mirror of
https://github.com/vercel-labs/scriptc.git
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Malte Ubl
10b246d604
Fourteen application-shaped workloads (JSON, regex, parsing and class dispatch, sorting, rendering, collection pipelines, async fan-out, Map/Set graphs, allocation, numeric kernels, exceptions, CSV, and the two multi-module build benchmark apps on large inputs). bench:runtime builds each workload with one or two checkouts, refuses to time any executable whose stdout, stderr, or exit status differs from Node, interleaves baseline and candidate launches, and reports medians with bootstrap 95% confidence intervals, binary size, and peak RSS.
74 lines
2.5 KiB
TypeScript
74 lines
2.5 KiB
TypeScript
// Server-side HTML rendering: template literals, escaping, joins, and
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// conditional fragments over a list of typed view models.
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interface Product {
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id: number;
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title: string;
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description: string;
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price: number;
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tags: string[];
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inStock: boolean;
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rating: number;
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}
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let seed = 31337;
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function random(): number {
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seed = (Math.imul(seed, 1103515245) + 12345) >>> 0;
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return seed / 4294967296;
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}
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const words = ["fast", "durable", "<b>bold</b>", "eco", '"quoted"', "light", "smart", "R&D", "classic", "modern"];
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function sentence(n: number): string {
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const parts: string[] = [];
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for (let i = 0; i < n; i++) parts.push(words[Math.floor(random() * words.length)]!);
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return parts.join(" ");
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}
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function makeProducts(count: number): Product[] {
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const products: Product[] = [];
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for (let i = 0; i < count; i++) {
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products.push({
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id: i,
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title: sentence(3),
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description: sentence(20),
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price: Math.round(random() * 100000) / 100,
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tags: [words[i % words.length]!, words[(i * 7) % words.length]!],
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inStock: random() < 0.8,
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rating: Math.round(random() * 50) / 10,
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});
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}
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return products;
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}
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function escapeHtml(text: string): string {
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return text.replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">").replace(/"/g, """);
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}
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function stars(rating: number): string {
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let out = "";
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for (let i = 1; i <= 5; i++) out += i <= Math.round(rating) ? "*" : "-";
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return out;
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}
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function renderProduct(p: Product): string {
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const tags = p.tags.map((t) => `<li class="tag">${escapeHtml(t)}</li>`).join("");
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return `<article id="p-${p.id}" class="${p.inStock ? "in" : "out"}">
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<h2>${escapeHtml(p.title)}</h2>
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<p>${escapeHtml(p.description)}</p>
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<span class="price">$${p.price.toFixed(2)}</span>
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<span class="rating" title="${p.rating}">${stars(p.rating)}</span>
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<ul>${tags}</ul>
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${p.inStock ? "<button>Add to cart</button>" : "<em>Sold out</em>"}
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</article>`;
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}
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function renderPage(products: Product[], page: number): string {
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const body = products.map(renderProduct).join("\n");
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return `<!doctype html><html><head><title>Page ${page}</title></head><body>${body}</body></html>`;
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}
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const scale = Number(process.argv[2] ?? "1");
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const products = makeProducts(Math.floor(2000 * scale));
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let bytes = 0;
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let hash = 0;
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for (let page = 0; page < 10; page++) {
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const html = renderPage(products, page);
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bytes += html.length;
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for (let i = 0; i < html.length; i += 101) hash = (hash * 33 + html.charCodeAt(i)) % 2147483647;
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}
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console.log("bytes", bytes, "hash", hash);
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