--- /dev/null
+// Copyright ©2016 The Gonum Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package f64
+
+import (
+ "math"
+ "testing"
+)
+
+func benchL1Norm(f func(x []float64) float64, sz int, t *testing.B) {
+ dst := y[:sz]
+ for i := 0; i < t.N; i++ {
+ f(dst)
+ }
+}
+
+var naiveL1Norm = func(x []float64) (sum float64) {
+ for _, v := range x {
+ sum += math.Abs(v)
+ }
+ return sum
+}
+
+func BenchmarkL1Norm1(t *testing.B) { benchL1Norm(L1Norm, 1, t) }
+func BenchmarkL1Norm2(t *testing.B) { benchL1Norm(L1Norm, 2, t) }
+func BenchmarkL1Norm3(t *testing.B) { benchL1Norm(L1Norm, 3, t) }
+func BenchmarkL1Norm4(t *testing.B) { benchL1Norm(L1Norm, 4, t) }
+func BenchmarkL1Norm5(t *testing.B) { benchL1Norm(L1Norm, 5, t) }
+func BenchmarkL1Norm10(t *testing.B) { benchL1Norm(L1Norm, 10, t) }
+func BenchmarkL1Norm100(t *testing.B) { benchL1Norm(L1Norm, 100, t) }
+func BenchmarkL1Norm1000(t *testing.B) { benchL1Norm(L1Norm, 1000, t) }
+func BenchmarkL1Norm10000(t *testing.B) { benchL1Norm(L1Norm, 10000, t) }
+func BenchmarkL1Norm100000(t *testing.B) { benchL1Norm(L1Norm, 100000, t) }
+func BenchmarkL1Norm500000(t *testing.B) { benchL1Norm(L1Norm, 500000, t) }
+
+func BenchmarkLL1Norm1(t *testing.B) { benchL1Norm(naiveL1Norm, 1, t) }
+func BenchmarkLL1Norm2(t *testing.B) { benchL1Norm(naiveL1Norm, 2, t) }
+func BenchmarkLL1Norm3(t *testing.B) { benchL1Norm(naiveL1Norm, 3, t) }
+func BenchmarkLL1Norm4(t *testing.B) { benchL1Norm(naiveL1Norm, 4, t) }
+func BenchmarkLL1Norm5(t *testing.B) { benchL1Norm(naiveL1Norm, 5, t) }
+func BenchmarkLL1Norm10(t *testing.B) { benchL1Norm(naiveL1Norm, 10, t) }
+func BenchmarkLL1Norm100(t *testing.B) { benchL1Norm(naiveL1Norm, 100, t) }
+func BenchmarkLL1Norm1000(t *testing.B) { benchL1Norm(naiveL1Norm, 1000, t) }
+func BenchmarkLL1Norm10000(t *testing.B) { benchL1Norm(naiveL1Norm, 10000, t) }
+func BenchmarkLL1Norm100000(t *testing.B) { benchL1Norm(naiveL1Norm, 100000, t) }
+func BenchmarkLL1Norm500000(t *testing.B) { benchL1Norm(naiveL1Norm, 500000, t) }
+
+func benchL1NormInc(t *testing.B, ln, inc int, f func(x []float64, n, incX int) float64) {
+ for i := 0; i < t.N; i++ {
+ f(x, ln, inc)
+ }
+}
+
+var naiveL1NormInc = func(x []float64, n, incX int) (sum float64) {
+ for i := 0; i < n*incX; i += incX {
+ sum += math.Abs(x[i])
+ }
+ return sum
+}
+
+func BenchmarkF64L1NormIncN1Inc1(b *testing.B) { benchL1NormInc(b, 1, 1, L1NormInc) }
+
+func BenchmarkF64L1NormIncN2Inc1(b *testing.B) { benchL1NormInc(b, 2, 1, L1NormInc) }
+func BenchmarkF64L1NormIncN2Inc2(b *testing.B) { benchL1NormInc(b, 2, 2, L1NormInc) }
+func BenchmarkF64L1NormIncN2Inc4(b *testing.B) { benchL1NormInc(b, 2, 4, L1NormInc) }
+func BenchmarkF64L1NormIncN2Inc10(b *testing.B) { benchL1NormInc(b, 2, 10, L1NormInc) }
+
+func BenchmarkF64L1NormIncN3Inc1(b *testing.B) { benchL1NormInc(b, 3, 1, L1NormInc) }
+func BenchmarkF64L1NormIncN3Inc2(b *testing.B) { benchL1NormInc(b, 3, 2, L1NormInc) }
+func BenchmarkF64L1NormIncN3Inc4(b *testing.B) { benchL1NormInc(b, 3, 4, L1NormInc) }
+func BenchmarkF64L1NormIncN3Inc10(b *testing.B) { benchL1NormInc(b, 3, 10, L1NormInc) }
+
+func BenchmarkF64L1NormIncN4Inc1(b *testing.B) { benchL1NormInc(b, 4, 1, L1NormInc) }
+func BenchmarkF64L1NormIncN4Inc2(b *testing.B) { benchL1NormInc(b, 4, 2, L1NormInc) }
+func BenchmarkF64L1NormIncN4Inc4(b *testing.B) { benchL1NormInc(b, 4, 4, L1NormInc) }
+func BenchmarkF64L1NormIncN4Inc10(b *testing.B) { benchL1NormInc(b, 4, 10, L1NormInc) }
+
+func BenchmarkF64L1NormIncN10Inc1(b *testing.B) { benchL1NormInc(b, 10, 1, L1NormInc) }
+func BenchmarkF64L1NormIncN10Inc2(b *testing.B) { benchL1NormInc(b, 10, 2, L1NormInc) }
+func BenchmarkF64L1NormIncN10Inc4(b *testing.B) { benchL1NormInc(b, 10, 4, L1NormInc) }
+func BenchmarkF64L1NormIncN10Inc10(b *testing.B) { benchL1NormInc(b, 10, 10, L1NormInc) }
+
+func BenchmarkF64L1NormIncN1000Inc1(b *testing.B) { benchL1NormInc(b, 1000, 1, L1NormInc) }
+func BenchmarkF64L1NormIncN1000Inc2(b *testing.B) { benchL1NormInc(b, 1000, 2, L1NormInc) }
+func BenchmarkF64L1NormIncN1000Inc4(b *testing.B) { benchL1NormInc(b, 1000, 4, L1NormInc) }
+func BenchmarkF64L1NormIncN1000Inc10(b *testing.B) { benchL1NormInc(b, 1000, 10, L1NormInc) }
+
+func BenchmarkF64L1NormIncN100000Inc1(b *testing.B) { benchL1NormInc(b, 100000, 1, L1NormInc) }
+func BenchmarkF64L1NormIncN100000Inc2(b *testing.B) { benchL1NormInc(b, 100000, 2, L1NormInc) }
+func BenchmarkF64L1NormIncN100000Inc4(b *testing.B) { benchL1NormInc(b, 100000, 4, L1NormInc) }
+func BenchmarkF64L1NormIncN100000Inc10(b *testing.B) { benchL1NormInc(b, 100000, 10, L1NormInc) }
+
+func BenchmarkLF64L1NormIncN1Inc1(b *testing.B) { benchL1NormInc(b, 1, 1, naiveL1NormInc) }
+
+func BenchmarkLF64L1NormIncN2Inc1(b *testing.B) { benchL1NormInc(b, 2, 1, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN2Inc2(b *testing.B) { benchL1NormInc(b, 2, 2, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN2Inc4(b *testing.B) { benchL1NormInc(b, 2, 4, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN2Inc10(b *testing.B) { benchL1NormInc(b, 2, 10, naiveL1NormInc) }
+
+func BenchmarkLF64L1NormIncN3Inc1(b *testing.B) { benchL1NormInc(b, 3, 1, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN3Inc2(b *testing.B) { benchL1NormInc(b, 3, 2, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN3Inc4(b *testing.B) { benchL1NormInc(b, 3, 4, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN3Inc10(b *testing.B) { benchL1NormInc(b, 3, 10, naiveL1NormInc) }
+
+func BenchmarkLF64L1NormIncN4Inc1(b *testing.B) { benchL1NormInc(b, 4, 1, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN4Inc2(b *testing.B) { benchL1NormInc(b, 4, 2, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN4Inc4(b *testing.B) { benchL1NormInc(b, 4, 4, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN4Inc10(b *testing.B) { benchL1NormInc(b, 4, 10, naiveL1NormInc) }
+
+func BenchmarkLF64L1NormIncN10Inc1(b *testing.B) { benchL1NormInc(b, 10, 1, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN10Inc2(b *testing.B) { benchL1NormInc(b, 10, 2, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN10Inc4(b *testing.B) { benchL1NormInc(b, 10, 4, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN10Inc10(b *testing.B) { benchL1NormInc(b, 10, 10, naiveL1NormInc) }
+
+func BenchmarkLF64L1NormIncN1000Inc1(b *testing.B) { benchL1NormInc(b, 1000, 1, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN1000Inc2(b *testing.B) { benchL1NormInc(b, 1000, 2, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN1000Inc4(b *testing.B) { benchL1NormInc(b, 1000, 4, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN1000Inc10(b *testing.B) { benchL1NormInc(b, 1000, 10, naiveL1NormInc) }
+
+func BenchmarkLF64L1NormIncN100000Inc1(b *testing.B) { benchL1NormInc(b, 100000, 1, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN100000Inc2(b *testing.B) { benchL1NormInc(b, 100000, 2, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN100000Inc4(b *testing.B) { benchL1NormInc(b, 100000, 4, naiveL1NormInc) }
+func BenchmarkLF64L1NormIncN100000Inc10(b *testing.B) { benchL1NormInc(b, 100000, 10, naiveL1NormInc) }
+
+func benchAdd(f func(dst, s []float64), sz int, t *testing.B) {
+ dst, s := y[:sz], x[:sz]
+ for i := 0; i < t.N; i++ {
+ f(dst, s)
+ }
+}
+
+var naiveAdd = func(dst, s []float64) {
+ for i, v := range s {
+ dst[i] += v
+ }
+}
+
+func BenchmarkAdd1(t *testing.B) { benchAdd(Add, 1, t) }
+func BenchmarkAdd2(t *testing.B) { benchAdd(Add, 2, t) }
+func BenchmarkAdd3(t *testing.B) { benchAdd(Add, 3, t) }
+func BenchmarkAdd4(t *testing.B) { benchAdd(Add, 4, t) }
+func BenchmarkAdd5(t *testing.B) { benchAdd(Add, 5, t) }
+func BenchmarkAdd10(t *testing.B) { benchAdd(Add, 10, t) }
+func BenchmarkAdd100(t *testing.B) { benchAdd(Add, 100, t) }
+func BenchmarkAdd1000(t *testing.B) { benchAdd(Add, 1000, t) }
+func BenchmarkAdd10000(t *testing.B) { benchAdd(Add, 10000, t) }
+func BenchmarkAdd100000(t *testing.B) { benchAdd(Add, 100000, t) }
+func BenchmarkAdd500000(t *testing.B) { benchAdd(Add, 500000, t) }
+
+func BenchmarkLAdd1(t *testing.B) { benchAdd(naiveAdd, 1, t) }
+func BenchmarkLAdd2(t *testing.B) { benchAdd(naiveAdd, 2, t) }
+func BenchmarkLAdd3(t *testing.B) { benchAdd(naiveAdd, 3, t) }
+func BenchmarkLAdd4(t *testing.B) { benchAdd(naiveAdd, 4, t) }
+func BenchmarkLAdd5(t *testing.B) { benchAdd(naiveAdd, 5, t) }
+func BenchmarkLAdd10(t *testing.B) { benchAdd(naiveAdd, 10, t) }
+func BenchmarkLAdd100(t *testing.B) { benchAdd(naiveAdd, 100, t) }
+func BenchmarkLAdd1000(t *testing.B) { benchAdd(naiveAdd, 1000, t) }
+func BenchmarkLAdd10000(t *testing.B) { benchAdd(naiveAdd, 10000, t) }
+func BenchmarkLAdd100000(t *testing.B) { benchAdd(naiveAdd, 100000, t) }
+func BenchmarkLAdd500000(t *testing.B) { benchAdd(naiveAdd, 500000, t) }
+
+func benchAddConst(f func(a float64, x []float64), sz int, t *testing.B) {
+ a, x := 1., x[:sz]
+ for i := 0; i < t.N; i++ {
+ f(a, x)
+ }
+}
+
+var naiveAddConst = func(a float64, x []float64) {
+ for i := range x {
+ x[i] += a
+ }
+}
+
+func BenchmarkAddConst1(t *testing.B) { benchAddConst(AddConst, 1, t) }
+func BenchmarkAddConst2(t *testing.B) { benchAddConst(AddConst, 2, t) }
+func BenchmarkAddConst3(t *testing.B) { benchAddConst(AddConst, 3, t) }
+func BenchmarkAddConst4(t *testing.B) { benchAddConst(AddConst, 4, t) }
+func BenchmarkAddConst5(t *testing.B) { benchAddConst(AddConst, 5, t) }
+func BenchmarkAddConst10(t *testing.B) { benchAddConst(AddConst, 10, t) }
+func BenchmarkAddConst100(t *testing.B) { benchAddConst(AddConst, 100, t) }
+func BenchmarkAddConst1000(t *testing.B) { benchAddConst(AddConst, 1000, t) }
+func BenchmarkAddConst10000(t *testing.B) { benchAddConst(AddConst, 10000, t) }
+func BenchmarkAddConst100000(t *testing.B) { benchAddConst(AddConst, 100000, t) }
+func BenchmarkAddConst500000(t *testing.B) { benchAddConst(AddConst, 500000, t) }
+
+func BenchmarkLAddConst1(t *testing.B) { benchAddConst(naiveAddConst, 1, t) }
+func BenchmarkLAddConst2(t *testing.B) { benchAddConst(naiveAddConst, 2, t) }
+func BenchmarkLAddConst3(t *testing.B) { benchAddConst(naiveAddConst, 3, t) }
+func BenchmarkLAddConst4(t *testing.B) { benchAddConst(naiveAddConst, 4, t) }
+func BenchmarkLAddConst5(t *testing.B) { benchAddConst(naiveAddConst, 5, t) }
+func BenchmarkLAddConst10(t *testing.B) { benchAddConst(naiveAddConst, 10, t) }
+func BenchmarkLAddConst100(t *testing.B) { benchAddConst(naiveAddConst, 100, t) }
+func BenchmarkLAddConst1000(t *testing.B) { benchAddConst(naiveAddConst, 1000, t) }
+func BenchmarkLAddConst10000(t *testing.B) { benchAddConst(naiveAddConst, 10000, t) }
+func BenchmarkLAddConst100000(t *testing.B) { benchAddConst(naiveAddConst, 100000, t) }
+func BenchmarkLAddConst500000(t *testing.B) { benchAddConst(naiveAddConst, 500000, t) }
+
+func benchCumSum(f func(a, b []float64) []float64, sz int, t *testing.B) {
+ a, b := x[:sz], y[:sz]
+ for i := 0; i < t.N; i++ {
+ f(a, b)
+ }
+}
+
+var naiveCumSum = func(dst, s []float64) []float64 {
+ if len(s) == 0 {
+ return dst
+ }
+ dst[0] = s[0]
+ for i, v := range s[1:] {
+ dst[i+1] = dst[i] + v
+ }
+ return dst
+}
+
+func BenchmarkCumSum1(t *testing.B) { benchCumSum(CumSum, 1, t) }
+func BenchmarkCumSum2(t *testing.B) { benchCumSum(CumSum, 2, t) }
+func BenchmarkCumSum3(t *testing.B) { benchCumSum(CumSum, 3, t) }
+func BenchmarkCumSum4(t *testing.B) { benchCumSum(CumSum, 4, t) }
+func BenchmarkCumSum5(t *testing.B) { benchCumSum(CumSum, 5, t) }
+func BenchmarkCumSum10(t *testing.B) { benchCumSum(CumSum, 10, t) }
+func BenchmarkCumSum100(t *testing.B) { benchCumSum(CumSum, 100, t) }
+func BenchmarkCumSum1000(t *testing.B) { benchCumSum(CumSum, 1000, t) }
+func BenchmarkCumSum10000(t *testing.B) { benchCumSum(CumSum, 10000, t) }
+func BenchmarkCumSum100000(t *testing.B) { benchCumSum(CumSum, 100000, t) }
+func BenchmarkCumSum500000(t *testing.B) { benchCumSum(CumSum, 500000, t) }
+
+func BenchmarkLCumSum1(t *testing.B) { benchCumSum(naiveCumSum, 1, t) }
+func BenchmarkLCumSum2(t *testing.B) { benchCumSum(naiveCumSum, 2, t) }
+func BenchmarkLCumSum3(t *testing.B) { benchCumSum(naiveCumSum, 3, t) }
+func BenchmarkLCumSum4(t *testing.B) { benchCumSum(naiveCumSum, 4, t) }
+func BenchmarkLCumSum5(t *testing.B) { benchCumSum(naiveCumSum, 5, t) }
+func BenchmarkLCumSum10(t *testing.B) { benchCumSum(naiveCumSum, 10, t) }
+func BenchmarkLCumSum100(t *testing.B) { benchCumSum(naiveCumSum, 100, t) }
+func BenchmarkLCumSum1000(t *testing.B) { benchCumSum(naiveCumSum, 1000, t) }
+func BenchmarkLCumSum10000(t *testing.B) { benchCumSum(naiveCumSum, 10000, t) }
+func BenchmarkLCumSum100000(t *testing.B) { benchCumSum(naiveCumSum, 100000, t) }
+func BenchmarkLCumSum500000(t *testing.B) { benchCumSum(naiveCumSum, 500000, t) }
+
+func benchCumProd(f func(a, b []float64) []float64, sz int, t *testing.B) {
+ a, b := x[:sz], y[:sz]
+ for i := 0; i < t.N; i++ {
+ f(a, b)
+ }
+}
+
+var naiveCumProd = func(dst, s []float64) []float64 {
+ if len(s) == 0 {
+ return dst
+ }
+ dst[0] = s[0]
+ for i, v := range s[1:] {
+ dst[i+1] = dst[i] + v
+ }
+ return dst
+}
+
+func BenchmarkCumProd1(t *testing.B) { benchCumProd(CumProd, 1, t) }
+func BenchmarkCumProd2(t *testing.B) { benchCumProd(CumProd, 2, t) }
+func BenchmarkCumProd3(t *testing.B) { benchCumProd(CumProd, 3, t) }
+func BenchmarkCumProd4(t *testing.B) { benchCumProd(CumProd, 4, t) }
+func BenchmarkCumProd5(t *testing.B) { benchCumProd(CumProd, 5, t) }
+func BenchmarkCumProd10(t *testing.B) { benchCumProd(CumProd, 10, t) }
+func BenchmarkCumProd100(t *testing.B) { benchCumProd(CumProd, 100, t) }
+func BenchmarkCumProd1000(t *testing.B) { benchCumProd(CumProd, 1000, t) }
+func BenchmarkCumProd10000(t *testing.B) { benchCumProd(CumProd, 10000, t) }
+func BenchmarkCumProd100000(t *testing.B) { benchCumProd(CumProd, 100000, t) }
+func BenchmarkCumProd500000(t *testing.B) { benchCumProd(CumProd, 500000, t) }
+
+func BenchmarkLCumProd1(t *testing.B) { benchCumProd(naiveCumProd, 1, t) }
+func BenchmarkLCumProd2(t *testing.B) { benchCumProd(naiveCumProd, 2, t) }
+func BenchmarkLCumProd3(t *testing.B) { benchCumProd(naiveCumProd, 3, t) }
+func BenchmarkLCumProd4(t *testing.B) { benchCumProd(naiveCumProd, 4, t) }
+func BenchmarkLCumProd5(t *testing.B) { benchCumProd(naiveCumProd, 5, t) }
+func BenchmarkLCumProd10(t *testing.B) { benchCumProd(naiveCumProd, 10, t) }
+func BenchmarkLCumProd100(t *testing.B) { benchCumProd(naiveCumProd, 100, t) }
+func BenchmarkLCumProd1000(t *testing.B) { benchCumProd(naiveCumProd, 1000, t) }
+func BenchmarkLCumProd10000(t *testing.B) { benchCumProd(naiveCumProd, 10000, t) }
+func BenchmarkLCumProd100000(t *testing.B) { benchCumProd(naiveCumProd, 100000, t) }
+func BenchmarkLCumProd500000(t *testing.B) { benchCumProd(naiveCumProd, 500000, t) }
+
+func benchDiv(f func(a, b []float64), sz int, t *testing.B) {
+ a, b := x[:sz], y[:sz]
+ for i := 0; i < t.N; i++ {
+ f(a, b)
+ }
+}
+
+var naiveDiv = func(a, b []float64) {
+ for i, v := range b {
+ a[i] /= v
+ }
+}
+
+func BenchmarkDiv1(t *testing.B) { benchDiv(Div, 1, t) }
+func BenchmarkDiv2(t *testing.B) { benchDiv(Div, 2, t) }
+func BenchmarkDiv3(t *testing.B) { benchDiv(Div, 3, t) }
+func BenchmarkDiv4(t *testing.B) { benchDiv(Div, 4, t) }
+func BenchmarkDiv5(t *testing.B) { benchDiv(Div, 5, t) }
+func BenchmarkDiv10(t *testing.B) { benchDiv(Div, 10, t) }
+func BenchmarkDiv100(t *testing.B) { benchDiv(Div, 100, t) }
+func BenchmarkDiv1000(t *testing.B) { benchDiv(Div, 1000, t) }
+func BenchmarkDiv10000(t *testing.B) { benchDiv(Div, 10000, t) }
+func BenchmarkDiv100000(t *testing.B) { benchDiv(Div, 100000, t) }
+func BenchmarkDiv500000(t *testing.B) { benchDiv(Div, 500000, t) }
+
+func BenchmarkLDiv1(t *testing.B) { benchDiv(naiveDiv, 1, t) }
+func BenchmarkLDiv2(t *testing.B) { benchDiv(naiveDiv, 2, t) }
+func BenchmarkLDiv3(t *testing.B) { benchDiv(naiveDiv, 3, t) }
+func BenchmarkLDiv4(t *testing.B) { benchDiv(naiveDiv, 4, t) }
+func BenchmarkLDiv5(t *testing.B) { benchDiv(naiveDiv, 5, t) }
+func BenchmarkLDiv10(t *testing.B) { benchDiv(naiveDiv, 10, t) }
+func BenchmarkLDiv100(t *testing.B) { benchDiv(naiveDiv, 100, t) }
+func BenchmarkLDiv1000(t *testing.B) { benchDiv(naiveDiv, 1000, t) }
+func BenchmarkLDiv10000(t *testing.B) { benchDiv(naiveDiv, 10000, t) }
+func BenchmarkLDiv100000(t *testing.B) { benchDiv(naiveDiv, 100000, t) }
+func BenchmarkLDiv500000(t *testing.B) { benchDiv(naiveDiv, 500000, t) }
+
+func benchDivTo(f func(dst, a, b []float64) []float64, sz int, t *testing.B) {
+ dst, a, b := z[:sz], x[:sz], y[:sz]
+ for i := 0; i < t.N; i++ {
+ f(dst, a, b)
+ }
+}
+
+var naiveDivTo = func(dst, s, t []float64) []float64 {
+ for i, v := range s {
+ dst[i] = v / t[i]
+ }
+ return dst
+}
+
+func BenchmarkDivTo1(t *testing.B) { benchDivTo(DivTo, 1, t) }
+func BenchmarkDivTo2(t *testing.B) { benchDivTo(DivTo, 2, t) }
+func BenchmarkDivTo3(t *testing.B) { benchDivTo(DivTo, 3, t) }
+func BenchmarkDivTo4(t *testing.B) { benchDivTo(DivTo, 4, t) }
+func BenchmarkDivTo5(t *testing.B) { benchDivTo(DivTo, 5, t) }
+func BenchmarkDivTo10(t *testing.B) { benchDivTo(DivTo, 10, t) }
+func BenchmarkDivTo100(t *testing.B) { benchDivTo(DivTo, 100, t) }
+func BenchmarkDivTo1000(t *testing.B) { benchDivTo(DivTo, 1000, t) }
+func BenchmarkDivTo10000(t *testing.B) { benchDivTo(DivTo, 10000, t) }
+func BenchmarkDivTo100000(t *testing.B) { benchDivTo(DivTo, 100000, t) }
+func BenchmarkDivTo500000(t *testing.B) { benchDivTo(DivTo, 500000, t) }
+
+func BenchmarkLDivTo1(t *testing.B) { benchDivTo(naiveDivTo, 1, t) }
+func BenchmarkLDivTo2(t *testing.B) { benchDivTo(naiveDivTo, 2, t) }
+func BenchmarkLDivTo3(t *testing.B) { benchDivTo(naiveDivTo, 3, t) }
+func BenchmarkLDivTo4(t *testing.B) { benchDivTo(naiveDivTo, 4, t) }
+func BenchmarkLDivTo5(t *testing.B) { benchDivTo(naiveDivTo, 5, t) }
+func BenchmarkLDivTo10(t *testing.B) { benchDivTo(naiveDivTo, 10, t) }
+func BenchmarkLDivTo100(t *testing.B) { benchDivTo(naiveDivTo, 100, t) }
+func BenchmarkLDivTo1000(t *testing.B) { benchDivTo(naiveDivTo, 1000, t) }
+func BenchmarkLDivTo10000(t *testing.B) { benchDivTo(naiveDivTo, 10000, t) }
+func BenchmarkLDivTo100000(t *testing.B) { benchDivTo(naiveDivTo, 100000, t) }
+func BenchmarkLDivTo500000(t *testing.B) { benchDivTo(naiveDivTo, 500000, t) }
+
+func benchL1Dist(f func(a, b []float64) float64, sz int, t *testing.B) {
+ a, b := x[:sz], y[:sz]
+ for i := 0; i < t.N; i++ {
+ f(a, b)
+ }
+}
+
+var naiveL1Dist = func(s, t []float64) float64 {
+ var norm float64
+ for i, v := range s {
+ norm += math.Abs(t[i] - v)
+ }
+ return norm
+}
+
+func BenchmarkL1Dist1(t *testing.B) { benchL1Dist(L1Dist, 1, t) }
+func BenchmarkL1Dist2(t *testing.B) { benchL1Dist(L1Dist, 2, t) }
+func BenchmarkL1Dist3(t *testing.B) { benchL1Dist(L1Dist, 3, t) }
+func BenchmarkL1Dist4(t *testing.B) { benchL1Dist(L1Dist, 4, t) }
+func BenchmarkL1Dist5(t *testing.B) { benchL1Dist(L1Dist, 5, t) }
+func BenchmarkL1Dist10(t *testing.B) { benchL1Dist(L1Dist, 10, t) }
+func BenchmarkL1Dist100(t *testing.B) { benchL1Dist(L1Dist, 100, t) }
+func BenchmarkL1Dist1000(t *testing.B) { benchL1Dist(L1Dist, 1000, t) }
+func BenchmarkL1Dist10000(t *testing.B) { benchL1Dist(L1Dist, 10000, t) }
+func BenchmarkL1Dist100000(t *testing.B) { benchL1Dist(L1Dist, 100000, t) }
+func BenchmarkL1Dist500000(t *testing.B) { benchL1Dist(L1Dist, 500000, t) }
+
+func BenchmarkLL1Dist1(t *testing.B) { benchL1Dist(naiveL1Dist, 1, t) }
+func BenchmarkLL1Dist2(t *testing.B) { benchL1Dist(naiveL1Dist, 2, t) }
+func BenchmarkLL1Dist3(t *testing.B) { benchL1Dist(naiveL1Dist, 3, t) }
+func BenchmarkLL1Dist4(t *testing.B) { benchL1Dist(naiveL1Dist, 4, t) }
+func BenchmarkLL1Dist5(t *testing.B) { benchL1Dist(naiveL1Dist, 5, t) }
+func BenchmarkLL1Dist10(t *testing.B) { benchL1Dist(naiveL1Dist, 10, t) }
+func BenchmarkLL1Dist100(t *testing.B) { benchL1Dist(naiveL1Dist, 100, t) }
+func BenchmarkLL1Dist1000(t *testing.B) { benchL1Dist(naiveL1Dist, 1000, t) }
+func BenchmarkLL1Dist10000(t *testing.B) { benchL1Dist(naiveL1Dist, 10000, t) }
+func BenchmarkLL1Dist100000(t *testing.B) { benchL1Dist(naiveL1Dist, 100000, t) }
+func BenchmarkLL1Dist500000(t *testing.B) { benchL1Dist(naiveL1Dist, 500000, t) }
+
+func benchLinfDist(f func(a, b []float64) float64, sz int, t *testing.B) {
+ a, b := x[:sz], y[:sz]
+ for i := 0; i < t.N; i++ {
+ f(a, b)
+ }
+}
+
+var naiveLinfDist = func(s, t []float64) float64 {
+ var norm float64
+ if len(s) == 0 {
+ return 0
+ }
+ norm = math.Abs(t[0] - s[0])
+ for i, v := range s[1:] {
+ absDiff := math.Abs(t[i+1] - v)
+ if absDiff > norm || math.IsNaN(norm) {
+ norm = absDiff
+ }
+ }
+ return norm
+}
+
+func BenchmarkLinfDist1(t *testing.B) { benchLinfDist(LinfDist, 1, t) }
+func BenchmarkLinfDist2(t *testing.B) { benchLinfDist(LinfDist, 2, t) }
+func BenchmarkLinfDist3(t *testing.B) { benchLinfDist(LinfDist, 3, t) }
+func BenchmarkLinfDist4(t *testing.B) { benchLinfDist(LinfDist, 4, t) }
+func BenchmarkLinfDist5(t *testing.B) { benchLinfDist(LinfDist, 5, t) }
+func BenchmarkLinfDist10(t *testing.B) { benchLinfDist(LinfDist, 10, t) }
+func BenchmarkLinfDist100(t *testing.B) { benchLinfDist(LinfDist, 100, t) }
+func BenchmarkLinfDist1000(t *testing.B) { benchLinfDist(LinfDist, 1000, t) }
+func BenchmarkLinfDist10000(t *testing.B) { benchLinfDist(LinfDist, 10000, t) }
+func BenchmarkLinfDist100000(t *testing.B) { benchLinfDist(LinfDist, 100000, t) }
+func BenchmarkLinfDist500000(t *testing.B) { benchLinfDist(LinfDist, 500000, t) }
+
+func BenchmarkLLinfDist1(t *testing.B) { benchLinfDist(naiveLinfDist, 1, t) }
+func BenchmarkLLinfDist2(t *testing.B) { benchLinfDist(naiveLinfDist, 2, t) }
+func BenchmarkLLinfDist3(t *testing.B) { benchLinfDist(naiveLinfDist, 3, t) }
+func BenchmarkLLinfDist4(t *testing.B) { benchLinfDist(naiveLinfDist, 4, t) }
+func BenchmarkLLinfDist5(t *testing.B) { benchLinfDist(naiveLinfDist, 5, t) }
+func BenchmarkLLinfDist10(t *testing.B) { benchLinfDist(naiveLinfDist, 10, t) }
+func BenchmarkLLinfDist100(t *testing.B) { benchLinfDist(naiveLinfDist, 100, t) }
+func BenchmarkLLinfDist1000(t *testing.B) { benchLinfDist(naiveLinfDist, 1000, t) }
+func BenchmarkLLinfDist10000(t *testing.B) { benchLinfDist(naiveLinfDist, 10000, t) }
+func BenchmarkLLinfDist100000(t *testing.B) { benchLinfDist(naiveLinfDist, 100000, t) }
+func BenchmarkLLinfDist500000(t *testing.B) { benchLinfDist(naiveLinfDist, 500000, t) }
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