vendor update for CSI 0.3.0

vendor/google.golang.org/grpc/benchmark/server/main.go

@@ -20,32 +20,71 @@ package main
 
 import (
 	"flag"
-	"math"
+	"fmt"
 	"net"
-	"net/http"
 	_ "net/http/pprof"
+	"os"
+	"os/signal"
+	"runtime"
+	"runtime/pprof"
+	"syscall"
 	"time"
 
+	"golang.org/x/sys/unix"
 	"google.golang.org/grpc/benchmark"
 	"google.golang.org/grpc/grpclog"
 )
 
-var duration = flag.Int("duration", math.MaxInt32, "The duration in seconds to run the benchmark server")
+var (
+	port     = flag.String("port", "50051", "Localhost port to listen on.")
+	testName = flag.String("test_name", "", "Name of the test used for creating profiles.")
+)
 
 func main() {
 	flag.Parse()
-	go func() {
-		lis, err := net.Listen("tcp", ":0")
-		if err != nil {
-			grpclog.Fatalf("Failed to listen: %v", err)
-		}
-		grpclog.Println("Server profiling address: ", lis.Addr().String())
-		if err := http.Serve(lis, nil); err != nil {
-			grpclog.Fatalf("Failed to serve: %v", err)
-		}
-	}()
-	addr, stopper := benchmark.StartServer(benchmark.ServerInfo{Addr: ":0", Type: "protobuf"}) // listen on all interfaces
-	grpclog.Println("Server Address: ", addr)
-	<-time.After(time.Duration(*duration) * time.Second)
-	stopper()
+	if *testName == "" {
+		grpclog.Fatalf("test name not set")
+	}
+	lis, err := net.Listen("tcp", ":"+*port)
+	if err != nil {
+		grpclog.Fatalf("Failed to listen: %v", err)
+	}
+	defer lis.Close()
+
+	cf, err := os.Create("/tmp/" + *testName + ".cpu")
+	if err != nil {
+		grpclog.Fatalf("Failed to create file: %v", err)
+	}
+	defer cf.Close()
+	pprof.StartCPUProfile(cf)
+	cpuBeg := getCPUTime()
+	// Launch server in a separate goroutine.
+	stop := benchmark.StartServer(benchmark.ServerInfo{Type: "protobuf", Listener: lis})
+	// Wait on OS terminate signal.
+	ch := make(chan os.Signal, 1)
+	signal.Notify(ch, syscall.SIGTERM)
+	<-ch
+	cpu := time.Duration(getCPUTime() - cpuBeg)
+	stop()
+	pprof.StopCPUProfile()
+	mf, err := os.Create("/tmp/" + *testName + ".mem")
+	if err != nil {
+		grpclog.Fatalf("Failed to create file: %v", err)
+	}
+	defer mf.Close()
+	runtime.GC() // materialize all statistics
+	if err := pprof.WriteHeapProfile(mf); err != nil {
+		grpclog.Fatalf("Failed to write memory profile: %v", err)
+	}
+	fmt.Println("Server CPU utilization:", cpu)
+	fmt.Println("Server CPU profile:", cf.Name())
+	fmt.Println("Server Mem Profile:", mf.Name())
+}
+
+func getCPUTime() int64 {
+	var ts unix.Timespec
+	if err := unix.ClockGettime(unix.CLOCK_PROCESS_CPUTIME_ID, &ts); err != nil {
+		grpclog.Fatal(err)
+	}
+	return ts.Nano()
 }