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Harden Live production benchmarks and turn failures

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This commit is contained in:
Paul Bakaus
2026-07-13 10:19:42 -07:00
parent db63d08168
commit e9121b26fe
3 changed files with 65 additions and 25 deletions
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scripts/benchmark-live.mjs
+29 -24
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@@ -557,34 +557,39 @@ async function waitForReset(page) {
}
async function installBrowserTimingProbe(page) {
await page.evaluate(() => {
const state = { iteration: 0, goAt: null, generateAt: null };
window.__IMPECCABLE_LIVE_BENCH_TIMING__ = state;
const root = window.__IMPECCABLE_LIVE_CHROME_CORE__?.root?.()
|| window.__IMPECCABLE_LIVE_UI_ROOT__
|| document;
root.addEventListener('click', (event) => {
const button = event.composedPath().find((node) =>
node?.getAttribute?.('aria-label') === 'Generate variants'
);
if (button) state.goAt = performance.now();
}, true);
await page.addInitScript(installBrowserTimingProbeInPage);
await page.evaluate(installBrowserTimingProbeInPage);
}
const originalFetch = window.fetch.bind(window);
window.fetch = (input, init) => {
try {
const url = typeof input === 'string' ? input : input?.url;
if (String(url || '').endsWith('/events') && init?.method === 'POST') {
const payload = typeof init.body === 'string' ? JSON.parse(init.body) : null;
if (payload?.type === 'generate') state.generateAt = performance.now();
}
} catch { /* measurement must never affect Live */ }
return originalFetch(input, init);
};
});
function installBrowserTimingProbeInPage() {
if (window.__IMPECCABLE_LIVE_BENCH_TIMING__?.installed === true) return;
const state = { iteration: 0, goAt: null, generateAt: null, installed: true };
window.__IMPECCABLE_LIVE_BENCH_TIMING__ = state;
const root = window.__IMPECCABLE_LIVE_CHROME_CORE__?.root?.()
|| window.__IMPECCABLE_LIVE_UI_ROOT__
|| document;
root.addEventListener('click', (event) => {
const button = event.composedPath().find((node) =>
node?.getAttribute?.('aria-label') === 'Generate variants'
);
if (button) state.goAt = performance.now();
}, true);
const originalFetch = window.fetch.bind(window);
window.fetch = (input, init) => {
try {
const url = typeof input === 'string' ? input : input?.url;
if (String(url || '').endsWith('/events') && init?.method === 'POST') {
const payload = typeof init.body === 'string' ? JSON.parse(init.body) : null;
if (payload?.type === 'generate') state.generateAt = performance.now();
}
} catch { /* measurement must never affect Live */ }
return originalFetch(input, init);
};
}
async function resetBrowserTimingProbe(page, iteration) {
await page.evaluate(installBrowserTimingProbeInPage);
await page.evaluate((nextIteration) => {
const state = window.__IMPECCABLE_LIVE_BENCH_TIMING__;
if (!state) return;