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perf(ArcInfer/ArcSample): STEP_us on V4's real arm; ARC_SAMPLE_ON_DEVICE ends the 66 MB/step host copy that walled off the GPU sampler; 3 fast-path aggravators #222

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Merged
heydryft merged 4 commits into from
Aug 21, 2026
Merged

perf(ArcInfer/ArcSample): STEP_us on V4's real arm; ARC_SAMPLE_ON_DEVICE ends the 66 MB/step host copy that walled off the GPU sampler; 3 fast-path aggravators #222

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ee03fc7
perf(ArcInfer/ArcSample): port the STEP_us TOTAL/fwd/sample/other spl…
heydryft Aug 21, 2026
c5b3f3f
fix(ArcInfer/ArcSample): three measured fast-path aggravators + the d…
heydryft Aug 21, 2026
98572a6
test(ArcInfer/ArcSample): partition split tests — copy discipline + s…
heydryft Aug 21, 2026
6cd6999
chore(ArcInfer/ArcSample): u32::try_from for the gather row index (cl…
heydryft Aug 21, 2026
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