init: v1.0.0

internal/gmp/bench_math_big_test.go

@@ -0,0 +1,85 @@
+//go:build gmp
+// +build gmp
+
+package gmp_test
+
+import (
+	"math/big"
+	"testing"
+)
+
+// Make a n digit number
+func nDigitNumberMathBig(digits int64) *big.Int {
+	x := big.NewInt(10)
+	n := big.NewInt(digits)
+	one := big.NewInt(1)
+	x.Exp(x, n, nil)
+	x.Sub(x, one)
+	return x
+}
+
+func benchmarkMathBigAddN(b *testing.B, digits int64) {
+	x := nDigitNumberMathBig(digits)
+	y := nDigitNumberMathBig(digits)
+	z := big.NewInt(0)
+	b.ResetTimer()
+	b.StartTimer()
+	for i := b.N - 1; i >= 0; i-- {
+		z.Add(x, y)
+	}
+}
+
+func BenchmarkMathBigAdd1(b *testing.B) {
+	benchmarkMathBigAddN(b, 10)
+}
+func BenchmarkMathBigAdd10(b *testing.B) {
+	benchmarkMathBigAddN(b, 10)
+}
+func BenchmarkMathBigAdd100(b *testing.B) {
+	benchmarkMathBigAddN(b, 100)
+}
+func BenchmarkMathBigAdd1000(b *testing.B) {
+	benchmarkMathBigAddN(b, 1000)
+}
+func BenchmarkMathBigAdd10000(b *testing.B) {
+	benchmarkMathBigAddN(b, 10000)
+}
+func BenchmarkMathBigAdd100000(b *testing.B) {
+	benchmarkMathBigAddN(b, 100000)
+}
+func BenchmarkMathBigAdd1000000(b *testing.B) {
+	benchmarkMathBigAddN(b, 1000000)
+}
+
+func benchmarkMathBigMulN(b *testing.B, digits int64) {
+	x := nDigitNumberMathBig(digits)
+	y := nDigitNumberMathBig(digits)
+	z := big.NewInt(0)
+	b.ResetTimer()
+	b.StartTimer()
+	for i := b.N - 1; i >= 0; i-- {
+		z.Mul(x, y)
+	}
+}
+
+func BenchmarkMathBigMul1(b *testing.B) {
+	benchmarkMathBigMulN(b, 10)
+}
+func BenchmarkMathBigMul10(b *testing.B) {
+	benchmarkMathBigMulN(b, 10)
+}
+func BenchmarkMathBigMul100(b *testing.B) {
+	benchmarkMathBigMulN(b, 100)
+}
+func BenchmarkMathBigMul1000(b *testing.B) {
+	benchmarkMathBigMulN(b, 1000)
+}
+func BenchmarkMathBigMul10000(b *testing.B) {
+	benchmarkMathBigMulN(b, 10000)
+}
+func BenchmarkMathBigMul100000(b *testing.B) {
+	benchmarkMathBigMulN(b, 100000)
+}
+func BenchmarkMathBigMul1000000(b *testing.B) {
+	benchmarkMathBigMulN(b, 1000000)
+}