5370494577
This benchmark is added to test improvements in memclr_amd64. As it is stated in Intel Optimization Manual 15.16.3.3, AVX2-implemented memclr can produce a skewed result with the branch predictor being trained by the large loop iteration count. This benchmark generates sizes between some specified range. This should help to measure how memclr works when branch predictors may be incorrectly trained. Change-Id: I14d173cafe43ca47198ed920e655547a66b3909f Reviewed-on: https://go-review.googlesource.com/c/go/+/373362 Reviewed-by: Keith Randall <khr@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Keith Randall <khr@golang.org> Auto-Submit: Michael Pratt <mpratt@google.com> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Keith Randall <khr@google.com> |
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The Go Programming Language
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