when you're doing something so simple, the overhead of SMP isn't worth it

main.go

@@ -7,14 +7,13 @@ import (
 	"math"
 	"math/rand"
 	"os"
-	"runtime"
 	"time"
 )
 
 const (
 	randomMin  = 0
 	randomMax  = 9999999999999999
-	numSamples = 10000000
+	numSamples = 100000000
 )
 
 func main() {
@@ -34,13 +33,8 @@ func main() {
 	log.Printf("generating numbers...")
 
 	rand.Seed(time.Now().UnixNano())
-	generatedNumbers := make(chan int, 1024)
-	for i := 0; i < runtime.NumCPU(); i++ {
-		go generatorWorker(generatedNumbers)
-	}
-
 	for currentSample = 0; currentSample < numSamples; currentSample++ {
-		results[firstDigit(<-generatedNumbers)-1]++
+		results[firstDigit(rand.Intn(randomMax-randomMin+1)+randomMin)-1]++ // We must use Intn instead of Int because from Base10's perspective, integers cut off at a really weird spot
 	}
 
 	statusTicker.Stop()
@@ -55,12 +49,6 @@ func main() {
 	bufio.NewReader(os.Stdin).ReadBytes('\n')
 }
 
-func generatorWorker(returnChannel chan int) {
-	for {
-		returnChannel <- rand.Intn(randomMax-randomMin+1) + randomMin // We must use Intn instead of Int because from Base10's perspective, integers cut off at a really weird spot
-	}
-}
-
 // firstDigit returns the first/leftmost digit of the base10 representation of an integer
 func firstDigit(x int) int {
 	return int(math.Abs(float64(x)) / math.Pow(10, float64(numDigits(x)-1)))