1 files changed, 0 insertions, 135 deletions
diff --git a/vrsite/bench-browser.mjs b/vrsite/bench-browser.mjs
deleted file mode 100644
index 97b3a86..0000000
--- a/vrsite/bench-browser.mjs
+++ /dev/null
@@ -1,135 +0,0 @@
-#!/usr/bin/env node
-// Browser render benchmark for vrsite pages: drives headless Chrome over CDP
-// (no npm deps; node >= 22 for native WebSocket). Serves the site dir, loads
-// each page N times, reports parse/paint/load timings, node count, and the
-// cost of jumping to the bottom of the file.
-//
-//   node bench-browser.mjs SITE_DIR PAGE [PAGE...] [--shot DIR]
-
-import { spawn } from "node:child_process";
-import { createReadStream, existsSync, mkdirSync, writeFileSync } from "node:fs";
-import http from "node:http";
-import path from "node:path";
-import { tmpdir } from "node:os";
-
-const CHROME = "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome";
-const RUNS = 3;
-
-const args = process.argv.slice(2);
-const shotIdx = args.indexOf("--shot");
-let shotDir = null;
-if (shotIdx >= 0) {
-  shotDir = args[shotIdx + 1];
-  args.splice(shotIdx, 2);
-  mkdirSync(shotDir, { recursive: true });
-}
-const [siteDir, ...pages] = args;
-if (!siteDir || pages.length === 0) {
-  console.error("usage: node bench-browser.mjs SITE_DIR PAGE [PAGE...] [--shot DIR]");
-  process.exit(2);
-}
-
-// ── tiny static server ────────────────────────────────────────────────────
-const types = { html: "text/html", css: "text/css", js: "text/javascript" };
-const server = http.createServer((req, res) => {
-  const file = path.join(siteDir, decodeURIComponent(new URL(req.url, "http://x").pathname));
-  if (!existsSync(file)) { res.writeHead(404).end(); return; }
-  res.writeHead(200, { "content-type": types[path.extname(file).slice(1)] ?? "text/plain" });
-  createReadStream(file).pipe(res);
-});
-await new Promise(r => server.listen(0, r));
-const port = server.address().port;
-
-// ── chrome + CDP ──────────────────────────────────────────────────────────
-const profile = path.join(tmpdir(), "vrsite-bench-profile");
-const chrome = spawn(CHROME, [
-  "--headless=new", "--remote-debugging-port=0", `--user-data-dir=${profile}`,
-  "--no-first-run", "--disable-extensions", "--window-size=1600,1000", "about:blank",
-], { stdio: ["ignore", "ignore", "pipe"] });
-const wsUrl = await new Promise((resolve, reject) => {
-  let buf = "";
-  chrome.stderr.on("data", d => {
-    buf += d;
-    const m = buf.match(/DevTools listening on (ws:\/\/\S+)/);
-    if (m) resolve(m[1]);
-  });
-  chrome.on("exit", () => reject(new Error("chrome exited")));
-});
-const debugPort = new URL(wsUrl).port;
-const targets = await (await fetch(`http://127.0.0.1:${debugPort}/json/list`)).json();
-const pageTarget = targets.find(t => t.type === "page");
-
-const ws = new WebSocket(pageTarget.webSocketDebuggerUrl);
-await new Promise(r => (ws.onopen = r));
-let msgId = 0;
-const pending = new Map();
-const eventWaiters = new Map();
-ws.onmessage = e => {
-  const msg = JSON.parse(e.data);
-  if (msg.id && pending.has(msg.id)) { pending.get(msg.id)(msg); pending.delete(msg.id); }
-  if (msg.method && eventWaiters.has(msg.method)) {
-    eventWaiters.get(msg.method)(msg.params);
-    eventWaiters.delete(msg.method);
-  }
-};
-const cdp = (method, params = {}) => new Promise(resolve => {
-  const id = ++msgId;
-  pending.set(id, m => resolve(m.result));
-  ws.send(JSON.stringify({ id, method, params }));
-});
-const waitEvent = method => new Promise(r => eventWaiters.set(method, r));
-const evaluate = async expr => {
-  const r = await cdp("Runtime.evaluate", { expression: expr, returnByValue: true, awaitPromise: true });
-  return r.result?.value;
-};
-
-await cdp("Page.enable");
-await cdp("Runtime.enable");
-
-const median = a => [...a].sort((x, y) => x - y)[a.length >> 1];
-
-console.log("page                                     kB   nodes    parse     FCP     DCL    load  toBottom");
-for (const p of pages) {
-  const url = `http://127.0.0.1:${port}/${p}`;
-  const runs = [];
-  for (let i = 0; i < RUNS; i++) {
-    const loaded = waitEvent("Page.loadEventFired");
-    await cdp("Page.navigate", { url });
-    await loaded;
-    const m = await evaluate(`(async () => {
-      await new Promise(r => requestAnimationFrame(() => requestAnimationFrame(r)));
-      const nav = performance.getEntriesByType("navigation")[0];
-      const fcp = performance.getEntriesByType("paint").find(e => e.name === "first-contentful-paint");
-      const t0 = performance.now();
-      window.scrollTo(0, document.body.scrollHeight);
-      await new Promise(r => requestAnimationFrame(() => requestAnimationFrame(r)));
-      const toBottom = performance.now() - t0;
-      return JSON.stringify({
-        kb: Math.round(nav.transferSize / 1024),
-        nodes: document.getElementsByTagName("*").length,
-        parse: Math.round(nav.domInteractive),
-        fcp: Math.round(fcp?.startTime ?? -1),
-        dcl: Math.round(nav.domContentLoadedEventEnd),
-        load: Math.round(nav.loadEventEnd),
-        toBottom: Math.round(toBottom),
-      });
-    })()`);
-    runs.push(JSON.parse(m));
-  }
-  const med = k => median(runs.map(r => r[k]));
-  console.log(
-    p.padEnd(38) + String(med("kb")).padStart(6) + String(med("nodes")).padStart(8) +
-    String(med("parse")).padStart(9) + String(med("fcp")).padStart(8) +
-    String(med("dcl")).padStart(8) + String(med("load")).padStart(8) +
-    String(med("toBottom")).padStart(10));
-  if (shotDir) {
-    await evaluate(`window.scrollTo(0, 0)`);
-    await evaluate(`new Promise(r => requestAnimationFrame(() => requestAnimationFrame(r)))`);
-    const shot = await cdp("Page.captureScreenshot", { format: "png" });
-    writeFileSync(path.join(shotDir, p.replaceAll("/", "_") + ".png"), Buffer.from(shot.data, "base64"));
-  }
-}
-
-chrome.kill();
-server.close();
-process.exit(0);