Files
bitvid/scripts/perf/loop-capture-login.mjs
T
thePR0M3TH3ANandClaude Opus 4.8 35c4e68cde chore(perf): add nip-07/relay diagnostic harnesses + dev REQ monitor
Headless Playwright probes that reproduce the real login path via a fake
window.nostr extension (which loginWithNsec bypasses) and measure
steady-state extension-call and relay-REQ rates:
- nip07-heat.mjs, req-capture.mjs, ws-lifecycle.mjs, loopc-capture.mjs, etc.

Plus js/devReqMonitor.js: a localhost-only WebSocket REQ-rate monitor that
warns in-console when relay traffic spikes, naming the storming kinds — used
to capture the real-environment storm the mock-relay harness could not see.
Removable once the refactor lands.

Co-Authored-By: Claude Opus 4.8 <[email protected]>
2026-06-14 09:52:41 -04:00

75 lines
2.5 KiB
JavaScript

// Headless console capture WHILE LOGGED IN via the test harness (nsec).
// Reproduces a structural (data-independent) logged-in CPU loop.
//
// Usage: node scripts/perf/loop-capture-login.mjs [seconds]
import { chromium } from "playwright";
import { randomBytes } from "node:crypto";
const seconds = Number(process.argv[2] || 12);
const url = "http://localhost:3000/?__test__=1";
const hexKey = randomBytes(32).toString("hex");
const counts = new Map();
const firstSeen = new Map();
const pageErrors = [];
const normalize = (t) =>
t
.replace(/[0-9a-f]{16,}/gi, "<hex>")
.replace(/\b\d{10,}\b/g, "<ts>")
.replace(/\b\d+(\.\d+)?ms\b/g, "<ms>")
.slice(0, 200);
const browser = await chromium.launch({ headless: true });
const page = await (await browser.newContext()).newPage();
page.on("console", (msg) => {
const text = `${msg.type().toUpperCase()} ${msg.text()}`;
const key = normalize(text);
counts.set(key, (counts.get(key) || 0) + 1);
if (!firstSeen.has(key)) firstSeen.set(key, text);
});
page.on("pageerror", (e) => pageErrors.push(e.message));
await page.goto(url, { waitUntil: "domcontentloaded", timeout: 30000 });
// Wait for the harness, then log in with a throwaway key.
let loggedIn = false;
try {
await page.waitForFunction(() => !!window.__bitvidTest__?.loginWithNsec, {
timeout: 15000,
});
const res = await page.evaluate(async (k) => {
try {
await window.__bitvidTest__.loginWithNsec(k);
return window.__bitvidTest__.getAppState();
} catch (e) {
return { error: String(e) };
}
}, hexKey);
loggedIn = !res?.error;
console.log("login result:", JSON.stringify(res)?.slice(0, 300));
} catch (e) {
console.log("harness/login error:", e.message);
}
// Reset counters to measure the steady post-login state.
counts.clear();
firstSeen.clear();
const start = Date.now();
await page.waitForTimeout(seconds * 1000);
const elapsed = (Date.now() - start) / 1000;
await browser.close();
const sorted = [...counts.entries()].sort((a, b) => b[1] - a[1]);
console.log(`\n=== Logged-in capture (${elapsed.toFixed(1)}s, loggedIn=${loggedIn}) ===`);
console.log(`Distinct lines: ${sorted.length}`);
console.log("TOP REPEATED LINES (count → rate → sample):");
for (const [key, n] of sorted.slice(0, 18)) {
console.log(` ${String(n).padStart(6)} (${(n / elapsed).toFixed(1)}/s) ${firstSeen.get(key)}`);
}
if (pageErrors.length) {
console.log(`\nPAGE ERRORS (${pageErrors.length}):`);
for (const e of pageErrors.slice(0, 10)) console.log(" ✗ " + e);
}
console.log("");