printing memory stats from inside go

main.go

@@ -8,6 +8,8 @@ import (
 	"io"
 	"log"
 	"os"
+	"runtime"
+	"time"
 
 	mcli "github.com/mitchellh/cli"
 
@@ -17,7 +19,21 @@ import (
 	_ "github.com/hashicorp/consul/service_os"
 )
 
+func printMemStats() {
+	var memStats runtime.MemStats
+	runtime.ReadMemStats(&memStats)
+	fmt.Printf("Alloc = %v MiB", memStats.Alloc/1024/1024)
+	fmt.Printf("\tTotalAlloc = %v MiB", memStats.TotalAlloc/1024/1024)
+	fmt.Printf("\tSys = %v MiB", memStats.Sys/1024/1024)
+	fmt.Printf("\tNumGC = %v\n", memStats.NumGC)
+	time.Sleep(2 * time.Second)
+	printMemStats()
+}
+
 func main() {
+	go func() {
+		printMemStats()
+	}()
 	os.Exit(realMain())
 }