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A comment on RDRAND on AMD Ryzen 9 5900X is flakey. Parent comment
The intrinsic used is the 32-bit version of RDRAND, which is... suboptimal... for a test like this. As you've noted.
Even then, RDRAND has no entropy guarantees (again: see my top comment about RDSEED vs RDRAND).
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The intrinsic used is the 32-bit version of RDRAND, which is... suboptimal... for a test like this. As you've noted.
Even then, RDRAND has no entropy guarantees (again: see my top comment about RDSEED vs RDRAND).