Experiences with go profiling mechanism

.gitignore

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+*.prof
+*.gif
+*.pdf
+*.balhau

README.md

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+# Profiling
+
+```
+# Compile it
+go build
+
+# Test it
+go test
+
+# Profile CPU
+go test -cpuprofile cpu.prof -bench .
+
+# Visualize profiled data
+go tool pprof cpu.prof
+
+```
+
+

go.mod

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+module goprofile.balhau
+
+go 1.18

main.go

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+package main
+
+func Fib2(n int) uint64 {
+	if n == 0 {
+		return 0
+	} else if n == 1 {
+		return 1
+	} else {
+		return Fib2(n-1) + Fib2(n-2)
+	}
+}
+
+func Fib(n int) *uint64 {
+	//var f [100010]uint64
+	//f := make([]uint64, 10000)
+	var f [10000]uint64
+	f[0] = 0
+	f[1] = 1
+
+	for i := 2; i <= n; i++ {
+		f[i] = f[i-1] + f[i-2]
+	}
+	return &f[n]
+}
+
+func main() {
+
+}

main_test.go

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+package main
+
+import "testing"
+
+func TestGetVal(t *testing.T) {
+	for i := 0; i < 1000; i++ {
+		if Fib2(30) != 832040 {
+			t.Error("Incorrect!")
+		}
+	}
+}
+
+func TestGetValOpt(t *testing.T) {
+	for i := 0; i < 1000; i++ {
+		if Fib(30) != 832040 {
+			t.Error("Incorrect!")
+		}
+	}
+}