Add Marko - #109
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frameworks/marko/: one standalone Marko 6 (tags API) app per bench,
built with @marko/vite (linked: false) and mounted client-side via the
template .mount() API. Registered in results/app/frameworks.ts (logo
from markojs.com, the magenta chevron stripe as the chart color) and in
the playwright suite's FRAMEWORKS.
Marko-specific shapes, documented in frameworks/marko/README.md:
- reactivity is per-assignment (no deep proxies), so dbmon reassigns
its Map and chat list, and ten-k gives every item its own <let> in a
child tag whose setter the app registers by index
- root-level text needs the `--` prefix (a bare ${...} line parses as a
dynamic tag name in concise mode)
- an attribute method shorthand closing over a <for> loop variable
compiles to a hoisted function that loses the loop scope; a static
function taking the index avoids it
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Pull request overview
Adds Marko 6 implementations for all benchmark workloads and integrates Marko into testing and result visualization.
Changes:
- Adds five client-side Marko benchmark applications.
- Registers Marko in tests and results metadata.
- Documents Marko’s scheduler behavior and adjusts conformance tests accordingly.
Reviewed changes
Copilot reviewed 37 out of 48 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
tests/specs/conformance.spec.ts |
Adds frame-throttled framework handling. |
tests/README.md |
Documents conformance exclusions. |
tests/helpers.ts |
Registers Marko for app tests. |
results/public/marko.svg |
Adds the Marko logo. |
results/app/frameworks.ts |
Adds Marko result metadata. |
frameworks/marko/README.md |
Documents setup and scheduler constraints. |
frameworks/marko/ten-k-items-one-time/.gitignore |
Adds generated-file exclusions. |
frameworks/marko/ten-k-items-one-time/index.html |
Adds the client entry page. |
frameworks/marko/ten-k-items-one-time/package.json |
Defines app dependencies and scripts. |
frameworks/marko/ten-k-items-one-time/pnpm-lock.yaml |
Locks app dependencies. |
frameworks/marko/ten-k-items-one-time/public/favicon.svg |
Adds the app favicon. |
frameworks/marko/ten-k-items-one-time/src/App.marko |
Implements the list benchmark. |
frameworks/marko/ten-k-items-one-time/src/main.js |
Mounts the Marko app. |
frameworks/marko/ten-k-items-one-time/src/tags/bench-item.marko |
Provides per-item reactive state. |
frameworks/marko/ten-k-items-one-time/vite.config.js |
Configures client-only Marko compilation. |
frameworks/marko/one-item-many-updates/.gitignore |
Adds generated-file exclusions. |
frameworks/marko/one-item-many-updates/index.html |
Adds the client entry page. |
frameworks/marko/one-item-many-updates/package.json |
Defines app dependencies and scripts. |
frameworks/marko/one-item-many-updates/pnpm-lock.yaml |
Locks app dependencies. |
frameworks/marko/one-item-many-updates/public/favicon.svg |
Adds the app favicon. |
frameworks/marko/one-item-many-updates/src/App.marko |
Implements repeated updates. |
frameworks/marko/one-item-many-updates/src/main.js |
Mounts the Marko app. |
frameworks/marko/one-item-many-updates/vite.config.js |
Configures client-only Marko compilation. |
frameworks/marko/incrementing-render-effect/.gitignore |
Adds generated-file exclusions. |
frameworks/marko/incrementing-render-effect/index.html |
Adds the client entry page. |
frameworks/marko/incrementing-render-effect/package.json |
Defines app dependencies and scripts. |
frameworks/marko/incrementing-render-effect/pnpm-lock.yaml |
Locks app dependencies. |
frameworks/marko/incrementing-render-effect/public/favicon.svg |
Adds the app favicon. |
frameworks/marko/incrementing-render-effect/src/App.marko |
Implements render-driven advancement. |
frameworks/marko/incrementing-render-effect/src/main.js |
Mounts the Marko app. |
frameworks/marko/incrementing-render-effect/vite.config.js |
Configures client-only Marko compilation. |
frameworks/marko/fan-out/.gitignore |
Adds generated-file exclusions. |
frameworks/marko/fan-out/index.html |
Adds the client entry page. |
frameworks/marko/fan-out/package.json |
Defines app dependencies and scripts. |
frameworks/marko/fan-out/pnpm-lock.yaml |
Locks app dependencies. |
frameworks/marko/fan-out/public/favicon.svg |
Adds the app favicon. |
frameworks/marko/fan-out/src/App.marko |
Implements fan-out rendering. |
frameworks/marko/fan-out/src/main.js |
Mounts the Marko app. |
frameworks/marko/fan-out/vite.config.js |
Configures client-only Marko compilation. |
frameworks/marko/dbmon-with-chat/.gitignore |
Adds generated-file exclusions. |
frameworks/marko/dbmon-with-chat/index.html |
Adds the client entry page. |
frameworks/marko/dbmon-with-chat/package.json |
Defines app dependencies and scripts. |
frameworks/marko/dbmon-with-chat/pnpm-lock.yaml |
Locks app dependencies. |
frameworks/marko/dbmon-with-chat/public/favicon.svg |
Adds the app favicon. |
frameworks/marko/dbmon-with-chat/src/App.marko |
Implements DBMon and chat rendering. |
frameworks/marko/dbmon-with-chat/src/layout.css |
Adds benchmark layout styles. |
frameworks/marko/dbmon-with-chat/src/main.js |
Mounts the Marko app. |
frameworks/marko/dbmon-with-chat/vite.config.js |
Configures Marko and linked assets. |
Files not reviewed (5)
- frameworks/marko/dbmon-with-chat/pnpm-lock.yaml: Generated file
- frameworks/marko/fan-out/pnpm-lock.yaml: Generated file
- frameworks/marko/incrementing-render-effect/pnpm-lock.yaml: Generated file
- frameworks/marko/one-item-many-updates/pnpm-lock.yaml: Generated file
- frameworks/marko/ten-k-items-one-time/pnpm-lock.yaml: Generated file
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| `incrementing-render-effect` bench advances exactly one update per | ||
| frame, so at its default 100k updates it will not finish inside the | ||
| runner's default `--timeout`. That pacing is the framework's real | ||
| behavior; run that bench with fewer `?updates=` or a larger timeout |
Contributor
Author
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Done in 14c5e92: notes.json gains { "skip": { "<bench app>": "why" } } — the runner logs the reason and continues instead of aborting, and the reason is recorded into the result file with the rest of the notes. marko declares incrementing-render-effect skipped. Verified end to end: pnpm bench --framework=marko --bench="Incrementing Render Effect" completes with the warning and writes notes.marko.skip.
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| test.skip( | ||
| FRAME_THROTTLED.has(framework) && spec.app !== SELF_ADVANCING, | ||
| 'frame-rate-floor scheduler: per-task writes coalesce into per-frame renders by design', | ||
| ); |
Owner
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oof, ya changing the anti-cheating coverage is not allowed. we can make adjustments in a separate PR to the conformance stuff tho
Contributor
Author
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Moved out of this PR → #110. This branch no longer touches the conformance suite or common — the anti-cheat specs here are exactly what's on main.
#110 keeps the coverage rather than skipping: yield=frame delivers one write per frame (the pacing you suggested), and all trace assertions apply to marko unchanged. Merge order: #110 first, then this PR's conformance CI step goes green (until then it fails for marko, since a frame-floored scheduler coalesces task-paced writes).
Owner
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Potential issue with marko performance: |
Owner
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Marko scores pretty good outside of incrementing render effect 
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Review feedback: the runner hard-codes each bench's workload
(incrementing-render-effect at 100k updates) and aborts the whole run
when a sample never reaches :done inside --timeout -- so a framework
that architecturally cannot finish a bench (marko advances one update
per animation frame there: hours of frames) made every default
`--framework=all` run abort.
notes.json gains an optional skip map, `{ "skip": { "<bench app>":
"why" } }`: the runner logs the reason and moves on instead of dying,
and since notes.json is already recorded into the result file, the
reason travels with the run. marko declares
incrementing-render-effect skipped.
Verified end to end: `pnpm bench --framework=marko
--bench="Incrementing Render Effect"` completes, warns with the
reason, and writes it under notes.marko.skip in the result file.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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| @@ -0,0 +1,5 @@ | |||
| { | |||
| "skip": { | |||
| "incrementing-render-effect": "marko renders at most one update per animation frame (frame-rate-floor scheduler), and this bench advances one update per render: 100k updates is hours of frames, so the sample can never reach :done inside any practical --timeout" | |||
Owner
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@NullVoxPopuli-ai-agent does marko really not have a way to have multiple effects triggered within one frame?
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Adds Marko (v6, the tags API — compiled fine-grained reactivity, so it qualifies) as a benched framework.
What's here
frameworks/marko/— one standalone Marko 6 app per bench: Vite +@marko/vite(linked: false, linked mode is for SSR entrypoints), client-side.mount(),commonlinked like every other framework.frameworks/marko/README.mddocuments the scaffold and the traps below.frameworks.ts+results/public/marko.svg, from the site's fav.svg; chart color is the logo's magenta stripe — the cyan/green/orange stripes sit too close to react/vue/ember)tests/helpers.tsFRAMEWORKS entry — all 5 apps + the dbmon dev-server test passnotes.jsoncan declare benches a framework cannot run ({ "skip": { "<bench app>": "why" } }) — logged and recorded into the result file instead of aborting the whole run after--timeout. marko declares incrementing-render-effect skipped (see below).Marko traps hit along the way
${...}line at a template's root parses as a dynamic tag name (concise mode) —createElementNS('[undefined]')at runtime. Root-level text needs the--prefix.<for>loop variable, passed to a custom tag, compiles to a hoisted function referencing$scopethat doesn't exist at runtime. ten-k passes astaticregister function + the index as separate attributes instead.<let>in atags/child tag (the signal-per-item shape preact/lit/solid use).The interesting one: a frame-rate floor
Marko's scheduler renders the first write of a frame in a microtask and parks every later write until the next animation frame (
schedule()in marko'ssrc/dom/schedule.ts). Two consequences::doneinside any practical--timeout, and the runner used to abort the entire run on that — hence thenotes.jsonskip mechanism above. (Forcingrun()frommarko/dominto the app would measure manual flushing instead of Marko.)yield=framefor frame-throttled frameworks, keeping every trace assertion. Merge order: Conformance: trace frame-throttled frameworks via yield=frame #110 first, then this PR's conformance CI step goes green.Verification
pnpm buildgreen for all 5 appsSKIP_BUILD=1 pnpm test -g marko: 6/6 (incl. dbmon dev-server; needed the sameserver.fs.allowworkaround as every other framework)pnpm bench --framework=marko --bench="Incrementing Render Effect"completes, warns with the skip reason, and records it undernotes.marko.skip🤖 Generated with Claude Code