xx_hash_test.go

func Hash256(data []byte) []byte {
	h := blake2b.Sum256(data)

	return h[:]
}

func CalcHashWithXXHash64(data []byte) []byte {
	xh := xxhash.New64()

	_, _ = xh.Write(data)

	b := xh.Sum(nil)

	return b
}

func CalcHashWithXXHash32(data []byte) []byte {
	xh := xxhash.New32()

	_, _ = xh.Write(data)

	b := xh.Sum(nil)

	return b
}

func BenchmarkCompareWithXXHash(b *testing.B) {
	data := []byte("pactus")

	b.Run("XXHash 64 Algorithm", func(b *testing.B) {
		b.ReportAllocs()
		for i := 0; i < b.N; i++ {
			_ = hash.CalcHashWithXXHash64(data)
		}
	})

	b.Run("XXHash 32 Algorithm", func(b *testing.B) {
		b.ReportAllocs()
		for i := 0; i < b.N; i++ {
			_ = hash.CalcHashWithXXHash32(data)
		}
	})

	b.Run("Blake2b Hash Algorithm", func(b *testing.B) {
		b.ReportAllocs()
		for i := 0; i < b.N; i++ {
			_ = hash.Hash256(data)
		}
	})
}

/*
Results:

cpu: AMD Ryzen 7 5700U with Radeon Graphics         
BenchmarkCompareWithXXHash
BenchmarkCompareWithXXHash/XXHash_64_Algorithm
BenchmarkCompareWithXXHash/XXHash_64_Algorithm-16         	28792616	        40.06 ns/op	       8 B/op	       1 allocs/op
BenchmarkCompareWithXXHash/XXHash_32_Algorithm
BenchmarkCompareWithXXHash/XXHash_32_Algorithm-16         	29995200	        37.13 ns/op	       8 B/op	       1 allocs/op
BenchmarkCompareWithXXHash/Blake2b_Hash_Algorithm
BenchmarkCompareWithXXHash/Blake2b_Hash_Algorithm-16      	 8504932	       139.6 ns/op	       0 B/op	       0 allocs/op
PASS
*/