)

  
  Left: native widget. Right: Codename One render.

• TextField_normal_dark -- 97.61% fidelity (SSIM 0.9583) (no change)

  
  Left: native widget. Right: Codename One render.

• TextField_normal_light -- 97.62% fidelity (SSIM 0.9582) (no change)

  
  Left: native widget. Right: Codename One render.

• Slider_normal_dark -- 98.39% fidelity (SSIM 0.9900) (no change)

  
  Left: native widget. Right: Codename One render.

• Toolbar_normal_light -- 98.69% fidelity (SSIM 0.9739) (no change)

  
  Left: native widget. Right: Codename One render.

• Slider_normal_light -- 98.95% fidelity (SSIM 0.9908) (no change)

  
  Left: native widget. Right: Codename One render.

• Slider_disabled_dark -- 99.56% fidelity (SSIM 0.9927) (no change)

  
  Left: native widget. Right: Codename One render.

• Slider_disabled_light -- 99.59% fidelity (SSIM 0.9932) (no change)

  
  Left: native widget. Right: Codename One render.

[shai-almog]

@codex review

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-01T03:44:16.649931Z	7620dcb	Manual request

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review" or "@codex security review".

Codex reacts with 👀 while any review is running, comments if it has suggestions, and reacts with 👍 once all reviews finish with no findings.

[github-actions]

Cloudflare Preview

• URL: https://pr-5928-website-preview.codenameone.pages.dev
• Branch: pr-5928-website-preview

[shai-almog]

Compared 193 screenshots: 193 matched.
✅ JavaScript-port screenshot tests passed.

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. Already looking forward to the next diff.

Reviewed commit: c8bbacb472

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[shai-almog]

Compared 172 screenshots: 172 matched.
Native Windows port, REAL shipping pipeline: the hellocodenameone screenshot suite rendered by a binary CROSS-COMPILED on Linux (clang-cl + xwin, WebView2 linked) and RUN on a Windows x64 runner. Compared against the in-repo baseline in scripts/windows/screenshots.

Benchmark Results

Detailed Performance Metrics

Metric	Duration
SIMD kernel backend	SSE2 (x64) / NEON (arm64) native kernels
SIMD int-add (64K x300)	java 63ms / native 6ms = 10.5x speedup
SIMD float-mul (64K x300)	java 56ms / native 5ms = 11.2x speedup
SIMD kernel correctness	PASS (native result == scalar reference)
Base64 native bridge	unavailable (CN1 + SIMD + image benchmarks only)
Base64 payload size	8192 bytes
Base64 benchmark iterations	6000
Base64 SIMD byte path	gated to scalar (CPU autovectorizes scalar; explicit SIMD not beneficial here)
Base64 CN1 encode	84.000 ms
Base64 CN1 decode	90.000 ms
Base64 SIMD encode	107.000 ms
Base64 encode ratio (SIMD/CN1)	1.274x (27.4% slower)
Base64 SIMD decode	103.000 ms
Base64 decode ratio (SIMD/CN1)	1.144x (14.4% slower)
Image encode benchmark iterations	100
Image createMask (SIMD off)	12.000 ms
Image createMask (SIMD on)	5.000 ms
Image createMask ratio (SIMD on/off)	0.417x (58.3% faster)
Image applyMask (SIMD off)	29.000 ms
Image applyMask (SIMD on)	33.000 ms
Image applyMask ratio (SIMD on/off)	1.138x (13.8% slower)
Image modifyAlpha (SIMD off)	45.000 ms
Image modifyAlpha (SIMD on)	30.000 ms
Image modifyAlpha ratio (SIMD on/off)	0.667x (33.3% faster)
Image modifyAlpha removeColor (SIMD off)	41.000 ms
Image modifyAlpha removeColor (SIMD on)	24.000 ms
Image modifyAlpha removeColor ratio (SIMD on/off)	0.585x (41.5% faster)

[shai-almog]

Compared 157 screenshots: 157 matched.

Native Android coverage

• 📊 Line coverage: 9.37% (9331/99611 lines covered) [HTML preview] (artifact android-coverage-report, jacocoAndroidReport/html/index.html)
  • Other counters: instruction 9.10% (47834/525841), branch 3.60% (1793/49819), complexity 3.57% (1898/53096), method 5.52% (1542/27918), class 11.04% (413/3742)
  • Lowest covered classes
    • kotlin.collections.kotlin.collections.ArraysKt___ArraysKt – 0.00% (0/6367 lines covered)
    • kotlin.collections.unsigned.kotlin.collections.unsigned.UArraysKt___UArraysKt – 0.00% (0/2384 lines covered)
    • org.jacoco.agent.rt.internal_0e20598.asm.org.jacoco.agent.rt.internal_0e20598.asm.ClassReader – 0.00% (0/1524 lines covered)
    • kotlin.collections.kotlin.collections.CollectionsKt___CollectionsKt – 0.00% (0/1187 lines covered)
    • org.jacoco.agent.rt.internal_0e20598.asm.org.jacoco.agent.rt.internal_0e20598.asm.MethodWriter – 0.00% (0/922 lines covered)
    • kotlin.sequences.kotlin.sequences.SequencesKt___SequencesKt – 0.00% (0/736 lines covered)
    • com.google.common.cache.com.google.common.cache.LocalCache$Segment – 0.00% (0/726 lines covered)
    • okio.okio.Buffer – 0.00% (0/687 lines covered)
    • kotlin.text.kotlin.text.StringsKt___StringsKt – 0.00% (0/625 lines covered)
    • org.jacoco.agent.rt.internal_0e20598.asm.org.jacoco.agent.rt.internal_0e20598.asm.Frame – 0.00% (0/570 lines covered)

✅ Native Android screenshot tests passed.

Native Android coverage

• 📊 Line coverage: 9.37% (9331/99611 lines covered) [HTML preview] (artifact android-coverage-report, jacocoAndroidReport/html/index.html)
  • Other counters: instruction 9.10% (47834/525841), branch 3.60% (1793/49819), complexity 3.57% (1898/53096), method 5.52% (1542/27918), class 11.04% (413/3742)
  • Lowest covered classes
    • kotlin.collections.kotlin.collections.ArraysKt___ArraysKt – 0.00% (0/6367 lines covered)
    • kotlin.collections.unsigned.kotlin.collections.unsigned.UArraysKt___UArraysKt – 0.00% (0/2384 lines covered)
    • org.jacoco.agent.rt.internal_0e20598.asm.org.jacoco.agent.rt.internal_0e20598.asm.ClassReader – 0.00% (0/1524 lines covered)
    • kotlin.collections.kotlin.collections.CollectionsKt___CollectionsKt – 0.00% (0/1187 lines covered)
    • org.jacoco.agent.rt.internal_0e20598.asm.org.jacoco.agent.rt.internal_0e20598.asm.MethodWriter – 0.00% (0/922 lines covered)
    • kotlin.sequences.kotlin.sequences.SequencesKt___SequencesKt – 0.00% (0/736 lines covered)
    • com.google.common.cache.com.google.common.cache.LocalCache$Segment – 0.00% (0/726 lines covered)
    • okio.okio.Buffer – 0.00% (0/687 lines covered)
    • kotlin.text.kotlin.text.StringsKt___StringsKt – 0.00% (0/625 lines covered)
    • org.jacoco.agent.rt.internal_0e20598.asm.org.jacoco.agent.rt.internal_0e20598.asm.Frame – 0.00% (0/570 lines covered)

Benchmark Results

Detailed Performance Metrics

Metric	Duration
SIMD kernel backend	scalar fallback (no native SIMD)
SIMD int-add (64K x300)	java 288ms / native 100ms = 2.8x speedup
SIMD float-mul (64K x300)	java 118ms / native 71ms = 1.6x speedup
SIMD kernel correctness	PASS (native result == scalar reference)
Base64 payload size	8192 bytes
Base64 benchmark iterations	6000
Base64 SIMD byte path	gated to scalar (CPU autovectorizes scalar; explicit SIMD not beneficial here)
Base64 CN1 encode	61.000 ms
Base64 CN1 decode	70.000 ms
Base64 native encode	318.000 ms
Base64 encode ratio (CN1/native)	0.192x (80.8% faster)
Base64 native decode	236.000 ms
Base64 decode ratio (CN1/native)	0.297x (70.3% faster)
Image encode benchmark status	skipped (SIMD unsupported)

[github-actions]

✅ Continuous Quality Report

Test & Coverage

• ✅ Tests: 10388 total, 0 failed, 64 skipped
• 📊 Line coverage: 63.53% [HTML preview] [Download]
  • Lowest covered classes
    • com.codename1.gaming.level.GameSceneView – 0.00%
    • com.codename1.crash.CrashProtection – 0.00%
    • com.codename1.payment.CommerceManager – 0.00%
    • com.codename1.wearable.WearableMessage – 0.00%
    • com.codename1.ui.plaf.GlassLensBlend – 0.00%
    • com.codename1.vr.VRView – 0.00%
    • com.codename1.appreview.RatingDialog – 0.00%
    • com.codename1.db.ManagedKeys – 0.00%
    • com.codename1.calendar.DefaultCalendarHttpTransport – 0.00%
    • com.codename1.security.Secrets – 0.00%

Static Analysis

• SpotBugs [Report archive]
  • ✅ ByteCodeTranslator: 0 findings (no issues)
  • ✅ android: 0 findings (no issues)
  • ✅ backend: 0 findings (no issues)
  • ✅ build-hint-catalog: 0 findings (no issues)
  • ✅ build-hint-tools: 0 findings (no issues)
  • ✅ codenameone-maven-plugin: 0 findings (no issues)
  • ✅ core-unittests: 0 findings (no issues)
  • ✅ ios: 0 findings (no issues)
• ✅ PMD: 0 findings (no issues) [Report archive]
• ✅ Checkstyle: 0 findings (no issues) [Report archive]

Generated automatically by the PR CI workflow.

[shai-almog]

Compared 172 screenshots: 172 matched.
Native Windows port (x64 / Intel-AMD): full hellocodenameone screenshot suite rendered offscreen with Direct2D/DirectWrite, plus the real benchmarks (base64 native/CN1/SIMD, image createMask/applyMask/modifyAlpha/PNG/JPEG, SSE2 SIMD kernels). Compared against the in-repo baseline in scripts/windows/screenshots.

Benchmark Results

Detailed Performance Metrics

Metric	Duration
SIMD kernel backend	SSE2 (x64) / NEON (arm64) native kernels
SIMD int-add (64K x300)	java 63ms / native 5ms = 12.6x speedup
SIMD float-mul (64K x300)	java 57ms / native 4ms = 14.2x speedup
SIMD kernel correctness	PASS (native result == scalar reference)
Base64 native bridge	unavailable (CN1 + SIMD + image benchmarks only)
Base64 payload size	8192 bytes
Base64 benchmark iterations	6000
Base64 SIMD byte path	gated to scalar (CPU autovectorizes scalar; explicit SIMD not beneficial here)
Base64 CN1 encode	75.000 ms
Base64 CN1 decode	90.000 ms
Base64 SIMD encode	114.000 ms
Base64 encode ratio (SIMD/CN1)	1.520x (52.0% slower)
Base64 SIMD decode	106.000 ms
Base64 decode ratio (SIMD/CN1)	1.178x (17.8% slower)
Image encode benchmark iterations	100
Image createMask (SIMD off)	8.000 ms
Image createMask (SIMD on)	5.000 ms
Image createMask ratio (SIMD on/off)	0.625x (37.5% faster)
Image applyMask (SIMD off)	20.000 ms
Image applyMask (SIMD on)	24.000 ms
Image applyMask ratio (SIMD on/off)	1.200x (20.0% slower)
Image modifyAlpha (SIMD off)	32.000 ms
Image modifyAlpha (SIMD on)	17.000 ms
Image modifyAlpha ratio (SIMD on/off)	0.531x (46.9% faster)
Image modifyAlpha removeColor (SIMD off)	28.000 ms
Image modifyAlpha removeColor (SIMD on)	18.000 ms
Image modifyAlpha removeColor ratio (SIMD on/off)	0.643x (35.7% faster)

ParparVM vs HotSpot (JDK 25): Windows x64

Runner CPU: AMD64 Family 25 Model 1 Stepping 1, AuthenticAMD (baseline windows-x64@amd64-family-25-model-1-authenticamd)

Ratios are ParparVM / JDK 25: below 1.00x ParparVM is faster (time) or smaller (RAM). Median of 5 interleaved, paired rounds; every run's output was verified. A regression is a ratio more than 15% (time) / 15% (RAM) above its baseline in vm/selfhost/perf-baseline.json (more, for a row whose calibration runs were noisier; the file records it), and for RAM also more than 0.05x above it in absolute terms. Both run unpinned on all of the runner's CPUs, with their own default thread counts.

Benchmark	Cores	Time	RAM	Status
hello (WinHelloMain)	4	1.23x (base 1.26x, -2.2%)	0.81x (base 0.81x, +0.8%)	ok
translator (self)	4	0.59x (base 0.61x, -2.3%)	0.54x (base 0.54x, -0.2%)	ok
intArithmetic	4	1.10x (base 1.10x, +0.1%)	0.06x (base 0.06x, -0.6%)	ok
longArithmetic	4	1.08x (base 1.08x, -0.0%)	0.05x (base 0.05x, +0.1%)	ok
mathTranscendental	4	0.79x (base 0.79x, +0.1%)	0.06x (base 0.06x, +6.1%)	ok
arraySequential	4	1.38x (base 1.38x, +0.2%)	0.39x (base 0.39x, +0.1%)	ok
arrayRandom	4	1.05x (base 0.97x, +8.3%)	0.23x (base 0.23x, +0.1%)	ok
objectAllocation	4	5.08x (base 5.02x, +1.2%)	0.41x (base 0.39x, +4.9%)	ok
valueEscape	4	0.10x (base 0.10x, +0.4%)	0.04x (base 0.04x, +0.3%)	ok
hashMapChurn	4	1.80x (base 1.80x, -0.2%)	0.09x (base 0.09x, -0.9%)	ok
stringBuilding	4	1.21x (base 1.21x, +0.2%)	0.32x (base 0.32x, +0.0%)	ok
recursion	4	1.49x (base 1.49x, +0.1%)	0.06x (base 0.06x, -0.6%)	ok
quicksort	4	1.14x (base 1.13x, +0.8%)	0.12x (base 0.12x, -0.3%)	ok

Result: no regression

[shai-almog]

Native fidelity (ios-27-metal)

68 pairs compared -- median 94.6%, worst 74.5% (Toolbar_normal_dark), 25th pct 91.7%, mean 93.3%.

Distribution -- >=99%: 0 | 95-99%: 31 | 90-95%: 25 | <90%: 12

Component	State	Appearance	Material	Fidelity	SSIM	mean delta	vs base	Geometry
Toolbar	normal	dark	glass	74.5%	0.930	7.16	0.0	ok
Button	normal	dark	glass	79.3%	0.938	7.66	0.0	OFF (off 11px)
Button	disabled	dark	glass	79.6%	0.942	7.41	0.0	OFF (off 11px)
RaisedButton	disabled	dark	glass	81.2%	0.954	6.32	0.0	ok
Tabs	normal	dark	glass	86.2%	0.900	6.73	+0.3	ok
Button	pressed	dark	glass	86.3%	0.948	5.27	0.0	OFF (off 11px)
Tabs	normal	light	glass	86.4%	0.895	7.61	+0.3	ok
TextField	normal	light	normal	86.5%	0.950	3.38	0.0	ok
Toolbar	normal	light	glass	86.9%	0.949	3.85	0.0	ok
TextField	disabled	light	normal	89.4%	0.954	2.56	0.0	ok
Button	normal	light	glass	89.5%	0.959	4.54	0.0	OFF (off 11px)
Button	pressed	light	glass	89.5%	0.959	4.33	0.0	OFF (off 11px)
Spinner	normal	dark	normal	90.7%	0.880	3.47	0.0	ok
FlatButton	normal	dark	glass	90.9%	0.981	2.38	0.0	ok
Button	disabled	light	glass	91.6%	0.962	3.21	0.0	OFF (off 11px)
Spinner	normal	light	normal	91.6%	0.910	4.20	0.0	ok
CheckBox	normal	light	normal	91.7%	0.994	0.72	0.0	ok
RadioButton	normal	light	normal	91.7%	0.994	0.72	0.0	ok
Slider	disabled	dark	normal	92.1%	0.943	2.45	0.0	ok
Switch	selected	light	normal	92.1%	0.981	1.47	0.0	ok
CheckBox	disabled	light	normal	92.3%	0.995	0.52	0.0	ok
RadioButton	disabled	light	normal	92.3%	0.995	0.52	0.0	ok
FlatButton	pressed	dark	glass	92.4%	0.982	1.37	0.0	ok
RaisedButton	disabled	light	glass	92.4%	0.960	2.43	0.0	ok
Slider	normal	dark	normal	92.5%	0.944	2.63	0.0	ok
TabsGeom	normal	light	normal	93.1%	0.885	6.48	+0.1	OFF (off 6px)
FlatButton	pressed	light	glass	93.3%	0.981	1.90	0.0	ok
TabsGeom	normal	dark	normal	93.8%	0.893	4.47	+0.1	ok
FlatButton	normal	light	glass	93.9%	0.981	1.88	0.0	ok
Slider	disabled	light	normal	94.0%	0.963	1.75	0.0	OFF (h 4.50)
RaisedButton	pressed	dark	glass	94.1%	0.966	2.29	0.0	ok
RaisedButton	normal	dark	glass	94.1%	0.966	2.32	0.0	ok
RadioButton	selected	light	normal	94.3%	0.990	0.95	0.0	ok
RaisedButton	pressed	light	glass	94.5%	0.963	2.16	0.0	ok
GlassPanelPhoto	normal	dark	glass	94.6%	0.951	13.16	0.0	ok
RaisedButton	normal	light	glass	94.6%	0.963	2.17	0.0	ok
GlassPanelPhoto	normal	light	glass	94.7%	0.951	11.57	0.0	ok
Slider	normal	light	normal	95.1%	0.959	1.56	0.0	ok
CheckBox	disabled	dark	normal	95.4%	0.992	0.25	0.0	ok
RadioButton	disabled	dark	normal	95.4%	0.992	0.25	0.0	ok
Switch	normal	light	normal	95.5%	0.986	0.70	0.0	ok
CheckBox	selected	light	normal	95.8%	0.995	0.65	0.0	ok
CheckBox	normal	dark	normal	95.8%	0.992	0.39	0.0	ok
RadioButton	normal	dark	normal	95.8%	0.992	0.39	0.0	ok
Switch	selected	dark	normal	95.9%	0.985	1.02	0.0	ok
TextField	normal	dark	normal	96.0%	0.937	4.53	0.0	ok
RadioButton	selected	dark	normal	96.1%	0.989	0.67	0.0	ok
Switch	disabled	light	normal	96.4%	0.990	0.53	0.0	ok
TextField	disabled	dark	normal	96.4%	0.940	3.39	0.0	ok
Switch	normal	dark	normal	96.8%	0.986	0.82	0.0	ok
TabOne	normal	light	normal	96.9%	0.948	2.57	0.0	OFF (off 6px, w 0.86)
GlassIcon	normal	dark	normal	97.2%	0.955	3.32	0.0	ok
GlassText	normal	dark	normal	97.3%	0.956	3.27	+0.1	ok
GlassPanelGrey	normal	dark	normal	97.4%	0.959	3.41	0.0	ok
TabOne	normal	dark	normal	97.4%	0.953	1.49	0.0	OFF (w 0.86)
ProgressBar	normal	dark	normal	97.5%	0.997	0.60	0.0	ok
ProgressBar	normal	light	normal	97.6%	0.999	0.61	0.0	ok
GlassPanelRed	normal	dark	normal	97.7%	0.980	6.75	0.0	ok
CheckBox	selected	dark	normal	97.9%	0.995	0.37	0.0	ok
Dialog	normal	dark	normal	97.9%	0.961	1.38	0.0	ok
GlassPanelGrad	normal	dark	normal	97.9%	0.975	4.86	0.0	ok
Dialog	normal	light	normal	98.0%	0.963	1.42	0.0	ok
Switch	disabled	dark	normal	98.0%	0.987	0.41	0.0	ok
GlassIcon	normal	light	normal	98.2%	0.975	3.65	0.0	ok
GlassText	normal	light	normal	98.3%	0.978	3.58	+0.1	ok
GlassPanelGrad	normal	light	normal	98.4%	0.988	5.52	0.0	ok
GlassPanelGrey	normal	light	normal	98.7%	0.987	3.64	0.0	ok
GlassPanelRed	normal	light	normal	98.8%	0.990	4.14	0.0	ok

Geometry vs native (bbox offset / size ratio / center offset / corner radius) -- gated separately from the visual score

Component	State	Appearance	bbox dx,dy (px)	w ratio	h ratio	center off (px)	radius native->cn1 (px)
Button	normal	dark	+0,-6	1.094	1.067	10.9	90.5 -> 45.2
Button	disabled	dark	+0,-6	1.094	1.067	10.9	92.0 -> 45.2
Button	pressed	dark	+0,-6	1.094	1.080	10.8	79.4 -> 45.3
Button	normal	light	+0,+0	1.094	1.000	10.5	45.7 -> 45.3
Button	pressed	light	+0,+0	1.094	1.000	10.5	87.5 -> 45.4
Button	disabled	light	+0,+0	1.094	1.000	10.5	49.1 -> 45.3
TabsGeom	normal	light	+3,+0	0.990	1.069	6.1	79.8 -> 83.6
TabOne	normal	light	+19,+0	0.863	1.069	6.1	80.9 -> 83.6
TabsGeom	normal	dark	+3,+0	0.990	1.064	5.6	98.6 -> 99.1
TabOne	normal	dark	+19,+0	0.863	1.064	5.6	95.2 -> 95.6
Tabs	normal	light	+4,+0	0.988	1.064	5.5	85.9 -> 87.9
GlassIcon	normal	dark	+1,+8	0.998	0.976	5.5	102.3 -> 102.4
GlassText	normal	dark	+1,+8	0.998	0.976	5.5	102.3 -> 102.4
Tabs	normal	dark	+4,+0	0.987	1.058	5.1	92.9 -> 93.7
Toolbar	normal	dark	+6,-3	0.983	1.009	3.5	90.3 -> 55.5
Toolbar	normal	light	+6,+7	0.984	0.926	3.2	70.9 -> 56.1
RaisedButton	disabled	dark	+0,-6	1.009	1.079	2.7	89.6 -> 46.1
Switch	selected	light	+0,+0	1.028	1.026	2.7	-
Slider	disabled	light	+0,-29	1.000	4.500	2.5	-
Switch	normal	light	+0,+0	1.023	1.013	2.1	-
Switch	disabled	light	+0,+0	1.023	1.013	2.1	-
Switch	normal	dark	+0,+0	1.023	1.013	2.1	-
Switch	disabled	dark	+0,+0	1.023	1.013	2.1	-
Spinner	normal	light	+11,-8	0.978	1.052	1.6	-
RaisedButton	disabled	light	+0,+0	1.014	1.011	1.6	71.9 -> 96.6
FlatButton	normal	light	+0,+0	0.980	1.011	1.6	86.2 -> 51.8
Switch	selected	dark	+0,+0	1.017	1.013	1.6	-
Spinner	normal	dark	+12,-8	0.977	1.052	1.5	-
CheckBox	normal	light	+0,+0	0.977	0.977	1.4	-
RadioButton	normal	light	+0,+0	0.977	0.977	1.4	-
RadioButton	selected	light	+0,+0	0.977	0.977	1.4	-
CheckBox	selected	light	+0,+0	0.977	0.977	1.4	-
CheckBox	normal	dark	+0,+0	0.977	0.977	1.4	-
RadioButton	normal	dark	+0,+0	0.977	0.977	1.4	-
RadioButton	selected	dark	+0,+0	0.977	0.977	1.4	-
CheckBox	selected	dark	+0,+0	0.977	0.977	1.4	-
FlatButton	pressed	light	+1,+0	0.973	1.011	1.1	94.6 -> 65.6
RaisedButton	pressed	dark	+0,+0	1.009	1.011	1.1	44.6 -> 44.3
RaisedButton	normal	dark	+0,+0	1.009	1.011	1.1	44.5 -> 44.3
CheckBox	disabled	dark	+1,+0	0.966	0.977	1.1	-
RadioButton	disabled	dark	+1,+0	0.966	0.977	1.1	-
RaisedButton	pressed	light	+0,+0	1.009	1.000	1.0	43.3 -> 44.3
RaisedButton	normal	light	+0,+0	1.009	1.000	1.0	43.3 -> 44.1
FlatButton	normal	dark	+4,+0	0.952	1.011	0.7	86.1 -> 95.7
FlatButton	pressed	dark	+4,+0	0.952	1.011	0.7	94.7 -> 97.9
GlassPanelPhoto	normal	light	+1,+1	0.997	0.995	0.7	35.1 -> 33.5
GlassPanelGrey	normal	light	+1,+1	0.997	0.995	0.7	30.0 -> 27.4
Slider	disabled	dark	+0,-1	1.000	1.015	0.5	-
CheckBox	disabled	light	+1,+0	0.977	0.988	0.5	-
RadioButton	disabled	light	+1,+0	0.977	0.988	0.5	-
Slider	normal	light	+0,+1	1.000	0.964	0.5	-
GlassPanelGrey	normal	dark	+1,+2	0.998	0.986	0.5	101.8 -> 102.4
ProgressBar	normal	dark	+0,+0	1.000	0.900	0.5	-
ProgressBar	normal	light	+0,+0	1.000	0.900	0.5	-
GlassPanelGrad	normal	dark	+1,+0	0.998	0.995	0.5	102.0 -> 102.1
GlassIcon	normal	light	+1,+0	0.998	1.005	0.5	91.7 -> 92.8
GlassText	normal	light	+1,+0	0.998	1.005	0.5	91.7 -> 92.8
GlassPanelGrad	normal	light	+1,+0	0.998	1.005	0.5	24.3 -> 26.8
GlassPanelRed	normal	light	+1,+0	0.998	1.005	0.5	24.4 -> 25.7
TextField	normal	light	+0,+0	1.000	1.000	0.0	13.4 -> 40.0
TextField	disabled	light	+0,+0	1.000	1.000	0.0	13.9 -> 40.4
Slider	normal	dark	+0,+0	1.000	1.000	0.0	-
GlassPanelPhoto	normal	dark	+2,+1	0.996	0.991	0.0	67.3 -> 67.5
TextField	normal	dark	+0,+0	1.000	1.000	0.0	6.4 -> 15.1
TextField	disabled	dark	+0,+0	1.000	1.000	0.0	6.4 -> 15.9
GlassPanelRed	normal	dark	+1,-2	0.998	1.020	0.0	102.2 -> 102.5
Dialog	normal	dark	+0,+0	1.000	1.000	0.0	-
Dialog	normal	light	+0,+0	1.000	1.000	0.0	-

Side-by-side comparisons (worst first)

• Toolbar_normal_dark -- 74.49% fidelity (SSIM 0.9295) (no change)

  
  Left: native widget. Right: Codename One render.

• Button_normal_dark -- 79.28% fidelity (SSIM 0.9380) (no change)

  
  Left: native widget. Right: Codename One render.

• Button_disabled_dark -- 79.63% fidelity (SSIM 0.9423) (no change)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_disabled_dark -- 81.15% fidelity (SSIM 0.9544) (no change)

  
  Left: native widget. Right: Codename One render.

• Tabs_normal_dark -- 86.22% fidelity (SSIM 0.8999) (+0.33 vs baseline)

  
  Left: native widget. Right: Codename One render.

• Button_pressed_dark -- 86.28% fidelity (SSIM 0.9483) (no change)

  
  Left: native widget. Right: Codename One render.

• Tabs_normal_light -- 86.43% fidelity (SSIM 0.8954) (+0.31 vs baseline)

  
  Left: native widget. Right: Codename One render.

• TextField_normal_light -- 86.49% fidelity (SSIM 0.9502) (no change)

  
  Left: native widget. Right: Codename One render.

• Toolbar_normal_light -- 86.94% fidelity (SSIM 0.9488) (no change)

  
  Left: native widget. Right: Codename One render.

• TextField_disabled_light -- 89.39% fidelity (SSIM 0.9540) (no change)

  
  Left: native widget. Right: Codename One render.

• Button_normal_light -- 89.45% fidelity (SSIM 0.9588) (no change)

  
  Left: native widget. Right: Codename One render.

• Button_pressed_light -- 89.45% fidelity (SSIM 0.9588) (no change)

  
  Left: native widget. Right: Codename One render.

• Spinner_normal_dark -- 90.72% fidelity (SSIM 0.8800) (no change)

  
  Left: native widget. Right: Codename One render.

• FlatButton_normal_dark -- 90.88% fidelity (SSIM 0.9805) (no change)

  
  Left: native widget. Right: Codename One render.

• Button_disabled_light -- 91.57% fidelity (SSIM 0.9621) (no change)

  
  Left: native widget. Right: Codename One render.

• Spinner_normal_light -- 91.58% fidelity (SSIM 0.9097) (no change)

  
  Left: native widget. Right: Codename One render.

• CheckBox_normal_light -- 91.66% fidelity (SSIM 0.9935) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_normal_light -- 91.66% fidelity (SSIM 0.9935) (no change)

  
  Left: native widget. Right: Codename One render.

• Slider_disabled_dark -- 92.13% fidelity (SSIM 0.9434) (no change)

  
  Left: native widget. Right: Codename One render.

• Switch_selected_light -- 92.13% fidelity (SSIM 0.9806) (no change)

  
  Left: native widget. Right: Codename One render.

• CheckBox_disabled_light -- 92.31% fidelity (SSIM 0.9948) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_disabled_light -- 92.31% fidelity (SSIM 0.9948) (no change)

  
  Left: native widget. Right: Codename One render.

• FlatButton_pressed_dark -- 92.38% fidelity (SSIM 0.9821) (no change)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_disabled_light -- 92.40% fidelity (SSIM 0.9596) (no change)

  
  Left: native widget. Right: Codename One render.

• Slider_normal_dark -- 92.52% fidelity (SSIM 0.9441) (no change)

  
  Left: native widget. Right: Codename One render.

• TabsGeom_normal_light -- 93.13% fidelity (SSIM 0.8851) (+0.14 vs baseline)

  
  Left: native widget. Right: Codename One render.

• FlatButton_pressed_light -- 93.29% fidelity (SSIM 0.9811) (no change)

  
  Left: native widget. Right: Codename One render.

• TabsGeom_normal_dark -- 93.81% fidelity (SSIM 0.8925) (+0.14 vs baseline)

  
  Left: native widget. Right: Codename One render.

• FlatButton_normal_light -- 93.91% fidelity (SSIM 0.9811) (no change)

  
  Left: native widget. Right: Codename One render.

• Slider_disabled_light -- 93.96% fidelity (SSIM 0.9625) (no change)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_pressed_dark -- 94.08% fidelity (SSIM 0.9659) (no change)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_normal_dark -- 94.13% fidelity (SSIM 0.9660) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_selected_light -- 94.26% fidelity (SSIM 0.9903) (no change)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_pressed_light -- 94.53% fidelity (SSIM 0.9633) (no change)

  
  Left: native widget. Right: Codename One render.

• GlassPanelPhoto_normal_dark -- 94.60% fidelity (SSIM 0.9505) (no change)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_normal_light -- 94.64% fidelity (SSIM 0.9632) (no change)

  
  Left: native widget. Right: Codename One render.

• GlassPanelPhoto_normal_light -- 94.66% fidelity (SSIM 0.9507) (no change)

  
  Left: native widget. Right: Codename One render.

• Slider_normal_light -- 95.09% fidelity (SSIM 0.9588) (no change)

  
  Left: native widget. Right: Codename One render.

• CheckBox_disabled_dark -- 95.41% fidelity (SSIM 0.9924) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_disabled_dark -- 95.41% fidelity (SSIM 0.9924) (no change)

  
  Left: native widget. Right: Codename One render.

• Switch_normal_light -- 95.51% fidelity (SSIM 0.9863) (no change)

  
  Left: native widget. Right: Codename One render.

• CheckBox_selected_light -- 95.80% fidelity (SSIM 0.9951) (no change)

  
  Left: native widget. Right: Codename One render.

• CheckBox_normal_dark -- 95.84% fidelity (SSIM 0.9922) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_normal_dark -- 95.84% fidelity (SSIM 0.9922) (no change)

  
  Left: native widget. Right: Codename One render.

• Switch_selected_dark -- 95.90% fidelity (SSIM 0.9850) (no change)

  
  Left: native widget. Right: Codename One render.

• TextField_normal_dark -- 96.00% fidelity (SSIM 0.9370) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_selected_dark -- 96.13% fidelity (SSIM 0.9894) (no change)

  
  Left: native widget. Right: Codename One render.

• Switch_disabled_light -- 96.35% fidelity (SSIM 0.9896) (no change)

  
  Left: native widget. Right: Codename One render.

• TextField_disabled_dark -- 96.35% fidelity (SSIM 0.9395) (no change)

  
  Left: native widget. Right: Codename One render.

• Switch_normal_dark -- 96.80% fidelity (SSIM 0.9855) (no change)

  
  Left: native widget. Right: Codename One render.

• TabOne_normal_light -- 96.90% fidelity (SSIM 0.9480) (no change)

  
  Left: native widget. Right: Codename One render.

• GlassIcon_normal_dark -- 97.18% fidelity (SSIM 0.9547) (no change)

  
  Left: native widget. Right: Codename One render.

• GlassText_normal_dark -- 97.27% fidelity (SSIM 0.9563) (+0.06 vs baseline)

  
  Left: native widget. Right: Codename One render.

• GlassPanelGrey_normal_dark -- 97.35% fidelity (SSIM 0.9588) (no change)

  
  Left: native widget. Right: Codename One render.

• TabOne_normal_dark -- 97.36% fidelity (SSIM 0.9531) (no change)

  
  Left: native widget. Right: Codename One render.

• ProgressBar_normal_dark -- 97.47% fidelity (SSIM 0.9973) (no change)

  
  Left: native widget. Right: Codename One render.

• ProgressBar_normal_light -- 97.60% fidelity (SSIM 0.9989) (no change)

  
  Left: native widget. Right: Codename One render.

• GlassPanelRed_normal_dark -- 97.73% fidelity (SSIM 0.9795) (no change)

  
  Left: native widget. Right: Codename One render.

• CheckBox_selected_dark -- 97.85% fidelity (SSIM 0.9945) (no change)

  
  Left: native widget. Right: Codename One render.

• Dialog_normal_dark -- 97.86% fidelity (SSIM 0.9614) (no change)

  
  Left: native widget. Right: Codename One render.

• GlassPanelGrad_normal_dark -- 97.91% fidelity (SSIM 0.9752) (no change)

  
  Left: native widget. Right: Codename One render.

• Dialog_normal_light -- 97.95% fidelity (SSIM 0.9634) (no change)

  
  Left: native widget. Right: Codename One render.

• Switch_disabled_dark -- 98.01% fidelity (SSIM 0.9869) (no change)

  
  Left: native widget. Right: Codename One render.

• GlassIcon_normal_light -- 98.16% fidelity (SSIM 0.9750) (no change)

  
  Left: native widget. Right: Codename One render.

• GlassText_normal_light -- 98.31% fidelity (SSIM 0.9779) (+0.06 vs baseline)

  
  Left: native widget. Right: Codename One render.

• GlassPanelGrad_normal_light -- 98.41% fidelity (SSIM 0.9876) (no change)

  
  Left: native widget. Right: Codename One render.

• GlassPanelGrey_normal_light -- 98.70% fidelity (SSIM 0.9865) (no change)

  
  Left: native widget. Right: Codename One render.

• GlassPanelRed_normal_light -- 98.78% fidelity (SSIM 0.9900) (no change)

  
  Left: native widget. Right: Codename One render.

[shai-almog]

Compared 172 screenshots: 172 matched.
Native Linux port (x64), GTK3/Cairo/Pango, ParparVM bytecode-to-C (no JVM): the hellocodenameone screenshot suite rendered by a native ELF built + run on the GitHub x64 runner. Baseline: scripts/linux/screenshots.

ParparVM vs HotSpot (JDK 25): Linux x64

Runner CPU: AMD EPYC 7763 64-Core Processor (baseline linux-x64@amd-epyc-7763-64-core-processor)

Ratios are ParparVM / JDK 25: below 1.00x ParparVM is faster (time) or smaller (RAM). Median of 5 interleaved, paired rounds; every run's output was verified. A regression is a ratio more than 15% (time) / 15% (RAM) above its baseline in vm/selfhost/perf-baseline.json (more, for a row whose calibration runs were noisier; the file records it), and for RAM also more than 0.05x above it in absolute terms. Both run unpinned on all of the runner's CPUs, with their own default thread counts.

Benchmark	Cores	Time	RAM	Status
hello (LinuxHelloMain)	4	0.83x (base 0.85x, -2.2%)	0.81x (base 0.84x, -3.6%)	ok
translator (self)	4	0.43x (base 0.48x, -12.1%)	0.52x (base 0.52x, -0.7%)	ok
intArithmetic	4	1.12x (base 1.12x, +0.6%)	0.05x (base 0.06x, -2.6%)	ok
longArithmetic	4	1.08x (base 1.08x, +0.0%)	0.05x (base 0.05x, +0.9%)	ok
mathTranscendental	4	1.08x (base 1.08x, +0.0%)	0.08x (base 0.07x, +3.1%)	ok
arraySequential	4	2.48x (base 2.00x, +23.5%)	0.38x (base 0.36x, +4.7%)	ok
arrayRandom	4	1.18x (base 0.91x, +29.8%)	0.21x (base 0.21x, -0.2%)	ok
objectAllocation	4	4.73x (base 5.01x, -5.6%)	0.36x (base 0.37x, -1.6%)	ok
valueEscape	4	0.10x (base 0.10x, -0.3%)	0.06x (base 0.04x, +33.4%)	ok
hashMapChurn	4	1.48x (base 1.48x, -0.3%)	0.10x (base 0.09x, +6.5%)	ok
stringBuilding	4	1.32x (base 1.39x, -5.2%)	0.26x (base 0.26x, +0.4%)	ok
recursion	4	1.26x (base 1.25x, +0.0%)	0.08x (base 0.08x, +0.4%)	ok
quicksort	4	1.08x (base 1.07x, +0.4%)	0.11x (base 0.11x, -1.8%)	ok

Result: no regression

[shai-almog]

Compared 172 screenshots: 172 matched.
Native Linux port (arm64), GTK3/Cairo/Pango, ParparVM bytecode-to-C (no JVM): the hellocodenameone screenshot suite rendered by a native ELF built + run on the GitHub arm64 runner. Baseline: scripts/linux/screenshots-arm.

ParparVM vs HotSpot (JDK 25): Linux arm64

Runner CPU: Neoverse-N2 (baseline linux-arm64@neoverse-n2)

Ratios are ParparVM / JDK 25: below 1.00x ParparVM is faster (time) or smaller (RAM). Median of 5 interleaved, paired rounds; every run's output was verified. A regression is a ratio more than 15% (time) / 15% (RAM) above its baseline in vm/selfhost/perf-baseline.json (more, for a row whose calibration runs were noisier; the file records it), and for RAM also more than 0.05x above it in absolute terms. Both run unpinned on all of the runner's CPUs, with their own default thread counts.

Benchmark	Cores	Time	RAM	Status
hello (LinuxHelloMain)	4	0.92x (base 0.93x, -1.5%)	0.88x (base 0.87x, +1.7%)	ok
translator (self)	4	0.62x (base 0.62x, -0.9%)	0.54x (base 0.54x, +0.2%)	ok
intArithmetic	4	1.04x (base 1.04x, -0.1%)	0.03x (base 0.03x, +0.2%)	ok
longArithmetic	4	0.79x (base 0.79x, -0.1%)	0.03x (base 0.03x, +1.1%)	ok
mathTranscendental	4	1.10x (base 1.10x, -0.0%)	0.03x (base 0.03x, +1.6%)	ok
arraySequential	4	0.35x (base 0.36x, -2.5%)	0.37x (base 0.37x, -0.1%)	ok
arrayRandom	4	0.94x (base 0.94x, +0.0%)	0.20x (base 0.20x, +0.2%)	ok
objectAllocation	4	3.44x (base 3.04x, +13.0%)	0.23x (base 0.24x, -3.0%)	ok
valueEscape	4	0.51x (base 0.51x, -0.1%)	0.03x (base 0.03x, +0.8%)	ok
hashMapChurn	4	0.85x (base 0.84x, +0.7%)	0.11x (base 0.12x, -5.7%)	ok
stringBuilding	4	1.38x (base 1.36x, +1.6%)	0.26x (base 0.26x, -0.3%)	ok
recursion	4	1.43x (base 1.43x, -0.0%)	0.03x (base 0.04x, -0.3%)	ok
quicksort	4	0.99x (base 0.99x, -0.2%)	0.09x (base 0.09x, +0.1%)	ok

Result: no regression

[shai-almog]

Compared 172 screenshots: 172 matched.
Native Windows port (arm64 / Apple Silicon - Arm): full hellocodenameone screenshot suite rendered offscreen with Direct2D/DirectWrite, plus the real benchmarks (base64 native/CN1/SIMD, image createMask/applyMask/modifyAlpha/PNG/JPEG, NEON SIMD kernels). Compared against the in-repo baseline in scripts/windows/screenshots.

Benchmark Results

Detailed Performance Metrics

Metric	Duration
SIMD kernel backend	SSE2 (x64) / NEON (arm64) native kernels
SIMD int-add (64K x300)	java 49ms / native 2ms = 24.5x speedup
SIMD float-mul (64K x300)	java 48ms / native 3ms = 16.0x speedup
SIMD kernel correctness	PASS (native result == scalar reference)
Base64 native bridge	unavailable (CN1 + SIMD + image benchmarks only)
Base64 payload size	8192 bytes
Base64 benchmark iterations	6000
Base64 SIMD byte path	gated to scalar (CPU autovectorizes scalar; explicit SIMD not beneficial here)
Base64 CN1 encode	60.000 ms
Base64 CN1 decode	70.000 ms
Base64 SIMD encode	78.000 ms
Base64 encode ratio (SIMD/CN1)	1.300x (30.0% slower)
Base64 SIMD decode	68.000 ms
Base64 decode ratio (SIMD/CN1)	0.971x (2.9% faster)
Image encode benchmark iterations	100
Image createMask (SIMD off)	8.000 ms
Image createMask (SIMD on)	3.000 ms
Image createMask ratio (SIMD on/off)	0.375x (62.5% faster)
Image applyMask (SIMD off)	13.000 ms
Image applyMask (SIMD on)	15.000 ms
Image applyMask ratio (SIMD on/off)	1.154x (15.4% slower)
Image modifyAlpha (SIMD off)	16.000 ms
Image modifyAlpha (SIMD on)	10.000 ms
Image modifyAlpha ratio (SIMD on/off)	0.625x (37.5% faster)
Image modifyAlpha removeColor (SIMD off)	20.000 ms
Image modifyAlpha removeColor (SIMD on)	12.000 ms
Image modifyAlpha removeColor ratio (SIMD on/off)	0.600x (40.0% faster)

ParparVM vs HotSpot (JDK 25): Windows arm64

Runner CPU: ARMv8 (64-bit) Family 8 Model D49 Revision 0, MICROSOFT CORPORATION (baseline windows-arm64@armv8-64-bit-family-8-model-d49-microsoft-corporation)

Ratios are ParparVM / JDK 25: below 1.00x ParparVM is faster (time) or smaller (RAM). Median of 5 interleaved, paired rounds; every run's output was verified. A regression is a ratio more than 15% (time) / 15% (RAM) above its baseline in vm/selfhost/perf-baseline.json (more, for a row whose calibration runs were noisier; the file records it), and for RAM also more than 0.05x above it in absolute terms. Both run unpinned on all of the runner's CPUs, with their own default thread counts.

Benchmark	Cores	Time	RAM	Status
hello (WinHelloMain)	4	1.09x (base 1.11x, -1.3%)	0.89x (base 0.90x, -1.4%)	ok
translator (self)	4	0.73x (base 0.75x, -2.2%)	0.51x (base 0.54x, -5.3%)	ok
intArithmetic	4	1.04x (base 1.04x, +0.0%)	0.06x (base 0.06x, -0.1%)	ok
longArithmetic	4	0.80x (base 0.80x, +0.1%)	0.06x (base 0.06x, +0.3%)	ok
mathTranscendental	4	0.72x (base 0.72x, -0.0%)	0.06x (base 0.06x, +0.0%)	ok
arraySequential	4	0.38x (base 0.39x, -3.5%)	0.39x (base 0.39x, -0.3%)	ok
arrayRandom	4	0.93x (base 0.94x, -0.4%)	0.23x (base 0.23x, -0.1%)	ok
objectAllocation	4	2.80x (base 2.73x, +2.3%)	0.45x (base 0.46x, -2.7%)	ok
valueEscape	4	0.76x (base 0.76x, +0.1%)	0.05x (base 0.05x, +0.1%)	ok
hashMapChurn	4	0.99x (base 0.98x, +0.9%)	0.12x (base 0.12x, +1.8%)	ok
stringBuilding	4	1.44x (base 1.43x, +1.0%)	0.27x (base 0.27x, -0.3%)	ok
recursion	4	1.46x (base 1.46x, -0.0%)	0.06x (base 0.07x, -0.8%)	ok
quicksort	4	1.00x (base 1.00x, -0.3%)	0.12x (base 0.12x, -0.3%)	ok

Result: no regression

[github-actions]

✅ ByteCodeTranslator Quality Report

Test & Coverage

• ✅ Tests: 740 total, 0 failed, 57 skipped

Benchmark Results

• Execution Time: 26717 ms

• Hotspots (Top 20 sampled methods):

  • 7.46% com.codename1.tools.translator.IteratorEscape.ctorOnlyStoresParamsIntoThis (175 samples)
  • 6.91% java.util.ArrayList.indexOf (162 samples)
  • 4.86% com.codename1.tools.translator.BytecodeMethod.equals (114 samples)
  • 4.73% java.lang.StringBuilder.append (111 samples)
  • 3.37% org.objectweb.asm.tree.analysis.Frame.merge (79 samples)
  • 2.35% com.codename1.tools.translator.BytecodeMethod.optimize (55 samples)
  • 2.26% com.codename1.tools.translator.IteratorEscape.mangle (53 samples)
  • 2.17% com.codename1.tools.translator.ByteCodeClass.hasDeclaredMethod (51 samples)
  • 1.83% com.codename1.tools.translator.IteratorEscape.walk (43 samples)
  • 1.79% java.lang.String.equals (42 samples)
  • 1.62% com.codename1.tools.translator.JavascriptReachability.enqueueResolved (38 samples)
  • 1.58% com.codename1.tools.translator.bytecodes.Invoke.resolveDirectTarget (37 samples)
  • 1.49% java.util.HashMap.hash (35 samples)
  • 1.32% java.util.HashMap.putVal (31 samples)
  • 1.32% com.codename1.tools.translator.DeadFieldElimination.run (31 samples)
  • 1.24% java.lang.System.identityHashCode (29 samples)
  • 1.15% java.lang.Object.hashCode (27 samples)
  • 1.15% org.objectweb.asm.tree.analysis.Analyzer.analyze (27 samples)
  • 1.15% com.codename1.tools.translator.BytecodeMethod.appendMethodSignatureSuffixFromDesc (27 samples)
  • 1.11% java.util.TreeMap.getEntry (26 samples)

• ⚠️ Coverage report not generated.

Static Analysis

• ✅ SpotBugs: no findings (report was not generated by the build).
• ⚠️ PMD report not generated.
• ⚠️ Checkstyle report not generated.

Generated automatically by the PR CI workflow.

[shai-almog]

Native fidelity (iOS Modern, Metal)

68 pairs compared -- median 95.0%, worst 83.5% (Tabs_normal_dark), 25th pct 92.5%, mean 94.6%.

Distribution -- >=99%: 3 | 95-99%: 31 | 90-95%: 29 | <90%: 5

Component	State	Appearance	Material	Fidelity	SSIM	mean delta	vs base	Geometry
Tabs	normal	dark	glass	83.5%	0.884	11.66	0.0	ok
Tabs	normal	light	glass	86.4%	0.896	8.00	0.0	ok
Toolbar	normal	light	glass	87.6%	0.951	4.24	0.0	ok
Toolbar	normal	dark	glass	87.7%	0.950	3.69	0.0	ok
Button	pressed	dark	glass	89.9%	0.958	4.21	0.0	OFF (off 12px, w 1.10)
TextField	normal	light	normal	90.0%	0.958	2.78	-0.4	ok
Spinner	normal	dark	normal	90.8%	0.881	3.39	-0.7	ok
TextField	disabled	light	normal	91.1%	0.962	2.24	-0.2	ok
Spinner	normal	light	normal	91.6%	0.910	4.11	-0.2	ok
RaisedButton	disabled	light	glass	91.8%	0.961	3.09	+0.2	ok
Button	normal	dark	glass	91.8%	0.958	3.52	0.0	OFF (off 12px, w 1.10)
Slider	disabled	dark	normal	92.1%	0.943	2.45	-0.3	ok
Switch	selected	light	normal	92.1%	0.981	1.47	0.0	ok
CheckBox	normal	light	normal	92.2%	0.994	0.68	0.0	ok
RadioButton	normal	light	normal	92.2%	0.994	0.68	0.0	ok
FlatButton	normal	dark	glass	92.2%	0.983	2.21	+4.3	ok
Button	normal	light	glass	92.4%	0.961	3.65	0.0	OFF (off 12px, w 1.10)
Slider	normal	dark	normal	92.5%	0.944	2.63	-0.2	ok
RaisedButton	disabled	dark	glass	92.7%	0.965	2.72	+1.3	ok
CheckBox	disabled	light	normal	92.7%	0.995	0.50	0.0	ok
RadioButton	disabled	light	normal	92.7%	0.995	0.50	0.0	ok
Button	pressed	light	glass	92.9%	0.962	3.29	0.0	OFF (off 12px, w 1.10)
FlatButton	pressed	dark	glass	92.9%	0.985	1.26	+2.3	ok
TabsGeom	normal	dark	normal	93.0%	0.892	8.75	0.0	ok
TabsGeom	normal	light	normal	93.0%	0.886	7.09	0.0	ok
FlatButton	pressed	light	glass	93.2%	0.982	1.90	+4.3	ok
Button	disabled	dark	glass	93.5%	0.962	2.47	0.0	OFF (off 12px, w 1.10)
Slider	disabled	light	normal	94.0%	0.963	1.75	-0.1	OFF (h 4.50)
FlatButton	normal	light	glass	94.2%	0.983	1.79	+1.3	ok
Button	disabled	light	glass	94.4%	0.964	2.36	0.0	OFF (off 12px, w 1.10)
RaisedButton	pressed	dark	glass	94.6%	0.965	2.07	+1.5	ok
RaisedButton	normal	dark	glass	94.6%	0.966	2.08	+1.7	ok
RaisedButton	pressed	light	glass	94.8%	0.967	2.22	+2.0	ok
RadioButton	selected	light	normal	94.8%	0.992	0.86	0.0	ok
RaisedButton	normal	light	glass	95.0%	0.967	2.19	+2.4	ok
Slider	normal	light	normal	95.1%	0.959	1.56	0.0	ok
Switch	normal	light	normal	95.5%	0.986	0.70	0.0	ok
CheckBox	disabled	dark	normal	95.8%	0.993	0.25	0.0	ok
RadioButton	disabled	dark	normal	95.8%	0.993	0.25	0.0	ok
CheckBox	selected	light	normal	95.8%	0.994	0.67	0.0	ok
Switch	selected	dark	normal	95.9%	0.985	1.02	0.0	ok
Switch	disabled	light	normal	96.4%	0.990	0.53	0.0	ok
CheckBox	normal	dark	normal	96.5%	0.993	0.35	0.0	ok
RadioButton	normal	dark	normal	96.5%	0.993	0.35	0.0	ok
GlassPanelPhoto	normal	light	glass	96.7%	0.980	7.95	+0.6	ok
GlassPanelPhoto	normal	dark	glass	96.8%	0.983	8.78	+0.6	ok
TabOne	normal	dark	normal	96.8%	0.953	4.44	+0.7	ok
Switch	normal	dark	normal	96.8%	0.986	0.82	0.0	ok
RadioButton	selected	dark	normal	96.8%	0.991	0.57	0.0	ok
TextField	normal	dark	normal	96.9%	0.949	3.30	-0.2	ok
TextField	disabled	dark	normal	97.2%	0.953	2.37	-0.2	ok
ProgressBar	normal	dark	normal	97.5%	0.997	0.60	+3.0	ok
TabOne	normal	light	normal	97.5%	0.961	2.90	+1.9	ok
ProgressBar	normal	light	normal	97.6%	0.999	0.61	+2.2	ok
CheckBox	selected	dark	normal	97.8%	0.993	0.38	0.0	ok
Dialog	normal	dark	normal	97.9%	0.961	1.38	+0.9	ok
Dialog	normal	light	normal	98.0%	0.963	1.42	+0.9	ok
Switch	disabled	dark	normal	98.0%	0.987	0.41	+2.5	ok
GlassIcon	normal	dark	normal	98.6%	0.984	3.55	0.0	ok
GlassText	normal	dark	normal	98.6%	0.985	3.48	0.0	ok
GlassIcon	normal	light	normal	98.7%	0.986	3.54	0.0	ok
GlassText	normal	light	normal	98.7%	0.987	3.54	0.0	ok
GlassPanelGrad	normal	light	normal	98.9%	0.994	4.38	+0.7	ok
GlassPanelGrad	normal	dark	normal	99.0%	0.993	3.84	+0.5	ok
GlassPanelGrey	normal	dark	normal	99.0%	0.992	3.30	+0.6	ok
GlassPanelGrey	normal	light	normal	99.1%	0.994	3.29	+0.7	ok
GlassPanelRed	normal	dark	normal	99.1%	0.993	3.22	+0.5	ok
GlassPanelRed	normal	light	normal	99.1%	0.994	3.49	+0.7	ok

Geometry vs native (bbox offset / size ratio / center offset / corner radius) -- gated separately from the visual score

Component	State	Appearance	bbox dx,dy (px)	w ratio	h ratio	center off (px)	radius native->cn1 (px)
Button	pressed	dark	+0,+0	1.104	1.000	11.5	45.4 -> 45.3
Button	normal	dark	+0,+0	1.104	1.000	11.5	45.8 -> 45.2
Button	normal	light	+0,+0	1.104	1.000	11.5	44.5 -> 45.3
Button	pressed	light	+0,+0	1.104	1.000	11.5	48.1 -> 45.4
Button	disabled	dark	+0,+0	1.104	1.000	11.5	45.1 -> 45.2
Button	disabled	light	+0,+0	1.104	1.000	11.5	44.0 -> 45.3
TabOne	normal	dark	-3,+0	1.007	0.948	4.9	80.3 -> 77.3
TabOne	normal	light	-3,+0	1.007	0.948	4.9	79.1 -> 77.0
Toolbar	normal	light	+4,+7	0.987	0.926	3.5	62.5 -> 56.1
Toolbar	normal	dark	+4,+7	0.987	0.919	3.2	60.5 -> 55.5
Switch	selected	light	+0,+0	1.028	1.026	2.7	-
RaisedButton	disabled	dark	+0,+0	1.024	1.011	2.6	49.8 -> 46.1
Slider	disabled	light	+0,-29	1.000	4.500	2.5	-
CheckBox	disabled	light	+1,-3	1.000	1.023	2.2	-
RadioButton	disabled	light	+1,-3	1.000	1.023	2.2	-
CheckBox	disabled	dark	+1,-3	1.000	1.023	2.2	-
RadioButton	disabled	dark	+1,-3	1.000	1.023	2.2	-
RaisedButton	disabled	light	+0,+0	1.019	1.011	2.1	54.1 -> 96.6
RaisedButton	pressed	dark	+0,+0	1.019	1.011	2.1	44.5 -> 44.3
RaisedButton	normal	dark	+0,+0	1.019	1.011	2.1	44.4 -> 44.3
RaisedButton	pressed	light	+0,+0	1.019	1.011	2.1	44.7 -> 44.3
RaisedButton	normal	light	+0,+0	1.019	1.011	2.1	44.5 -> 44.1
Switch	normal	light	+0,+0	1.023	1.013	2.1	-
Switch	disabled	light	+0,+0	1.023	1.013	2.1	-
Switch	normal	dark	+0,+0	1.023	1.013	2.1	-
Switch	disabled	dark	+0,+0	1.023	1.013	2.1	-
CheckBox	normal	dark	+0,-2	1.000	1.000	2.0	-
RadioButton	normal	dark	+0,-2	1.000	1.000	2.0	-
RadioButton	selected	dark	+0,-2	1.000	1.000	2.0	-
CheckBox	selected	dark	+0,-2	1.000	1.000	2.0	-
Tabs	normal	dark	+9,+0	0.973	1.012	1.8	79.7 -> 80.7
Tabs	normal	light	+9,+0	0.973	1.012	1.8	79.2 -> 80.3
TabsGeom	normal	dark	+9,+0	0.973	1.012	1.8	80.5 -> 80.9
TabsGeom	normal	light	+9,+0	0.973	1.012	1.8	79.3 -> 80.6
FlatButton	normal	dark	+4,+0	0.966	1.011	1.6	91.8 -> 95.7
FlatButton	pressed	dark	+4,+0	0.966	1.011	1.6	95.3 -> 97.9
Switch	selected	dark	+0,+0	1.017	1.013	1.6	-
CheckBox	normal	light	+0,-2	1.000	1.011	1.5	-
RadioButton	normal	light	+0,-2	1.000	1.011	1.5	-
RadioButton	selected	light	+0,-2	1.000	1.011	1.5	-
CheckBox	selected	light	+0,-2	1.000	1.011	1.5	-
Spinner	normal	light	+11,-9	0.978	1.055	1.1	-
GlassIcon	normal	dark	+0,+1	0.999	1.000	1.1	92.1 -> 91.5
GlassText	normal	dark	+0,+1	0.999	1.000	1.1	92.1 -> 91.5
Spinner	normal	dark	+12,-9	0.977	1.055	1.0	-
GlassPanelGrey	normal	dark	+0,+1	1.000	1.000	1.0	26.4 -> 26.9
TextField	disabled	light	+0,+1	0.999	0.996	0.7	13.9 -> 38.7
FlatButton	normal	light	+0,+0	0.993	1.011	0.7	91.9 -> 51.8
Slider	disabled	dark	+0,-1	1.000	1.015	0.5	-
FlatButton	pressed	light	+1,+0	0.986	1.011	0.5	95.4 -> 65.6
Slider	normal	light	+0,+1	1.000	0.964	0.5	-
GlassPanelPhoto	normal	light	+0,+0	1.000	1.005	0.5	25.6 -> 31.4
GlassPanelPhoto	normal	dark	+0,+0	1.000	1.005	0.5	23.0 -> 27.0
ProgressBar	normal	dark	+0,+0	1.000	0.900	0.5	-
ProgressBar	normal	light	+0,+0	1.000	0.900	0.5	-
GlassIcon	normal	light	+0,+0	1.000	1.005	0.5	91.6 -> 92.3
GlassText	normal	light	+0,+0	1.000	1.005	0.5	91.6 -> 92.3
GlassPanelGrad	normal	light	+0,+0	1.000	1.005	0.5	22.3 -> 25.9
GlassPanelGrad	normal	dark	+1,+1	0.998	0.995	0.5	25.7 -> 22.5
GlassPanelGrey	normal	light	+0,+0	1.000	1.005	0.5	22.4 -> 26.0
GlassPanelRed	normal	dark	+1,+1	0.998	0.995	0.5	26.6 -> 22.8
GlassPanelRed	normal	light	+0,+0	1.000	1.005	0.5	22.1 -> 26.1
TextField	normal	light	+0,+0	1.000	1.000	0.0	13.4 -> 40.5
Slider	normal	dark	+0,+0	1.000	1.000	0.0	-
TextField	normal	dark	+0,+0	1.000	1.000	0.0	6.4 -> 15.1
TextField	disabled	dark	+0,+0	1.000	1.000	0.0	6.4 -> 15.9
Dialog	normal	dark	+0,+0	1.000	1.000	0.0	-
Dialog	normal	light	+0,+0	1.000	1.000	0.0	-

Side-by-side comparisons (worst first)

• Tabs_normal_dark -- 83.45% fidelity (SSIM 0.8842) (no change)

  
  Left: native widget. Right: Codename One render.

• Tabs_normal_light -- 86.44% fidelity (SSIM 0.8961) (no change)

  
  Left: native widget. Right: Codename One render.

• Toolbar_normal_light -- 87.64% fidelity (SSIM 0.9511) (no change)

  
  Left: native widget. Right: Codename One render.

• Toolbar_normal_dark -- 87.70% fidelity (SSIM 0.9495) (no change)

  
  Left: native widget. Right: Codename One render.

• Button_pressed_dark -- 89.93% fidelity (SSIM 0.9576) (no change)

  
  Left: native widget. Right: Codename One render.

• TextField_normal_light -- 90.03% fidelity (SSIM 0.9576) (-0.37 vs baseline)

  
  Left: native widget. Right: Codename One render.

• Spinner_normal_dark -- 90.78% fidelity (SSIM 0.8814) (-0.69 vs baseline)

  
  Left: native widget. Right: Codename One render.

• TextField_disabled_light -- 91.13% fidelity (SSIM 0.9619) (-0.22 vs baseline)

  
  Left: native widget. Right: Codename One render.

• Spinner_normal_light -- 91.58% fidelity (SSIM 0.9099) (-0.21 vs baseline)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_disabled_light -- 91.76% fidelity (SSIM 0.9613) (+0.15 vs baseline)

  
  Left: native widget. Right: Codename One render.

• Button_normal_dark -- 91.84% fidelity (SSIM 0.9583) (no change)

  
  Left: native widget. Right: Codename One render.

• Slider_disabled_dark -- 92.13% fidelity (SSIM 0.9434) (-0.31 vs baseline)

  
  Left: native widget. Right: Codename One render.

• Switch_selected_light -- 92.13% fidelity (SSIM 0.9806) (no change)

  
  Left: native widget. Right: Codename One render.

• CheckBox_normal_light -- 92.16% fidelity (SSIM 0.9938) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_normal_light -- 92.16% fidelity (SSIM 0.9938) (no change)

  
  Left: native widget. Right: Codename One render.

• FlatButton_normal_dark -- 92.21% fidelity (SSIM 0.9833) (+4.25 vs baseline)

  
  Left: native widget. Right: Codename One render.

• Button_normal_light -- 92.37% fidelity (SSIM 0.9609) (no change)

  
  Left: native widget. Right: Codename One render.

• Slider_normal_dark -- 92.52% fidelity (SSIM 0.9441) (-0.22 vs baseline)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_disabled_dark -- 92.65% fidelity (SSIM 0.9653) (+1.25 vs baseline)

  
  Left: native widget. Right: Codename One render.

• CheckBox_disabled_light -- 92.71% fidelity (SSIM 0.9953) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_disabled_light -- 92.71% fidelity (SSIM 0.9953) (no change)

  
  Left: native widget. Right: Codename One render.

• Button_pressed_light -- 92.88% fidelity (SSIM 0.9617) (no change)

  
  Left: native widget. Right: Codename One render.

• FlatButton_pressed_dark -- 92.90% fidelity (SSIM 0.9849) (+2.31 vs baseline)

  
  Left: native widget. Right: Codename One render.

• TabsGeom_normal_dark -- 93.02% fidelity (SSIM 0.8921) (+0.01 vs baseline)

  
  Left: native widget. Right: Codename One render.

• TabsGeom_normal_light -- 93.02% fidelity (SSIM 0.8861) (no change)

  
  Left: native widget. Right: Codename One render.

• FlatButton_pressed_light -- 93.20% fidelity (SSIM 0.9819) (+4.33 vs baseline)

  
  Left: native widget. Right: Codename One render.

• Button_disabled_dark -- 93.52% fidelity (SSIM 0.9618) (no change)

  
  Left: native widget. Right: Codename One render.

• Slider_disabled_light -- 93.96% fidelity (SSIM 0.9625) (-0.05 vs baseline)

  
  Left: native widget. Right: Codename One render.

• FlatButton_normal_light -- 94.18% fidelity (SSIM 0.9825) (+1.32 vs baseline)

  
  Left: native widget. Right: Codename One render.

• Button_disabled_light -- 94.35% fidelity (SSIM 0.9636) (no change)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_pressed_dark -- 94.56% fidelity (SSIM 0.9653) (+1.46 vs baseline)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_normal_dark -- 94.57% fidelity (SSIM 0.9659) (+1.69 vs baseline)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_pressed_light -- 94.80% fidelity (SSIM 0.9665) (+2.04 vs baseline)

  
  Left: native widget. Right: Codename One render.

• RadioButton_selected_light -- 94.84% fidelity (SSIM 0.9916) (no change)

  
  Left: native widget. Right: Codename One render.

• RaisedButton_normal_light -- 95.01% fidelity (SSIM 0.9673) (+2.40 vs baseline)

  
  Left: native widget. Right: Codename One render.

• Slider_normal_light -- 95.09% fidelity (SSIM 0.9588) (-0.04 vs baseline)

  
  Left: native widget. Right: Codename One render.

• Switch_normal_light -- 95.51% fidelity (SSIM 0.9863) (no change)

  
  Left: native widget. Right: Codename One render.

• CheckBox_disabled_dark -- 95.76% fidelity (SSIM 0.9928) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_disabled_dark -- 95.76% fidelity (SSIM 0.9928) (no change)

  
  Left: native widget. Right: Codename One render.

• CheckBox_selected_light -- 95.80% fidelity (SSIM 0.9938) (no change)

  
  Left: native widget. Right: Codename One render.

• Switch_selected_dark -- 95.90% fidelity (SSIM 0.9850) (no change)

  
  Left: native widget. Right: Codename One render.

• Switch_disabled_light -- 96.35% fidelity (SSIM 0.9896) (+0.04 vs baseline)

  
  Left: native widget. Right: Codename One render.

• CheckBox_normal_dark -- 96.52% fidelity (SSIM 0.9927) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_normal_dark -- 96.52% fidelity (SSIM 0.9927) (no change)

  
  Left: native widget. Right: Codename One render.

• GlassPanelPhoto_normal_light -- 96.72% fidelity (SSIM 0.9804) (+0.64 vs baseline)

  
  Left: native widget. Right: Codename One render.

• GlassPanelPhoto_normal_dark -- 96.76% fidelity (SSIM 0.9832) (+0.59 vs baseline)

  
  Left: native widget. Right: Codename One render.

• TabOne_normal_dark -- 96.77% fidelity (SSIM 0.9526) (+0.73 vs baseline)

  
  Left: native widget. Right: Codename One render.

• Switch_normal_dark -- 96.80% fidelity (SSIM 0.9855) (no change)

  
  Left: native widget. Right: Codename One render.

• RadioButton_selected_dark -- 96.81% fidelity (SSIM 0.9908) (no change)

  
  Left: native widget. Right: Codename One render.

• TextField_normal_dark -- 96.88% fidelity (SSIM 0.9492) (-0.20 vs baseline)

  
  Left: native widget. Right: Codename One render.

• TextField_disabled_dark -- 97.19% fidelity (SSIM 0.9526) (-0.15 vs baseline)

  
  Left: native widget. Right: Codename One render.

• ProgressBar_normal_dark -- 97.47% fidelity (SSIM 0.9973) (+3.03 vs baseline)

  
  Left: native widget. Right: Codename One render.

• TabOne_normal_light -- 97.51% fidelity (SSIM 0.9608) (+1.89 vs baseline)

  
  Left: native widget. Right: Codename One render.

• ProgressBar_normal_light -- 97.60% fidelity (SSIM 0.9989) (+2.19 vs baseline)

  
  Left: native widget. Right: Codename One render.

• CheckBox_selected_dark -- 97.79% fidelity (SSIM 0.9932) (no change)

  
  Left: native widget. Right: Codename One render.

• Dialog_normal_dark -- 97.86% fidelity (SSIM 0.9614) (+0.89 vs baseline)

  
  Left: native widget. Right: Codename One render.

• Dialog_normal_light -- 97.95% fidelity (SSIM 0.9634) (+0.86 vs baseline)

  
  Left: native widget. Right: Codename One render.

• Switch_disabled_dark -- 98.01% fidelity (SSIM 0.9869) (+2.48 vs baseline)

  
  Left: native widget. Right: Codename One render.

• GlassIcon_normal_dark -- 98.59% fidelity (SSIM 0.9841) (no change)

  
  Left: native widget. Right: Codename One render.

• GlassText_normal_dark -- 98.64% fidelity (SSIM 0.9848) (+0.05 vs baseline)

  
  Left: native widget. Right: Codename One render.

• GlassIcon_normal_light -- 98.67% fidelity (SSIM 0.9860) (no change)

  
  Left: native widget. Right: Codename One render.

• GlassText_normal_light -- 98.74% fidelity (SSIM 0.9874) (+0.05 vs baseline)

  
  Left: native widget. Right: Codename One render.

• GlassPanelGrad_normal_light -- 98.91% fidelity (SSIM 0.9935) (+0.67 vs baseline)

  
  Left: native widget. Right: Codename One render.

• GlassPanelGrad_normal_dark -- 98.98% fidelity (SSIM 0.9928) (+0.55 vs baseline)

  
  Left: native widget. Right: Codename One render.

• GlassPanelGrey_normal_dark -- 98.99% fidelity (SSIM 0.9917) (+0.57 vs baseline)

  
  Left: native widget. Right: Codename One render.

• GlassPanelGrey_normal_light -- 99.05% fidelity (SSIM 0.9936) (+0.67 vs baseline)

  
  Left: native widget. Right: Codename One render.

• GlassPanelRed_normal_dark -- 99.09% fidelity (SSIM 0.9926) (+0.52 vs baseline)

  
  Left: native widget. Right: Codename One render.

• GlassPanelRed_normal_light -- 99.10% fidelity (SSIM 0.9939) (+0.67 vs baseline)

  
  Left: native widget. Right: Codename One render.

[shai-almog]

Compared 166 screenshots: 166 matched.
✅ Native Mac screenshot tests passed.

Benchmark Results

• VM Translation Time: 0 seconds
• Compilation Time: 209 seconds

Detailed Performance Metrics

Metric	Duration
SIMD kernel backend	SSE2 (x64) / NEON (arm64) native kernels
SIMD int-add (64K x300)	java 55ms / native 3ms = 18.3x speedup
SIMD float-mul (64K x300)	java 57ms / native 3ms = 19.0x speedup
SIMD kernel correctness	PASS (native result == scalar reference)
Base64 native bridge	unavailable (CN1 + SIMD + image benchmarks only)
Base64 payload size	8192 bytes
Base64 benchmark iterations	6000
Base64 SIMD byte path	active (NEON-accelerated)
Base64 CN1 encode	46.000 ms
Base64 CN1 decode	60.000 ms
Image encode benchmark iterations	100
Image createMask (SIMD off)	12.000 ms
Image createMask (SIMD on)	5.000 ms
Image createMask ratio (SIMD on/off)	0.417x (58.3% faster)
Image applyMask (SIMD off)	63.000 ms
Image applyMask (SIMD on)	63.000 ms
Image applyMask ratio (SIMD on/off)	1.000x (0.0% slower)
Image modifyAlpha (SIMD off)	84.000 ms
Image modifyAlpha (SIMD on)	51.000 ms
Image modifyAlpha ratio (SIMD on/off)	0.607x (39.3% faster)
Image modifyAlpha removeColor (SIMD off)	50.000 ms
Image modifyAlpha removeColor (SIMD on)	41.000 ms
Image modifyAlpha removeColor ratio (SIMD on/off)	0.820x (18.0% faster)

ParparVM vs HotSpot (JDK 25): macOS arm64

Runner CPU: Apple M1 (Virtual) (baseline macos-arm64)

Ratios are ParparVM / JDK 25: below 1.00x ParparVM is faster (time) or smaller (RAM). Median of 5 interleaved, paired rounds; every run's output was verified. A regression is a ratio more than 15% (time) / 15% (RAM) above its baseline in vm/selfhost/perf-baseline.json (more, for a row whose calibration runs were noisier; the file records it), and for RAM also more than 0.05x above it in absolute terms. Both run unpinned on all of the runner's CPUs, with their own default thread counts.

Benchmark	Cores	Time	RAM	Status
hello (HelloCodenameOne)	3	1.00x (base 0.96x, +4.6%)	1.27x (base 1.34x, -5.2%)	ok
translator (self)	3	0.58x (base 0.54x, +8.4%)	0.76x (base 0.74x, +3.3%)	ok
intArithmetic	3	1.06x (base 1.03x, +2.3%)	0.12x (base 0.12x, -0.3%)	ok
longArithmetic	3	1.01x (base 1.03x, -1.3%)	0.11x (base 0.11x, -2.1%)	ok
mathTranscendental	3	0.99x (base 1.01x, -2.2%)	0.12x (base 0.12x, -1.3%)	ok
arraySequential	3	0.42x (base 0.42x, -0.2%)	0.53x (base 0.53x, -0.2%)	ok
arrayRandom	3	0.97x (base 0.99x, -1.5%)	0.32x (base 0.32x, -0.6%)	ok
objectAllocation	3	3.90x (base 3.70x, +5.4%)	0.35x (base 0.48x, -26.8%)	ok
valueEscape	3	0.51x (base 0.51x, -0.2%)	0.09x (base 0.09x, -0.5%)	ok
hashMapChurn	3	1.09x (base 1.18x, -7.6%)	0.07x (base 0.07x, -1.8%)	ok
stringBuilding	3	0.97x (base 0.84x, +15.2%)	0.39x (base 0.54x, -27.2%)	better than baseline
recursion	3	1.26x (base 1.24x, +2.0%)	0.12x (base 0.12x, -1.1%)	ok
quicksort	3	0.99x (base 1.01x, -1.9%)	0.11x (base 0.11x, -0.5%)	ok

Result: no regression

[shai-almog]

Compared 155 screenshots: 155 matched.
✅ Native iOS Metal screenshot tests passed.

Benchmark Results

• VM Translation Time: 0 seconds
• Compilation Time: 1690 seconds

Build and Run Timing

Metric	Duration
Simulator Boot	2000 ms
Simulator Boot (Run)	0 ms
App Install	15000 ms
App Launch	1000 ms
Test Execution	387000 ms

Detailed Performance Metrics

Metric	Duration
SIMD kernel backend	SSE2 (x64) / NEON (arm64) native kernels
SIMD int-add (64K x300)	java 58ms / native 3ms = 19.3x speedup
SIMD float-mul (64K x300)	java 103ms / native 3ms = 34.3x speedup
SIMD kernel correctness	PASS (native result == scalar reference)
Base64 payload size	8192 bytes
Base64 benchmark iterations	6000
Base64 SIMD byte path	active (NEON-accelerated)
Base64 CN1 encode	60.000 ms
Base64 CN1 decode	58.000 ms
Base64 native encode	2079.000 ms
Base64 encode ratio (CN1/native)	0.029x (97.1% faster)
Base64 native decode	1679.000 ms
Base64 decode ratio (CN1/native)	0.035x (96.5% faster)
Base64 SIMD encode	56.000 ms
Base64 encode ratio (SIMD/CN1)	0.933x (6.7% faster)
Base64 SIMD decode	51.000 ms
Base64 decode ratio (SIMD/CN1)	0.879x (12.1% faster)
Base64 encode ratio (SIMD/native)	0.027x (97.3% faster)
Base64 decode ratio (SIMD/native)	0.030x (97.0% faster)
Image encode benchmark iterations	100
Image createMask (SIMD off)	7.000 ms
Image createMask (SIMD on)	6.000 ms
Image createMask ratio (SIMD on/off)	0.857x (14.3% faster)
Image applyMask (SIMD off)	82.000 ms
Image applyMask (SIMD on)	595.000 ms
Image applyMask ratio (SIMD on/off)	7.256x (625.6% slower)
Image modifyAlpha (SIMD off)	279.000 ms
Image modifyAlpha (SIMD on)	41.000 ms
Image modifyAlpha ratio (SIMD on/off)	0.147x (85.3% faster)
Image modifyAlpha removeColor (SIMD off)	69.000 ms
Image modifyAlpha removeColor (SIMD on)	63.000 ms
Image modifyAlpha removeColor ratio (SIMD on/off)	0.913x (8.7% faster)

[shai-almog]

Compared 223 screenshots: 223 matched.
✅ Native Apple Watch (watchOS, Core Graphics) screenshot tests passed.

[shai-almog]

Compared 154 screenshots: 154 matched.
✅ Native Mac screenshot tests passed.

Benchmark Results

• VM Translation Time: 0 seconds
• Compilation Time: 398 seconds

Detailed Performance Metrics

Metric	Duration
SIMD kernel backend	SSE2 (x64) / NEON (arm64) native kernels
SIMD int-add (64K x300)	java 61ms / native 2ms = 30.5x speedup
SIMD float-mul (64K x300)	java 57ms / native 3ms = 19.0x speedup
SIMD kernel correctness	PASS (native result == scalar reference)
Base64 payload size	8192 bytes
Base64 benchmark iterations	6000
Base64 SIMD byte path	active (NEON-accelerated)
Base64 CN1 encode	64.000 ms
Base64 CN1 decode	104.000 ms
Base64 native encode	714.000 ms
Base64 encode ratio (CN1/native)	0.090x (91.0% faster)
Base64 native decode	343.000 ms
Base64 decode ratio (CN1/native)	0.303x (69.7% faster)
Base64 SIMD encode	69.000 ms
Base64 encode ratio (SIMD/CN1)	1.078x (7.8% slower)
Base64 SIMD decode	76.000 ms
Base64 decode ratio (SIMD/CN1)	0.731x (26.9% faster)
Base64 encode ratio (SIMD/native)	0.097x (90.3% faster)
Base64 decode ratio (SIMD/native)	0.222x (77.8% faster)
Image encode benchmark iterations	100
Image createMask (SIMD off)	19.000 ms
Image createMask (SIMD on)	6.000 ms
Image createMask ratio (SIMD on/off)	0.316x (68.4% faster)
Image applyMask (SIMD off)	93.000 ms
Image applyMask (SIMD on)	74.000 ms
Image applyMask ratio (SIMD on/off)	0.796x (20.4% faster)
Image modifyAlpha (SIMD off)	62.000 ms
Image modifyAlpha (SIMD on)	70.000 ms
Image modifyAlpha ratio (SIMD on/off)	1.129x (12.9% slower)
Image modifyAlpha removeColor (SIMD off)	107.000 ms
Image modifyAlpha removeColor (SIMD on)	32.000 ms
Image modifyAlpha removeColor ratio (SIMD on/off)	0.299x (70.1% faster)

[shai-almog]

Compared 150 screenshots: 150 matched.
✅ Native Apple TV (tvOS, Metal) screenshot tests passed.

[shai-almog]

Compared 155 screenshots: 155 matched.
✅ Native iOS Metal screenshot tests passed.

Benchmark Results

• VM Translation Time: 0 seconds
• Compilation Time: 1848 seconds

Build and Run Timing

Metric	Duration
Simulator Boot	86000 ms
Simulator Boot (Run)	1000 ms
App Install	18000 ms
App Launch	2000 ms
Test Execution	410000 ms

Detailed Performance Metrics

Metric	Duration
SIMD kernel backend	SSE2 (x64) / NEON (arm64) native kernels
SIMD int-add (64K x300)	java 64ms / native 3ms = 21.3x speedup
SIMD float-mul (64K x300)	java 82ms / native 3ms = 27.3x speedup
SIMD kernel correctness	PASS (native result == scalar reference)
Base64 payload size	8192 bytes
Base64 benchmark iterations	6000
Base64 SIMD byte path	active (NEON-accelerated)
Base64 CN1 encode	98.000 ms
Base64 CN1 decode	55.000 ms
Base64 native encode	823.000 ms
Base64 encode ratio (CN1/native)	0.119x (88.1% faster)
Base64 native decode	797.000 ms
Base64 decode ratio (CN1/native)	0.069x (93.1% faster)
Base64 SIMD encode	93.000 ms
Base64 encode ratio (SIMD/CN1)	0.949x (5.1% faster)
Base64 SIMD decode	53.000 ms
Base64 decode ratio (SIMD/CN1)	0.964x (3.6% faster)
Base64 encode ratio (SIMD/native)	0.113x (88.7% faster)
Base64 decode ratio (SIMD/native)	0.066x (93.4% faster)
Image encode benchmark iterations	100
Image createMask (SIMD off)	6.000 ms
Image createMask (SIMD on)	2.000 ms
Image createMask ratio (SIMD on/off)	0.333x (66.7% faster)
Image applyMask (SIMD off)	99.000 ms
Image applyMask (SIMD on)	188.000 ms
Image applyMask ratio (SIMD on/off)	1.899x (89.9% slower)
Image modifyAlpha (SIMD off)	62.000 ms
Image modifyAlpha (SIMD on)	35.000 ms
Image modifyAlpha ratio (SIMD on/off)	0.565x (43.5% faster)
Image modifyAlpha removeColor (SIMD off)	201.000 ms
Image modifyAlpha removeColor (SIMD on)	31.000 ms
Image modifyAlpha removeColor ratio (SIMD on/off)	0.154x (84.6% faster)

[shai-almog]

@codex review

[chatgpt-codex-connector]

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[shai-almog]

@codex review

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. 🎉

Reviewed commit: 7620dcb7c6

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