Blog: 'not a JVM' SIMD/stack-allocation deep dive + syndicate_force override#5269
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… mermaid loader fix Wednesday deep dive on adding aligned arrays, stack allocation and portable SIMD to Java by compiling to C instead of running on a JVM, with real CI benchmark numbers, an escape-analysis / cold-client-code section, and the honest 'measure handcrafted SIMD against an -O2 compiler' lesson. Also hardens the shared mermaid shortcode: the loader is a dynamically-injected ES module that runs after DOMContentLoaded, so mermaid's startOnLoad listener never fired; render explicitly with mermaid.run() instead (verified in Chromium and WebKit). Adds an opt-in syndicate_force front-matter flag so this non-Friday post can join the DZone/Foojay rotation. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What
An engineering deep-dive blog post (Wed 2026-06-24) plus the small syndication change it needs.
Post:
docs/website/content/blog/not-a-jvm-simd-stack-allocation.md— "We're Not a JVM, and That's How We Got SIMD and Stack Allocation into Java." Because Codename One compiles bytecode to C instead of running on a JVM, we added aligned arrays, stack allocation (allocaByte), and portable SIMD (Simd/IOSSimd/WindowsSimd/LinuxSimd). It carries real CI benchmark numbers (fused kernels win on x64 + NEON; the Base64 byte-shuffle codec wins on NEON but is deliberately gated to scalar on x86-64 because the/O2autovectorizer already matches it), two{{< mermaid >}}diagrams, and an honest note that CI's-O1builds overstate the speedups vs the-O2releases.master: Windows #27900572303, Mac #27904116497, iOS #27904116502.blog-prosegate (Vale + LanguageTool); addedautovectoriz*,speedups?,footguns?to the blog accept-list.Syndication change
This is a non-Friday deep dive we want to push to DZone + Foojay experimentally. Both are normally Friday-only gated, so I added an opt-in front-matter flag:
Honored by
_forced_platforms()inqueue_browser_syndication.py(used by both_platform_acceptsand the prune_task_is_allowed) and inline inFoojayAdapter.accepts. Default behavior is unchanged — a normal Wednesday post without the flag stays gated (verified). The flag does not bypass theMIN_AGE_DAYS = 7eligibility, so the canonical on codenameone.com still indexes first (SEO).Note: the blog's lightweight front-matter parser is scalar-only, so the list arrives as a string —
_forced_platformstokenizes it withre.findallto handle either form.Test plan
blog_prose_gate.py(Vale + LanguageTool) passes — no net-new findings.py_compileclean; mermaid shortcodes balanced; hero image 2048×1024.-O2behavior, theapplyMaskiOS regression) before merge.🤖 Generated with Claude Code