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perf(diag): complete trustworthy Slice A capture tooling

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Correct whole-frame GPU timestamps so they bracket only the accepted render transaction and associate delayed query results with the owning CPU frame. Add route-wide frame-history summaries, fixed-camera screenshot comparison, process counters, contention traces, a pinned Arwic workload, and credential-safe launch disclosure.

The reference hardware/display contract now keeps local and RDP populations separate and defines the screenshot and re-baseline rules needed by later prepared-content gates.

Co-Authored-By: Codex <noreply@openai.com>
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Erik 2026-07-24 12:46:51 +02:00
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docs/research/2026-07-24-performance-reference-configuration.md Normal file
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# Performance reference configuration
The machine-readable contract is
[`2026-07-24-performance-reference-configuration.json`](2026-07-24-performance-reference-configuration.json).
It fixes the reference CPU/GPU/driver/OS, graphical settings, routes, display
paths, screenshot rule, and re-baseline policy used by the Modern Runtime
Architecture plan.
Only the physical AMD display path is authoritative for frame-time, CPU, and
GPU acceptance gates. Remote Desktop runs are intentionally retained as a
separate diagnostic population: they validate the connected route, resource
lifetime, allocation attribution, and major regressions, but the 32 Hz remote
presentation path cannot establish maximum throughput.
The connected routes pin the client-only world-time override at noon. The
dense-town route uses ACE's canonical Arwic point-of-interest arrival and a
fixed six-second retail-input turn before its screenshot and checkpoint.
Screenshot comparison uses a per-channel tolerance of 2 and permits at most
0.1% differing unmasked pixels. Dynamic particles or similarly nondeterministic
pixels require an explicit same-resolution alpha mask; a failure is not
accepted by silently increasing the global tolerance.