[ryansolid]

Size-Exception: the live page floor records +165 B minified (cap unchanged at 40.76 KB) and the renderToString floor records +13 B minified (cap unchanged at 22.92 KB). Both come from #4717 and #4720, whose growth and floor raises were accepted by the maintainer, plus #4719's lane-engine guard.

Summary

This is the one ledger re-record for the batch #4714, #4711, #4717, #4719 and #4720. It was measured locally over next @ 2789ca9 (with #4720), and it is the batch's only ledger PR.

scenario	brotli	minified	change
app: isPending/latest	12,748 B	35,495 B	cap unchanged at 12.76 KB; recorded minified +3 B
app: hydrating + every store primitive family	33,872 B	101,921 B	cap 33.83 -> 33.89 KB; recorded minified +3 B
page: live server components (frozen)	40,734 B	123,070 B	cap unchanged at 40.76 KB; recorded minified +165 B
page: live server components + router	50,580 B	148,802 B	cap 50.57 -> 50.59 KB; recorded minified +3 B
server: renderToString (frozen)	22,903 B	77,888 B	cap unchanged at 22.92 KB; recorded minified +13 B

Hello world (app: compiled floor) is 9,973 B against its 9,980 B cap, and the simple app is 9,792 B against 9,800 B.

Two rows are left as they are because their minified size went down. They pass with a warning, and only their brotli layout moved:

• page: compiled base server components is 36 B over its 36.00 KB cap, at −46 B minified.
• page: compiled live server components is 44,833 B against a 44.85 KB cap, at −11 B minified.

How did you test this change?

• node size.mjs --json over next @ 2789ca9.
• npm test in scripts/size.

🤖 Generated with Claude Code

https://claude.ai/code/session_0117BoWNSSgtemsSYsaX2hXE

[changeset-bot]

⚠️ No Changeset found

Latest commit: 303d4f2

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[github-actions]

Size (brotli, eager entry chunk)

scenario	head	vs base	minified vs base	minified vs recorded	cap		lazy chunks (not counted)
signals: core floor (createSignal/Memo/Effect/Root/flush)	7.42 KB	0 B	0 B	−136 B	7.43 KB	✅
signals: + createStore	15.11 KB	0 B	0 B	−21 B	15.13 KB	✅
signals: + isPending/latest	12.75 KB	0 B	0 B	0 B	12.76 KB	✅
signals: + until/refresh (truth readers, no optimism)	8.10 KB	0 B	0 B	−21 B	8.12 KB	✅
app: render + one signal (the simple-app floor)	9.79 KB	0 B	0 B	−195 B	9.80 KB	✅
app: hydrating (no stores) with Show/For/Loading/Errored/lazy	19.05 KB	0 B	0 B	−45 B	19.05 KB	✅	lazy-page.js 0.04 KB
app: hydrating + every store primitive family	33.87 KB	0 B	0 B	0 B	33.89 KB	✅	lazy-page.js 0.04 KB
app: CSR with Show/For/Loading/Errored/lazy	13.73 KB	0 B	0 B	−45 B	13.73 KB	✅	lazy-page.js 0.04 KB
app: CSR, observe tier (same app on the observe artifacts)	15.45 KB	0 B	0 B	−45 B	15.50 KB	✅	lazy-page.js 0.04 KB
app: CSR, observe tier + attribution engine enabled	30.08 KB	0 B	0 B	−45 B	30.12 KB	✅	lazy-page.js 0.04 KB
app: compiled floor (one template, one text hole, one delegated click)	9.97 KB	0 B	0 B	−247 B	9.98 KB	✅
app: compiled CSR (JSX todo app: spread/merge/omit, events, class/style, keyed For, Show, Loading + lazy, store)	26.73 KB	0 B	0 B	−35 B	26.75 KB	✅	stats.js 0.18 KB
app: compiled hydrating (the same JSX todo app through hydrate(), compiled hydratable)	32.92 KB	0 B	0 B	−35 B	33.00 KB	✅	stats.js 0.20 KB
frames: eager client consumer (frames client + transport, lazy codec)	11.75 KB	0 B	0 B	0 B	11.77 KB	✅
page: base server components (hydrating + dynamic + frames + sf reference)	34.09 KB	0 B	0 B	−32 B	34.11 KB	✅	assets.js 0.78 KB, decode.js 7.09 KB, lazy-page.js 0.04 KB, regions.js 1.06 KB, trace.js 9.28 KB, wire.js 3.48 KB
page: live server components (base + live/GET + action + isPending/latest)	40.73 KB	0 B	0 B	0 B	40.76 KB	✅	assets.js 0.78 KB, decode.js 7.09 KB, lazy-page.js 0.04 KB, regions.js 1.06 KB, trace.js 9.29 KB, wire.js 3.48 KB
page: compiled base server components (the base page as JSX: templates with class/style/attributes/events, For/Show; no spread)	36.04 KB	0 B	0 B	−46 B	36.00 KB	⚠️ over by 36 B, 66 B minified headroom	assets.js 0.78 KB, decode.js 7.09 KB, regions.js 1.06 KB, sc-comments.js 0.20 KB, trace.js 9.29 KB, wire.js 3.48 KB
page: compiled live server components (the compiled base page + live/GET + action + isPending/latest)	44.83 KB	0 B	0 B	−11 B	44.85 KB	✅	eager (counted): web.js 23.67 KB; assets.js 0.78 KB, decode.js 7.09 KB, regions.js 1.08 KB, sc-comments.js 0.19 KB, trace.js 9.28 KB, wire.js 3.48 KB
page: base + router (base page + @solidjs/router: createRouter, two routes, preload, useNavigate)	41.56 KB	0 B	0 B	−120 B	41.60 KB	✅	assets.js 0.78 KB, decode.js 7.09 KB, lazy-page.js 0.04 KB, regions.js 1.07 KB, server.js 1.03 KB, serverForms.js 3.58 KB, trace.js 9.25 KB, wire.js 3.48 KB
page: live + router (live page + @solidjs/router: createRouter, two routes, preload, useNavigate)	50.58 KB	0 B	0 B	0 B	50.59 KB	✅	eager (counted): client.js 28.84 KB; assets.js 0.78 KB, decode.js 7.09 KB, lazy-page.js 0.04 KB, regions.js 1.07 KB, server.js 1.03 KB, serverForms.js 3.31 KB, trace.js 9.27 KB, wire.js 3.50 KB
server: floor (getRequestEvent + isServer)	1.27 KB	0 B	0 B	0 B	1.29 KB	✅
server: renderToString (the server-render floor)	22.90 KB	0 B	0 B	0 B	22.92 KB	✅

⚠️ Over the brotli cap within the minified allowance (passes)

• page: compiled base server components (the base page as JSX: templates with class/style/attributes/events, For/Show; no spread): over brotli cap by 36 B; minified 108,500 B vs 108,546 B recorded with the cap (−46 B) — 66 B of the 20 B minified allowance left; +0 B minified over this PR's base

_{Bundled with Rolldown (what Vite ships), brotli q11, decimal KB. A scenario fails only when it is over its brotli cap and its minified size is more than 20 B over the minified recorded with the cap; over the cap within that allowance is brotli layout noise and passes with a warning. Caps and their recorded minified in scripts/size/scenarios.js; the floor and page caps in floor-caps.json are frozen (lower only, or Size-Exception: in the PR body). npm run ratchet lowers caps per RC; it never raises one (scripts/size/README.md).}

[coveralls]

Coverage Report for CI Build 42464228996

Warning

No base build found for commit 9c66532 on next.
Coverage changes can't be calculated without a base build.
If a base build is processing, this comment will update automatically when it completes.

Coverage: 78.945%

Details

• Patch coverage: No coverable lines changed in this PR.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

Requires a base build to compare against. How to fix this →

---

Coverage Stats

Relevant Lines:	1372
Covered Lines:	1143
Line Coverage:	83.31%
Relevant Branches:	1112
Covered Branches:	818
Branch Coverage:	73.56%
Branches in Coverage %:	Yes
Coverage Strength:	30.18 hits per line

---

💛 - Coveralls

[codspeed]

Merging this PR will degrade performance by 8.43%

2 warnings

⚠️ 2 benchmarks are dominated by system calls

System calls cannot be simulated consistently and are left out of the measure. The reported value understates the real cost. Switch to the Walltime instrument to measure them.

Learn more about system calls

See affected benchmarks

⚠️ 1 benchmark with a significant change ran on different hardware

Its base and head results were measured on machines with a different CPU, core count or memory, so the change might not come from the code. Run base and head on the same runner type.

Learn more about Macro Runners

See affected benchmarks

❌ 1 regressed benchmark
✅ 200 untouched benchmarks
⏩ 5 skipped benchmarks¹

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
❌	arrow in template	10.9 ms	11.9 ms	-8.43%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

---

_{Comparing claude/size-rerecord-17 (3b73548) with next (46a72c0)}

Footnotes

1. 5 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[ryansolid]

The CodSpeed row (non-ascii-template: arrow in template, -8.4%) isn't this PR's. The diff only touches scripts/size/scenarios.js comments and numbers and scripts/size/floor-caps.json, none of which a benchmark imports. That same bench has swung ±5–13% on unrelated heads over the last few days, with its ascii only twin moving the opposite way.

---

Generated by Claude Code

[ryansolid]

The four red Run benchmarks (…) jobs on af77f9a never reached a benchmark. The CodSpeed action's CLI install step fails while downloading the CLI (Installation of CodSpeed CLI with version 4.19.1 failed. Reason: HTTP 504 - Gateway Time-out) about 11 s in. It failed the same way on one re-run. This is CodSpeed's download host, not this diff: the PR only touches scripts/size/ ledger values, which no benchmark loads. There's no fix to port. The jobs need another run once that host is responding.

---

Generated by Claude Code

[ryansolid]

The job check failed twice on 5a34ea3, both times on the Coveralls reporter install step. The test steps passed first.

• First attempt: the reporter tarball failed its checksum. Expected cd042b63…, got bef140a1….
• Re-run: the checksum download returned 504 Gateway Time-out.

Both failures are in the coverage upload's infrastructure, not anything this PR changes. This PR only touches scripts/size ledger values, and the size gate and tests are green. No fix exists on our side. It clears once Coveralls serves the reporter again.

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Generated by Claude Code