[HeyGarrison]

Summary

Browser providers report Wikipedia answering 429 during our runs. The browser runs on the provider's network, so every page load comes from that provider's egress IPs: the CI default of 100 sessions back to back (sessions take ~3–5s) is ~300 Wikipedia loads in ~6 minutes from one range, which the loop then records as the provider's failure (Oct 16 daily: kernel 60 actions, hyperbrowser 36, steel 4 all status=429).

browser-throughput.bench.ts now sets staggerDelayMs: 15_000 in its config. The bench runs with groupBy: 'round', where the runner sleeps staggerDelayMs between rounds — with --provider X in CI each round is one session, so this is a fixed gap between sessions. The sleep is outside every timed action, so actionsPerSecond / taskMs / screenshotMs are unchanged; a scheduled run goes from ~6 min to ~32 min per provider (within the 60-min job timeout and the daily 90-min deadline). --stagger-delay-ms still overrides it per invocation.

Not changed: browser.bench.ts (navigates example.com only) and the stealth concurrency sweep (its c-level bursts are the thing being measured; spacing them would change the metric).

Link to Devin session: https://app.devin.ai/sessions/504ed394c05242fca787c1737e55fe48
Open in Devin Desktop: https://app.devin.ai/desktop/session/504ed394c05242fca787c1737e55fe48?variant=devin
Requested by: @HeyGarrison

[devin-ai-integration]

I'll fix CI failures and address comments from users with write access. I'll skip comments containing "(aside)".

• Disable automatic comment, CI, and merge conflict monitoring

[open-cla]

Contributor License Agreement

All contributors are covered by a CLA.

[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no bugs or issues to report.

[computesdk]

Browser Benchmark Results

#	Provider	Score	Create	Connect	Navigate	Release	Total	Status
1	Kernel	97.3	0.04s	0.04s	0.16s	0.05s	0.32s	10/10
2	Browseruse	96.7	0.19s	0.03s	0.06s	0.03s	0.32s	10/10
3	Tilion	94.5	0.04s	0.07s	0.07s	0.02s	0.36s	10/10
4	Browserbase	93.6	0.15s	0.23s	0.17s	0.13s	0.75s	10/10
5	Hyperbrowser	93.1	0.22s	0.16s	0.22s	0.09s	0.72s	10/10
6	Steel	87.0	0.39s	0.68s	0.16s	0.24s	1.48s	10/10
7	Notte	76.4	0.37s	0.41s	0.75s	0.10s	1.70s	9/10

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[computesdk]

Browser Throughput Benchmark Results

#	Provider	Score	APS (med)	Task (med)	Task (p95)	Screenshot	Status
1	Tilion	86.5	7.27/s	1.38s	2.06s	103ms	3/3
2	Browserbase	80.4	5.80/s	1.73s	1.91s	155ms	3/3
3	Steel	68.3	3.27/s	3.06s	3.19s	297ms	3/3
4	Browseruse	46.7	3.60/s	2.41s	3.29s	325ms	2/3
5	Hyperbrowser	45.6	3.28/s	2.84s	3.28s	342ms	2/3
6	Kernel	31.0	8.48/s	0.14s	1.18s	184ms	1/3
7	Notte	0.0	0.00/s	0.17s	0.77s	0ms	0/3

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