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Different systems prefer a different divisors. From benchmarks[1] so far the following divisors have been found: ICX : 2 SKX : 2 BWD : 8 For Intel, we are generalizing that BWD and older prefers 8 as a divisor, and SKL and newer prefers 2. This number can be further tuned as benchmarks are run. [1]: https://github.com/goldsteinn/memcpy-nt-benchmarks Reviewed-by: DJ Delorie <dj@redhat.com> |
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cpu-features-preferred_feature_index_1.def | ||
cpu-features.h |