blog: explain the native engine migration

[Cianidos]

Summary

• explain why Stroppy's synchronous database workload became a poor fit for an embedded k6 application runtime
• cover CLI embedding, fake probe VM, fixed lifecycle, setup/load metrics, script boundaries, and unused HTTP/event-loop machinery
• describe what the native-engine RFC proposed versus the narrower engine that shipped in v6
• state tradeoffs: v6 gives up TypeScript workloads, k6 outputs, HTML reports, and the wider extension ecosystem
• include real official-release measurements of v5.7.3 versus v6.0.0 framework overhead

Stack

Third PR in stack:

1. docs: publish Stroppy v6 documentation #10 — v6 documentation
2. blog: announce Stroppy v6.0.0 #11 — v6 release highlights
3. this PR — migration motivation and measurements

Merge in that order. This PR targets blog/v6-release and contains one post.

Measurement

• official v5.7.3 and v6.0.0 Darwin arm64 release binaries
• Apple M5 Pro, 18 cores, 48 GB RAM; GOMAXPROCS=8
• tpcb/tx, Noop driver, setup excluded, five query calls plus one row read per iteration
• 1 and 8 VUs
• five alternating 10-second samples per version/configuration
• median completed iterations divided by requested measurement window

Median results:

VUs	v5.7.3 tx/s	v6.0.0 tx/s	Ratio
1	8,363	371,032	44.4x
8	34,709	702,827	20.2x

Post explicitly limits these numbers to database-free framework overhead and notes v6's remaining high-rate metric-pipeline contention.

Verification

• source length: 1,304 words plus final methodology edits
• rendered reading time: 7 minutes
• no second-person pronouns
• pinned RFC/release references resolve
• rendered benchmark table checked
• npm run typecheck
• npm run build
• git diff --check

Summary by CodeRabbit

• Documentation
  • Added a blog post covering Stroppy v6’s transition from a k6 extension to a native Go engine.
  • Explained the new engine’s design, retained compatibility features, and removed k6 capabilities.
  • Included framework-only benchmark results showing v6 performing 20–44× faster than v5.7.3 with a Noop driver.
  • Added migration guidance and links to related release documentation.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

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Run ID: 487a4224-fc3e-4e39-871b-66fcdef68fa4

📥 Commits

Reviewing files that changed from the base of the PR and between ae401ac and 65d3be6.

📒 Files selected for processing (1)

• blog/2026-09-08-why-native-engine/index.md

🚧 Files skipped from review as they are similar to previous changes (1)

• blog/2026-09-08-why-native-engine/index.md

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📝 Walkthrough

Walkthrough

This change adds a blog post about Stroppy v6 moving from a k6 extension to a native Go engine. It covers integration constraints, benchmark results, engine design, removed and retained capabilities, and migration references.

Changes

Native Engine Article

Layer / File(s)	Summary
Workload and k6 integration context blog/2026-09-08-why-native-engine/index.md	Adds article metadata and explains Stroppy's synchronous SQL workload, k6 integration requirements, unused runtime features, and lifecycle friction.
Performance evidence and native engine design blog/2026-09-08-why-native-engine/index.md	Documents the v5.7.3 and v6.0.0 benchmark methodology and results, performance boundaries, and the shipped native engine design.
Capabilities and migration references blog/2026-09-08-why-native-engine/index.md	Lists capabilities removed and retained in v6 and links to release, migration, baseline, and RFC documentation.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Merge Risk: ⚪ Minimal · up to 65d3b

The documentation-only change has no identified merge-blocking risk and is mergeable after normal checks.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: adding a blog post about the native engine migration.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch blog/why-native-engine

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[Cianidos]

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Actionable comments posted: 1

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Inline comments:
In `@blog/2026-09-08-why-native-engine/index.md`:
- Line 58: Update the lifecycle phase wording in the sentence containing
“Stroppy needed named schema” to explicitly describe named schema, load, index,
validation, and workload phases with filters.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: 9b629ab4-43ba-4057-ba6a-d51e79348982

📥 Commits

Reviewing files that changed from the base of the PR and between 03b9687 and ae401ac.

📒 Files selected for processing (1)

• blog/2026-09-08-why-native-engine/index.md

Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review.

[Cianidos]

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