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test(perf): track-only runtime-perf E2E for eeschema + pcbnew

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Measures the current build's cold load, open+render, and pan/zoom FPS
(1x/4x/6x CPU-throttle sweep) for both editors, writing
tests/test-results/perf-*.json. Track-only: asserts only that the app booted
and the document opened — no perf thresholds, so it never gates CI.

Runs on a new Chromium `perf` Playwright project (CDP throttling; pcbnew needs
V8 anyway) via `npm run test:perf`, and is wired into wasm-build.yml as a
continue-on-error step so the numbers are captured/uploaded without flaking the
gate. Reuses the existing fixtures, ready-signal, fs-inject, and board-ready
helpers; FPS counter is cancel-able so a throttle sweep on one page doesn't
accumulate rAF loops.

.gitignore: ignore /benchmark-builds/ (disposable prebuilt-WASM + standalone
harness bundle used to reproduce the native-vs-JS-EH comparison locally).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Viktor Vaczi 2026-07-01 14:43:54 +02:00
commit 3e5791774b
7 changed files with 268 additions and 3 deletions
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47
tests/kicad/eeschema-perf.spec.ts Normal file
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import { test, expect } from './fixtures';
import * as path from 'path';
import { measureLoad, measureOpenRender, measureFps, setThrottle, recordPerf } from './utils/perf-utils';
/**
* eeschema runtime-perf (TRACK-ONLY, no gating).
*
* Measures the CURRENT build: cold load, open+render of the demo schematic, and
* sustained pan/zoom FPS across CPU-throttle rates. Numbers are logged and written
* to tests/test-results/perf-eeschema.json (CI uploads it). The only assertions are
* "the app booted and the doc opened" — never a perf threshold (would flake CI).
* Runs on the Chromium 'perf' project (CDP throttling); pass --headed for real-GPU FPS.
* Note: on headless/SwiftShader CI, FPS is CPU-bound and noisy — openMs is the stable metric.
*/
const THROTTLES = (process.env.PERF_THROTTLES || '1,4,6').split(',').map(Number);
const FPS_SECS = parseInt(process.env.PERF_FPS_SECS || '6', 10);
const DEMO = path.join(__dirname, '..', 'fixtures', 'demo', 'demo.kicad_sch');
test.describe('eeschema perf', () => {
test('load + open+render + FPS (track-only)', async ({ page, testLogger }) => {
test.setTimeout(300000);
const loadMs = await measureLoad(page, '/kicad/eeschema.html');
console.log(`[perf] eeschema cold load = ${loadMs} ms`);
const openMs = await measureOpenRender(page, DEMO, 'schematic', testLogger);
console.log(`[perf] eeschema open+render = ${openMs} ms`);
await page.keyboard.press('Escape').catch(() => {});
const cdp = await page.context().newCDPSession(page);
const fps: { throttle: number; fps: number }[] = [];
for (const rate of THROTTLES) {
await setThrottle(cdp, rate);
const f = await measureFps(page, FPS_SECS);
console.log(`[perf] eeschema FPS @ ${rate}x = ${f}`);
fps.push({ throttle: rate, fps: f });
}
await setThrottle(cdp, 1);
recordPerf('eeschema', { loadMs, openMs, fps });
// Track-only: assert only that it booted + opened.
expect(loadMs).toBeGreaterThan(0);
expect(openMs).toBeGreaterThan(0);
});
});