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Confirm reproducibility: clean main build matches dev build performance

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@@ -145,13 +145,12 @@ Two things worth internalizing:
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  **Strict verification is nearly free** (95.5 vs 96.1 t/s, ~0.5%) and guarantees output
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  identical to non-speculative greedy decoding. Leave it on.
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- ### Build provenance (please read before comparing numbers)
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- Measurements were taken with a build carrying some local modifications on top of the
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- public tree. The ROCmFP2 Vulkan MMVQ fast path the kernel that determines decode
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- throughput for this quantization **is** on `main`, so a current clean clone should
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- reach comparable numbers. It is still not a bit-for-bit reproduction of the benchmarking
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- binary, so treat the tables as indicative rather than exact, and see the variance note
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  below before drawing conclusions from small differences.
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  ### Throughput
 
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  **Strict verification is nearly free** (95.5 vs 96.1 t/s, ~0.5%) and guarantees output
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  identical to non-speculative greedy decoding. Leave it on.
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+ ### Reproducibility
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+ A clean build of `main` was benchmarked against the development build on the same
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+ model and flags, and they are indistinguishablepp512 1252 vs 1256 t/s, tg128
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+ 65.11 vs 65.09 t/s, well inside run-to-run noise. **The public repo delivers the full
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+ ROCmFP2 performance**; nothing here depends on unpublished work. See the variance note
 
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  below before drawing conclusions from small differences.
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  ### Throughput