git.iko.soy/typeable/elm-ui
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add Rendering Benchmark Suite
commitcdc4f7063f9e09b2f2c535821e96b3613e44a2e3 authorMatthew Griffith <mdg.griffith@gmail.com> dateSat 29 Jun 2019, 10:47 (7 years ago) parente288034
9 files changed+740−1
compare with master
unifiedsplit
.gitignore+3−1 benchmarks/README.md+15 benchmarks/elm.json+25 benchmarks/package.json+24 benchmarks/runtime/benchPage.js+94 benchmarks/runtime/index.js+42 benchmarks/src/Bench.elm+31 benchmarks/src/Render.elm+135 benchmarks/yarn.lock+371
.gitignore+3−1
@@ -19,4 +19,6 @@ examples/temporary/
1919
2020sauce.env
2121
22−__pycache__
22+__pycache__
23+node_modules
24+benchmarks/tmp
benchmarks/README.mdnew file+15
@@ -0,0 +1,15 @@
1+# Render Benchmark
2+
3+A CLI for capturing rendering performance.
4+
5+```bash
6+# cd to this directory
7+yarn install
8+yarn bench
9+```
10+
11+We're interested in overall rendering performance. Right now that means measuring:
12+
13+1. Speed for first paint.
14+2. FPS for extended animations.
15+
benchmarks/elm.jsonnew file+25
@@ -0,0 +1,25 @@
1+{
2+ "type": "application",
3+ "source-directories": [
4+ "src",
5+ "../src"
6+ ],
7+ "elm-version": "0.19.0",
8+ "dependencies": {
9+ "direct": {
10+ "elm/browser": "1.0.1",
11+ "elm/core": "1.0.2",
12+ "elm/html": "1.0.0",
13+ "elm/json": "1.1.3",
14+ "elm/time": "1.0.0"
15+ },
16+ "indirect": {
17+ "elm/url": "1.0.0",
18+ "elm/virtual-dom": "1.0.2"
19+ }
20+ },
21+ "test-dependencies": {
22+ "direct": {},
23+ "indirect": {}
24+ }
25+}
benchmarks/package.jsonnew file+24
@@ -0,0 +1,24 @@
1+{
2+ "name": "render-benchmark",
3+ "version": "1.0.0",
4+ "description": "A CLI for capturing rendering performance",
5+ "main": "index.js",
6+ "scripts": {
7+ "test": "echo \"Error: no test specified\" && exit 1",
8+ "bench": "node runtime/index.js"
9+ },
10+ "repository": {
11+ "type": "git",
12+ "url": "git+https://github.com/mdgriffith/render-benchmark.git"
13+ },
14+ "author": "Matthew Griffith <mdg.griffith@gmail.com> (http://mechanical-elephant.com/)",
15+ "license": "ISC",
16+ "bugs": {
17+ "url": "https://github.com/mdgriffith/render-benchmark/issues"
18+ },
19+ "homepage": "https://github.com/mdgriffith/render-benchmark#readme",
20+ "dependencies": {
21+ "node-elm-compiler": "^5.0.3",
22+ "puppeteer": "^1.18.0"
23+ }
24+}
benchmarks/runtime/benchPage.jsnew file+94
@@ -0,0 +1,94 @@
1+const path = require('path');
2+
3+async function benchPage(page) {
4+ const client = await page.target().createCDPSession();
5+ await client.send('Performance.enable');
6+ // await page.tracing.start({ path: 'trace.json' });
7+ await page.goto(`file:${path.join(__dirname, '/../tmp/index.html')}`)
8+
9+ await page.waitFor(1000);
10+ // await page.tracing.stop();
11+ const metrics = await client.send('Performance.getMetrics');
12+ await page.evaluate(() => { window.elmStartAnim() })
13+ await sleep(10000)
14+ await page.evaluate(() => { window.elmStopAnim() })
15+ const frames = await page.evaluate(x => {
16+ return Promise.resolve(window.metrics);
17+ }, {});
18+
19+ return {
20+ name: frames.name,
21+ perf: extract(metrics),
22+ frames: summarize(frames.frames),
23+ }
24+}
25+
26+function summarize(frames) {
27+ return {
28+ count: frames.length,
29+ median: median(frames),
30+ mode: mode(frames),
31+ avg: average(frames),
32+ fps: 1000 / average(frames)
33+ }
34+}
35+
36+function extract(metrics) {
37+ var ext = {}
38+ metrics.metrics.forEach((item) => {
39+ ext[item.name] = item.value
40+
41+ })
42+ ext.TimeToFirstPaintMS = 1000 * (ext.FirstMeaningfulPaint - ext.DomContentLoaded)
43+ return ext
44+}
45+
46+function mode(array) {
47+ if (array.length == 0)
48+ return null;
49+ var modeMap = {};
50+ var maxEl = array[0], maxCount = 1;
51+ for (var i = 0; i < array.length; i++) {
52+ var el = array[i];
53+ if (modeMap[el] == null)
54+ modeMap[el] = 1;
55+ else
56+ modeMap[el]++;
57+ if (modeMap[el] > maxCount) {
58+ maxEl = el;
59+ maxCount = modeMap[el];
60+ }
61+ }
62+ return maxEl;
63+}
64+
65+function average(values) {
66+ var total = 0;
67+ for (var i = 0; i < values.length; i++) {
68+ total += values[i];
69+ }
70+ return total / values.length;
71+}
72+
73+function median(values) {
74+ if (values.length === 0) return 0;
75+
76+ values.sort(function (a, b) {
77+ return a - b;
78+ });
79+
80+ var half = Math.floor(values.length / 2);
81+
82+ if (values.length % 2)
83+ return values[half];
84+
85+ return (values[half - 1] + values[half]) / 2.0;
86+}
87+
88+
89+function sleep(ms) {
90+ return new Promise(resolve => {
91+ setTimeout(resolve, ms)
92+ })
93+}
94+module.exports = benchPage;
benchmarks/runtime/index.jsnew file+42
@@ -0,0 +1,42 @@
1+const puppeteer = require('puppeteer');
2+const benchPage = require('./benchPage');
3+var compileToString = require("node-elm-compiler").compileToString;
4+const fs = require('fs');
5+
6+
7+function write_entrypoint(item) {
8+
9+ const entrypoint = `module Main exposing (main)
10+import ${item.module}
11+import Render
12+
13+main = Render.toProgram ${item.module}.${item.value}
14+`
15+ fs.writeFileSync('./tmp/Main.elm', entrypoint);
16+}
17+
18+(async () => {
19+ const browser = await puppeteer.launch();
20+ var instances = [{ module: "Bench", value: "bench" }]
21+ var dir = "tmp"
22+ if (!fs.existsSync(dir)) {
23+ fs.mkdirSync(dir);
24+ }
25+
26+ for (var i = 0; i < instances.length; i++) {
27+ var item = instances[i]
28+ write_entrypoint(item)
29+ var template = fs.readFileSync("./runtime/template/index.html")
30+ // we embed the compiled js to avoid having to start a server to read the app.
31+ await compileToString(["./tmp/Main.elm"], {}).then(function (compiled_elm_code) {
32+ const compiled = eval(`\`${template}\``)
33+ fs.writeFileSync("./tmp/index.html", compiled)
34+ });
35+
36+ const page = await browser.newPage();
37+ const results = await benchPage(page);
38+ await page.close()
39+ console.log(results)
40+ }
41+ await browser.close();
42+})();
benchmarks/src/Bench.elmnew file+31
@@ -0,0 +1,31 @@
1+module Bench exposing (bench)
2+
3+{-| -}
4+
5+import Html
6+import Render
7+
8+
9+type Msg
10+ = Refresh
11+ | Tick Float
12+
13+
14+bench : Render.Benchmark Int Msg
15+bench =
16+ { name = "Baseline"
17+ , init = 0
18+ , view =
19+ \i ->
20+ Html.text (String.fromInt i)
21+ , update =
22+ \msg model ->
23+ case msg of
24+ Refresh ->
25+ model + 1
26+
27+ Tick i ->
28+ model + 1
29+ , tick = Tick
30+ , refresh = Refresh
31+ }
benchmarks/src/Render.elmnew file+135
@@ -0,0 +1,135 @@
1+port module Render exposing (Benchmark, toProgram)
2+
3+{-| -}
4+
5+import Browser
6+import Browser.Events
7+import Html exposing (Html)
8+import Json.Decode as Decode
9+import Json.Encode as Encode
10+import Time
11+
12+
13+type alias Benchmark model msg =
14+ { name : String
15+ , init : model
16+ , view : model -> Html Msg
17+ , update : msg -> model -> model
18+ , tick : Float -> msg
19+ , refresh : msg
20+ }
21+
22+
23+type alias Model model =
24+ { model : model
25+ , animating : Bool
26+ , frames : List Float
27+ }
28+
29+
30+type Msg
31+ = Tick Float
32+ | Refresh
33+ | Received Encode.Value
34+ | StartAnim
35+ | StopAnim
36+
37+
38+toProgram : Benchmark model msg -> Program () (Model model) Msg
39+toProgram render =
40+ Browser.document
41+ { init =
42+ \() ->
43+ ( { model = render.init
44+ , animating = False
45+ , frames = []
46+ }
47+ , Cmd.none
48+ )
49+ , view =
50+ \model ->
51+ { title = render.name
52+ , body = [ render.view model.model ]
53+ }
54+ , update =
55+ update render
56+ , subscriptions =
57+ \model ->
58+ Sub.batch
59+ [ worldToElm Received
60+ , if model.animating then
61+ Browser.Events.onAnimationFrameDelta Tick
62+
63+ else
64+ Sub.none
65+ ]
66+ }
67+
68+
69+update : Benchmark model msg -> Msg -> Model model -> ( Model model, Cmd Msg )
70+update render msg model =
71+ case msg of
72+ StartAnim ->
73+ ( { model | animating = True }
74+ , Cmd.none
75+ )
76+
77+ StopAnim ->
78+ ( { model | animating = False }
79+ , elmToWorld (encodeMetrics render.name model.frames)
80+ )
81+
82+ Refresh ->
83+ ( { model | model = render.update render.refresh model.model }
84+ , Cmd.none
85+ )
86+
87+ Tick time ->
88+ ( { model
89+ | model = render.update (render.tick time) model.model
90+ , frames = time :: model.frames
91+ }
92+ , Cmd.none
93+ )
94+
95+ Received json ->
96+ case Decode.decodeValue outsideMsg json of
97+ Err err ->
98+ ( model, Cmd.none )
99+
100+ Ok newMsg ->
101+ update render newMsg model
102+
103+
104+outsideMsg =
105+ Decode.field "tag" Decode.string
106+ |> Decode.andThen
107+ (\tag ->
108+ case tag of
109+ "Refresh" ->
110+ Decode.succeed Refresh
111+
112+ "StartAnim" ->
113+ Decode.succeed StartAnim
114+
115+ "StopAnim" ->
116+ Decode.succeed StopAnim
117+
118+ _ ->
119+ Decode.fail "Unknown incoming msg"
120+ )
121+
122+
123+encodeMetrics name frames =
124+ Encode.object
125+ [ ( "name", Encode.string name )
126+ , ( "frames"
127+ , Encode.list Encode.float frames
128+ )
129+ ]
130+
131+
132+port worldToElm : (Encode.Value -> msg) -> Sub msg
133+
134+
135+port elmToWorld : Encode.Value -> Cmd msg
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229+ temp "^0.8.3"
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282+ progress "^2.0.1"
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