10580650cbfeaf3141a0cf1bb60d59c5a9f31d81
Top-down A/B/A controls: dispatching the 11 real compute shaders once removes the 1.3-1.7 s first GPU Present (resource creation alone does not); 1 worker also removes it and 8 workers bring it back. Default --gpu-far now prewarms shaders asynchronously during shape compile (--gpu-far-no-prewarm = control). The warm-up queue itself takes ~2.75 s, so whole view is unchanged: CPU 1.354 s vs GPU 3.559 s (viewer clock), 1.473 vs 3.731 s (host clock). Audits: 0 sign/topology diffs vs CPU/WARP, hashes + walk 5,642/5,642, survival. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MmSoF64BbRFmk9C3p1VsBJ
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