Packer vmware-iso profiling patch

profiling.patch

Index: helper/communicator/step_connect.go
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- helper/communicator/step_connect.go	(revision 2eb80a81e39d760c77b165863866bbc72a3c5861)
+++ helper/communicator/step_connect.go	(date 1563282177973)
@@ -4,6 +4,9 @@
 	"context"
 	"fmt"
 	"log"
+	"os"
+	"runtime"
+	"runtime/pprof"
 	"time"
 
 	"github.com/hashicorp/packer/communicator/none"
@@ -60,6 +63,31 @@
 func (s *StepConnect) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
 	ui := state.Get("ui").(packer.Ui)
 
+	cf, err := os.Create("/tmp/step-connect.cpu.gz")
+	if err != nil {
+		state.Put("error", fmt.Errorf("failed to create file: %v", err))
+		return multistep.ActionHalt
+	}
+	//noinspection GoUnhandledErrorResult
+	defer cf.Close()
+	err = pprof.StartCPUProfile(cf)
+	if err != nil {
+		state.Put("error", fmt.Errorf("failed to start profiling: %v", err))
+		return multistep.ActionHalt
+	}
+	defer pprof.StopCPUProfile()
+	defer func() {
+		mf, err := os.Create("/tmp/step-connect.mem.gz")
+		if err == nil {
+			//noinspection GoUnhandledErrorResult
+			defer mf.Close()
+			runtime.GC() // materialize all statistics
+			if err := pprof.WriteHeapProfile(mf); err != nil {
+				state.Put("error", fmt.Errorf("failed to write memory profile: %v", err))
+			}
+		}
+	}()
+
 	typeMap := map[string]multistep.Step{
 		"none": nil,
 		"ssh": &StepConnectSSH{
Index: command/plugin.go
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- command/plugin.go	(revision 2eb80a81e39d760c77b165863866bbc72a3c5861)
+++ command/plugin.go	(date 1563282177972)
@@ -89,6 +89,9 @@
 	sleepprovisioner "github.com/hashicorp/packer/provisioner/sleep"
 	windowsrestartprovisioner "github.com/hashicorp/packer/provisioner/windows-restart"
 	windowsshellprovisioner "github.com/hashicorp/packer/provisioner/windows-shell"
+
+	"net/http"
+	_ "net/http/pprof"
 )
 
 type PluginCommand struct {
@@ -231,6 +234,10 @@
 		server.RegisterPostProcessor(postProcessor)
 	}
 
+	if pluginType == "builder" && pluginName == "vmware-iso" {
+		go http.ListenAndServe("127.0.0.1:8990", nil)
+	}
+
 	server.Serve()
 
 	return 0