summercms/.planning/quick/261001-qoa-add-a-docs-page-on-performance-and-scali/261001-qoa-SUMMARY.md

phase, plan, subsystem, tags, status, requires, provides, affects, tech-stack, key-files, decisions, metrics, actuals, plan_head_before, plan_head_after

phase	plan	subsystem	tags	status	requires	provides	affects	tech-stack	key-files	decisions	metrics	actuals	plan_head_before	plan_head_after
quick-261001-qoa	01	docs	docs architecture performance scaling	complete		docs/architecture/performance-and-scaling.md (Architecture section, order 50)	docs/index.md docs/setup/coming-from-wintercms.md	added patterns	created modified docs/architecture/performance-and-scaling.md docs/index.md docs/setup/coming-from-wintercms.md	Rate-limit caveat states that serve always builds the throttle limiter on surf.MemoryStore with no way to supply another store; the page advises dividing limits by replica count or limiting at the load balancer No pool-size or connection-limit config key is named, because lagoon has none (only database.dsn)	duration completed 10 min 2026-10-01	tokens tasks commits 2900 2 1	2fc5eac6d5	4103d95a1a

Quick 261001-qoa Plan 01: Performance and scaling docs page Summary

A new Architecture guide page compares a SummerCMS binary with WinterCMS on PHP-FPM: boot once versus per-request boot, memory, slow-I/O concurrency, the shared GORM+River pool and model hydration. It includes an expectations table under a NOTE saying the ranges are not measurements of SummerCMS, multi-replica caveats that match the code (including a WARNING on per-process rate limits), scaling and operations, and measuring with tide parity:record/parity:replay plus vegeta or k6.

Tasks

Task	Name	Commit	Files
1	Tracer: page shell, intro, "Boot once, not per request", inbound links	4103d95 (single commit, per plan)	docs/architecture/performance-and-scaling.md, docs/index.md, docs/setup/coming-from-wintercms.md
2	Remaining sections, identifier checks, gates, commit	4103d95	docs/architecture/performance-and-scaling.md

The tracer gate ran before expansion: TestDocsTree and TestDocsBuildRealTree passed, docs:build --check reported no problems, and a scratch build wrote architecture/performance-and-scaling.html with the landing page linking it.

Verification

• Identifiers confirmed with go doc: surf.MemoryStore, surf.Store, surf.NewFixedWindowLimiter, surf.Assemble, bouncer.PostgresBlacklist, bouncer.NewPostgresBlacklist, lagoon.Publish, party.Activate, cabana.CompiledController, wire.WriteJSON, attach.File.Thumb.
• Config keys checked by hand: queue.work_in_serve (modules/conga/client.go:55), database.dsn (modules/lagoon/connection.go:97), storage.uploads.bucket_url (modules/lagoon/attach/bucket.go). surf.BuildRouter always uses NewMemoryStore (modules/surf/router.go). Thumbnails use github.com/disintegration/imaging. serve --addr exists (modules/surf/serve.go).
• go vet ./...: green.
• go test ./cmd/summer -run 'TestDocsTree|TestDocsBuildRealTree' -count=1: ok.
• go run ./cmd/summer docs:build --check: "docs:build: no problems found".
• Scratch build: the sidebar order is introduction, go-modules-and-workspaces, application-lifecycle, request-lifecycle, performance-and-scaling.
• Acceptance greps all pass. No max_open, max_idle or pool_size appears. The commit touches exactly the three docs files and has no co-author or session trailer.

Deviations from Plan

• Task 1 intro: the tracer pointed to "the measuring section at the end of this page" in plain text, because the #measuring-it-yourself anchor did not exist yet and the link checker would have failed. Task 2 turned it into a link once the section existed. The final content matches the plan.
• The commit has no Co-Authored-By or session trailer, following the user's global CLAUDE.md and the orchestrator's constraints.

Otherwise the plan was executed as written.

Known Stubs

None.

Self-Check: PASSED

• FOUND: docs/architecture/performance-and-scaling.md
• FOUND: commit 4103d95