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bench: jetson FPS battery — both backends saturate at 80.9 MB scale

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Parameterizes the throttle-sweep FPS battery (fpsBattery helper) and adds a
jetson-agx-thor run: asyncify raf 2.1-5.3 / distinct 0.2-0.8 vs JSPI raf
1.9-5.0 / distinct 0.1-0.7 — indistinguishable. Suspension overhead is a
per-event-loop-turn cost; at hundreds of ms of GAL work per frame it stops
discriminating. vme-wren (~27 MB) remains the discriminating size class.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016X9eh1s5sTx1o9Em9KBuwR
This commit is contained in:
Viktor Vaczi 2026-08-14 12:07:18 +02:00
commit e652810de7
4 changed files with 53 additions and 6 deletions
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35
tests/kicad/pcbnew-large-perf.spec.ts
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@ -118,11 +118,18 @@ test.describe('pcbnew large-board bench', () => {
});
}
test('FPS on vme-wren across throttles', async ({ page, testLogger }) => {
test.setTimeout(900000);
// Shared throttle-sweep FPS battery: load editor, fetch+open the board,
// then rAF + distinct-glcanvas-frame FPS at each throttle rate.
async function fpsBattery(
page: Parameters<Parameters<typeof test>[2]>[0]['page'],
testLogger: { consoleLogs: string[]; errors: string[] },
boardUrl: string,
memfsPath: string,
section: string,
): Promise<void> {
await measureLoad(page, '/kicad/pcbnew.html');
await fetchIntoMemfs(page, VME_URL, '/home/kicad/documents/vme-wren.kicad_pcb');
await openAndWait(page, '/home/kicad/documents/vme-wren.kicad_pcb', 'board', testLogger, 480000);
await fetchIntoMemfs(page, boardUrl, memfsPath);
await openAndWait(page, memfsPath, 'board', testLogger, 780000);
await page.keyboard.press('Escape').catch(() => {}); // eslint-disable-line -- best-effort Escape
const cdp = await page.context().newCDPSession(page);
@ -130,13 +137,29 @@ test.describe('pcbnew large-board bench', () => {
await setThrottle(cdp, rate);
for (let rep = 0; rep < FPS_REPS; rep++) {
const f = await measureFpsDetailed(page, FPS_SECS);
record('fps-vme', { throttle: rate, rep: rep + 1, ...f });
record(section, { throttle: rate, rep: rep + 1, ...f });
expect(f.rafFps).toBeGreaterThan(0);
}
}
await setThrottle(cdp, 1);
const mem = await sampleMemory(page);
record('fps-vme-postmem', { postFpsMem: mem });
record(`${section}-postmem`, { postFpsMem: mem });
}
test('FPS on vme-wren across throttles', async ({ page, testLogger }) => {
test.setTimeout(900000);
await fpsBattery(page, testLogger, VME_URL, '/home/kicad/documents/vme-wren.kicad_pcb', 'fps-vme');
});
test('FPS on jetson-agx-thor across throttles', async ({ page, testLogger }) => {
test.setTimeout(900000);
await fpsBattery(
page,
testLogger,
JETSON_URL,
'/home/kicad/documents/jetson-agx-thor-baseboard.kicad_pcb',
'fps-jetson',
);
});
test('open jetson-agx-thor (80.9 MB) — outcome, OOM allowed', async ({ page, testLogger }) => {