diff --git a/android/Android.bp b/android/Android.bp
index d3540b2..c072ac2 100644
--- a/android/Android.bp
+++ b/android/Android.bp
@@ -8,6 +8,7 @@
     deps: [
         "blueprint",
         "blueprint-bootstrap",
+        "blueprint-metrics",
         "sbox_proto",
         "soong",
         "soong-android-soongconfig",
diff --git a/android/metrics.go b/android/metrics.go
index 2cd5efa..9038bde 100644
--- a/android/metrics.go
+++ b/android/metrics.go
@@ -18,6 +18,7 @@
 	"io/ioutil"
 	"runtime"
 
+	"github.com/google/blueprint/metrics"
 	"google.golang.org/protobuf/proto"
 
 	soong_metrics_proto "android/soong/ui/metrics/metrics_proto"
@@ -55,7 +56,7 @@
 	})
 }
 
-func collectMetrics(config Config) *soong_metrics_proto.SoongBuildMetrics {
+func collectMetrics(config Config, eventHandler metrics.EventHandler) *soong_metrics_proto.SoongBuildMetrics {
 	metrics := &soong_metrics_proto.SoongBuildMetrics{}
 
 	soongMetrics := ReadSoongMetrics(config)
@@ -68,11 +69,21 @@
 	metrics.TotalAllocCount = proto.Uint64(memStats.Mallocs)
 	metrics.TotalAllocSize = proto.Uint64(memStats.TotalAlloc)
 
+	for _, event := range eventHandler.CompletedEvents() {
+		perfInfo := soong_metrics_proto.PerfInfo{
+			Description: proto.String(event.Id),
+			Name:        proto.String("soong_build"),
+			StartTime:   proto.Uint64(uint64(event.Start.UnixNano())),
+			RealTime:    proto.Uint64(event.RuntimeNanoseconds()),
+		}
+		metrics.Events = append(metrics.Events, &perfInfo)
+	}
+
 	return metrics
 }
 
-func WriteMetrics(config Config, metricsFile string) error {
-	metrics := collectMetrics(config)
+func WriteMetrics(config Config, eventHandler metrics.EventHandler, metricsFile string) error {
+	metrics := collectMetrics(config, eventHandler)
 
 	buf, err := proto.Marshal(metrics)
 	if err != nil {
diff --git a/bp2build/metrics.go b/bp2build/metrics.go
index 8a0b1c9..04fac44 100644
--- a/bp2build/metrics.go
+++ b/bp2build/metrics.go
@@ -43,6 +43,8 @@
 
 	// Counts of total modules by module type.
 	totalModuleTypeCount map[string]uint64
+
+	Events []*bp2build_metrics_proto.Event
 }
 
 // Serialize returns the protoized version of CodegenMetrics: bp2build_metrics_proto.Bp2BuildMetrics
@@ -55,6 +57,7 @@
 		ConvertedModules:         metrics.convertedModules,
 		ConvertedModuleTypeCount: metrics.convertedModuleTypeCount,
 		TotalModuleTypeCount:     metrics.totalModuleTypeCount,
+		Events:                   metrics.Events,
 	}
 }
 
diff --git a/cmd/soong_build/main.go b/cmd/soong_build/main.go
index b3a6ee0..4b3161b 100644
--- a/cmd/soong_build/main.go
+++ b/cmd/soong_build/main.go
@@ -26,10 +26,11 @@
 	"android/soong/android"
 	"android/soong/bp2build"
 	"android/soong/shared"
+	"android/soong/ui/metrics/bp2build_metrics_proto"
 
 	"github.com/google/blueprint/bootstrap"
 	"github.com/google/blueprint/deptools"
-	"github.com/google/blueprint/pathtools"
+	"github.com/google/blueprint/metrics"
 	androidProtobuf "google.golang.org/protobuf/android"
 )
 
@@ -134,8 +135,14 @@
 // TODO(cparsons): Don't output any ninja file, as the second pass will overwrite
 // the incorrect results from the first pass, and file I/O is expensive.
 func runMixedModeBuild(configuration android.Config, firstCtx *android.Context, extraNinjaDeps []string) {
-	bootstrap.RunBlueprint(cmdlineArgs, bootstrap.StopBeforeWriteNinja, firstCtx.Context, configuration)
+	firstCtx.EventHandler.Begin("mixed_build")
+	defer firstCtx.EventHandler.End("mixed_build")
 
+	firstCtx.EventHandler.Begin("prepare")
+	bootstrap.RunBlueprint(cmdlineArgs, bootstrap.StopBeforeWriteNinja, firstCtx.Context, configuration)
+	firstCtx.EventHandler.End("prepare")
+
+	firstCtx.EventHandler.Begin("bazel")
 	// Invoke bazel commands and save results for second pass.
 	if err := configuration.BazelContext.InvokeBazel(); err != nil {
 		fmt.Fprintf(os.Stderr, "%s", err)
@@ -147,18 +154,25 @@
 		fmt.Fprintf(os.Stderr, "%s", err)
 		os.Exit(1)
 	}
+	firstCtx.EventHandler.End("bazel")
+
 	secondCtx := newContext(secondConfig)
+	secondCtx.EventHandler = firstCtx.EventHandler
+	secondCtx.EventHandler.Begin("analyze")
 	ninjaDeps := bootstrap.RunBlueprint(cmdlineArgs, bootstrap.DoEverything, secondCtx.Context, secondConfig)
 	ninjaDeps = append(ninjaDeps, extraNinjaDeps...)
+	secondCtx.EventHandler.End("analyze")
 
-	globListFiles := writeBuildGlobsNinjaFile(secondCtx.SrcDir(), configuration.SoongOutDir(), secondCtx.Globs, configuration)
+	globListFiles := writeBuildGlobsNinjaFile(secondCtx, configuration.SoongOutDir(), configuration)
 	ninjaDeps = append(ninjaDeps, globListFiles...)
 
-	writeDepFile(cmdlineArgs.OutFile, ninjaDeps)
+	writeDepFile(cmdlineArgs.OutFile, *secondCtx.EventHandler, ninjaDeps)
 }
 
 // Run the code-generation phase to convert BazelTargetModules to BUILD files.
 func runQueryView(queryviewDir, queryviewMarker string, configuration android.Config, ctx *android.Context) {
+	ctx.EventHandler.Begin("queryview")
+	defer ctx.EventHandler.End("queryview")
 	codegenContext := bp2build.NewCodegenContext(configuration, *ctx, bp2build.QueryView)
 	absoluteQueryViewDir := shared.JoinPath(topDir, queryviewDir)
 	if err := createBazelQueryView(codegenContext, absoluteQueryViewDir); err != nil {
@@ -169,9 +183,14 @@
 	touch(shared.JoinPath(topDir, queryviewMarker))
 }
 
-func writeMetrics(configuration android.Config) {
-	metricsFile := filepath.Join(configuration.SoongOutDir(), "soong_build_metrics.pb")
-	err := android.WriteMetrics(configuration, metricsFile)
+func writeMetrics(configuration android.Config, eventHandler metrics.EventHandler) {
+	metricsDir := configuration.Getenv("LOG_DIR")
+	if len(metricsDir) < 1 {
+		fmt.Fprintf(os.Stderr, "\nMissing required env var for generating soong metrics: LOG_DIR\n")
+		os.Exit(1)
+	}
+	metricsFile := filepath.Join(metricsDir, "soong_build_metrics.pb")
+	err := android.WriteMetrics(configuration, eventHandler, metricsFile)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "error writing soong_build metrics %s: %s", metricsFile, err)
 		os.Exit(1)
@@ -191,18 +210,23 @@
 	ctx.Context.PrintJSONGraphAndActions(graphFile, actionsFile)
 }
 
-func writeBuildGlobsNinjaFile(srcDir, buildDir string, globs func() pathtools.MultipleGlobResults, config interface{}) []string {
+func writeBuildGlobsNinjaFile(ctx *android.Context, buildDir string, config interface{}) []string {
+	ctx.EventHandler.Begin("globs_ninja_file")
+	defer ctx.EventHandler.End("globs_ninja_file")
+
 	globDir := bootstrap.GlobDirectory(buildDir, globListDir)
 	bootstrap.WriteBuildGlobsNinjaFile(&bootstrap.GlobSingleton{
-		GlobLister: globs,
+		GlobLister: ctx.Globs,
 		GlobFile:   globFile,
 		GlobDir:    globDir,
-		SrcDir:     srcDir,
+		SrcDir:     ctx.SrcDir(),
 	}, config)
 	return bootstrap.GlobFileListFiles(globDir)
 }
 
-func writeDepFile(outputFile string, ninjaDeps []string) {
+func writeDepFile(outputFile string, eventHandler metrics.EventHandler, ninjaDeps []string) {
+	eventHandler.Begin("ninja_deps")
+	defer eventHandler.End("ninja_deps")
 	depFile := shared.JoinPath(topDir, outputFile+".d")
 	err := deptools.WriteDepFile(depFile, outputFile, ninjaDeps)
 	if err != nil {
@@ -230,36 +254,36 @@
 
 	blueprintArgs := cmdlineArgs
 
-	var stopBefore bootstrap.StopBefore
-	if generateModuleGraphFile {
-		stopBefore = bootstrap.StopBeforeWriteNinja
-	} else if generateQueryView {
-		stopBefore = bootstrap.StopBeforePrepareBuildActions
-	} else if generateDocFile {
-		stopBefore = bootstrap.StopBeforePrepareBuildActions
-	} else {
-		stopBefore = bootstrap.DoEverything
-	}
-
 	ctx := newContext(configuration)
 	if mixedModeBuild {
 		runMixedModeBuild(configuration, ctx, extraNinjaDeps)
 	} else {
+		var stopBefore bootstrap.StopBefore
+		if generateModuleGraphFile {
+			stopBefore = bootstrap.StopBeforeWriteNinja
+		} else if generateQueryView {
+			stopBefore = bootstrap.StopBeforePrepareBuildActions
+		} else if generateDocFile {
+			stopBefore = bootstrap.StopBeforePrepareBuildActions
+		} else {
+			stopBefore = bootstrap.DoEverything
+		}
+
 		ninjaDeps := bootstrap.RunBlueprint(blueprintArgs, stopBefore, ctx.Context, configuration)
 		ninjaDeps = append(ninjaDeps, extraNinjaDeps...)
 
-		globListFiles := writeBuildGlobsNinjaFile(ctx.SrcDir(), configuration.SoongOutDir(), ctx.Globs, configuration)
+		globListFiles := writeBuildGlobsNinjaFile(ctx, configuration.SoongOutDir(), configuration)
 		ninjaDeps = append(ninjaDeps, globListFiles...)
 
 		// Convert the Soong module graph into Bazel BUILD files.
 		if generateQueryView {
 			queryviewMarkerFile := bazelQueryViewDir + ".marker"
 			runQueryView(bazelQueryViewDir, queryviewMarkerFile, configuration, ctx)
-			writeDepFile(queryviewMarkerFile, ninjaDeps)
+			writeDepFile(queryviewMarkerFile, *ctx.EventHandler, ninjaDeps)
 			return queryviewMarkerFile
 		} else if generateModuleGraphFile {
 			writeJsonModuleGraphAndActions(ctx, moduleGraphFile, moduleActionsFile)
-			writeDepFile(moduleGraphFile, ninjaDeps)
+			writeDepFile(moduleGraphFile, *ctx.EventHandler, ninjaDeps)
 			return moduleGraphFile
 		} else if generateDocFile {
 			// TODO: we could make writeDocs() return the list of documentation files
@@ -269,16 +293,16 @@
 				fmt.Fprintf(os.Stderr, "error building Soong documentation: %s\n", err)
 				os.Exit(1)
 			}
-			writeDepFile(docFile, ninjaDeps)
+			writeDepFile(docFile, *ctx.EventHandler, ninjaDeps)
 			return docFile
 		} else {
 			// The actual output (build.ninja) was written in the RunBlueprint() call
 			// above
-			writeDepFile(cmdlineArgs.OutFile, ninjaDeps)
+			writeDepFile(cmdlineArgs.OutFile, *ctx.EventHandler, ninjaDeps)
 		}
 	}
 
-	writeMetrics(configuration)
+	writeMetrics(configuration, *ctx.EventHandler)
 	return cmdlineArgs.OutFile
 }
 
@@ -335,6 +359,7 @@
 	}
 
 	finalOutputFile := doChosenActivity(configuration, extraNinjaDeps)
+
 	writeUsedEnvironmentFile(configuration, finalOutputFile)
 }
 
@@ -466,6 +491,9 @@
 // an alternate pipeline of mutators and singletons specifically for generating
 // Bazel BUILD files instead of Ninja files.
 func runBp2Build(configuration android.Config, extraNinjaDeps []string) {
+	eventHandler := metrics.EventHandler{}
+	eventHandler.Begin("bp2build")
+
 	// Register an alternate set of singletons and mutators for bazel
 	// conversion for Bazel conversion.
 	bp2buildCtx := android.NewContext(configuration)
@@ -500,7 +528,7 @@
 	ninjaDeps := bootstrap.RunBlueprint(blueprintArgs, bootstrap.StopBeforePrepareBuildActions, bp2buildCtx.Context, configuration)
 	ninjaDeps = append(ninjaDeps, extraNinjaDeps...)
 
-	globListFiles := writeBuildGlobsNinjaFile(bp2buildCtx.SrcDir(), configuration.SoongOutDir(), bp2buildCtx.Globs, configuration)
+	globListFiles := writeBuildGlobsNinjaFile(bp2buildCtx, configuration.SoongOutDir(), configuration)
 	ninjaDeps = append(ninjaDeps, globListFiles...)
 
 	// Run the code-generation phase to convert BazelTargetModules to BUILD files
@@ -537,27 +565,38 @@
 	symlinkForestDeps := bp2build.PlantSymlinkForest(
 		topDir, workspaceRoot, generatedRoot, ".", excludes)
 
+	ninjaDeps = append(ninjaDeps, codegenContext.AdditionalNinjaDeps()...)
+	ninjaDeps = append(ninjaDeps, symlinkForestDeps...)
+
+	writeDepFile(bp2buildMarker, eventHandler, ninjaDeps)
+
+	// Create an empty bp2build marker file.
+	touch(shared.JoinPath(topDir, bp2buildMarker))
+
+	eventHandler.End("bp2build")
+
 	// Only report metrics when in bp2build mode. The metrics aren't relevant
 	// for queryview, since that's a total repo-wide conversion and there's a
 	// 1:1 mapping for each module.
 	metrics.Print()
-	writeBp2BuildMetrics(&metrics, configuration)
-
-	ninjaDeps = append(ninjaDeps, codegenContext.AdditionalNinjaDeps()...)
-	ninjaDeps = append(ninjaDeps, symlinkForestDeps...)
-
-	writeDepFile(bp2buildMarker, ninjaDeps)
-
-	// Create an empty bp2build marker file.
-	touch(shared.JoinPath(topDir, bp2buildMarker))
+	writeBp2BuildMetrics(&metrics, configuration, eventHandler)
 }
 
 // Write Bp2Build metrics into $LOG_DIR
-func writeBp2BuildMetrics(metrics *bp2build.CodegenMetrics, configuration android.Config) {
+func writeBp2BuildMetrics(codegenMetrics *bp2build.CodegenMetrics,
+	configuration android.Config, eventHandler metrics.EventHandler) {
+	for _, event := range eventHandler.CompletedEvents() {
+		codegenMetrics.Events = append(codegenMetrics.Events,
+			&bp2build_metrics_proto.Event{
+				Name:      event.Id,
+				StartTime: uint64(event.Start.UnixNano()),
+				RealTime:  event.RuntimeNanoseconds(),
+			})
+	}
 	metricsDir := configuration.Getenv("LOG_DIR")
 	if len(metricsDir) < 1 {
 		fmt.Fprintf(os.Stderr, "\nMissing required env var for generating bp2build metrics: LOG_DIR\n")
 		os.Exit(1)
 	}
-	metrics.Write(metricsDir)
+	codegenMetrics.Write(metricsDir)
 }
diff --git a/ui/build/soong.go b/ui/build/soong.go
index 1b993e1..c7f22f9 100644
--- a/ui/build/soong.go
+++ b/ui/build/soong.go
@@ -537,7 +537,7 @@
 }
 
 func loadSoongBuildMetrics(ctx Context, config Config) *soong_metrics_proto.SoongBuildMetrics {
-	soongBuildMetricsFile := filepath.Join(config.OutDir(), "soong", "soong_build_metrics.pb")
+	soongBuildMetricsFile := filepath.Join(config.LogsDir(), "soong_build_metrics.pb")
 	buf, err := ioutil.ReadFile(soongBuildMetricsFile)
 	if err != nil {
 		ctx.Fatalf("Failed to load %s: %s", soongBuildMetricsFile, err)
diff --git a/ui/metrics/bp2build_metrics_proto/bp2build_metrics.pb.go b/ui/metrics/bp2build_metrics_proto/bp2build_metrics.pb.go
index 95f02ca..93f3471 100644
--- a/ui/metrics/bp2build_metrics_proto/bp2build_metrics.pb.go
+++ b/ui/metrics/bp2build_metrics_proto/bp2build_metrics.pb.go
@@ -53,6 +53,9 @@
 	ConvertedModuleTypeCount map[string]uint64 `protobuf:"bytes,6,rep,name=convertedModuleTypeCount,proto3" json:"convertedModuleTypeCount,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"varint,2,opt,name=value,proto3"`
 	// Counts of total modules by module type.
 	TotalModuleTypeCount map[string]uint64 `protobuf:"bytes,7,rep,name=totalModuleTypeCount,proto3" json:"totalModuleTypeCount,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"varint,2,opt,name=value,proto3"`
+	// List of traced runtime events of bp2build, useful for tracking bp2build
+	// runtime.
+	Events []*Event `protobuf:"bytes,8,rep,name=events,proto3" json:"events,omitempty"`
 }
 
 func (x *Bp2BuildMetrics) Reset() {
@@ -136,13 +139,89 @@
 	return nil
 }
 
+func (x *Bp2BuildMetrics) GetEvents() []*Event {
+	if x != nil {
+		return x.Events
+	}
+	return nil
+}
+
+// Traced runtime event of bp2build.
+type Event struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// The event name.
+	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	// The absolute start time of the event
+	// The number of nanoseconds elapsed since January 1, 1970 UTC.
+	StartTime uint64 `protobuf:"varint,2,opt,name=start_time,json=startTime,proto3" json:"start_time,omitempty"`
+	// The real running time.
+	// The number of nanoseconds elapsed since start_time.
+	RealTime uint64 `protobuf:"varint,3,opt,name=real_time,json=realTime,proto3" json:"real_time,omitempty"`
+}
+
+func (x *Event) Reset() {
+	*x = Event{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_bp2build_metrics_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Event) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Event) ProtoMessage() {}
+
+func (x *Event) ProtoReflect() protoreflect.Message {
+	mi := &file_bp2build_metrics_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Event.ProtoReflect.Descriptor instead.
+func (*Event) Descriptor() ([]byte, []int) {
+	return file_bp2build_metrics_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *Event) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *Event) GetStartTime() uint64 {
+	if x != nil {
+		return x.StartTime
+	}
+	return 0
+}
+
+func (x *Event) GetRealTime() uint64 {
+	if x != nil {
+		return x.RealTime
+	}
+	return 0
+}
+
 var File_bp2build_metrics_proto protoreflect.FileDescriptor
 
 var file_bp2build_metrics_proto_rawDesc = []byte{
 	0x0a, 0x16, 0x62, 0x70, 0x32, 0x62, 0x75, 0x69, 0x6c, 0x64, 0x5f, 0x6d, 0x65, 0x74, 0x72, 0x69,
 	0x63, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x1c, 0x73, 0x6f, 0x6f, 0x6e, 0x67, 0x5f,
 	0x62, 0x75, 0x69, 0x6c, 0x64, 0x5f, 0x62, 0x70, 0x32, 0x62, 0x75, 0x69, 0x6c, 0x64, 0x5f, 0x6d,
-	0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x22, 0xac, 0x06, 0x0a, 0x0f, 0x42, 0x70, 0x32, 0x42, 0x75,
+	0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x22, 0xe9, 0x06, 0x0a, 0x0f, 0x42, 0x70, 0x32, 0x42, 0x75,
 	0x69, 0x6c, 0x64, 0x4d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x12, 0x32, 0x0a, 0x14, 0x67, 0x65,
 	0x6e, 0x65, 0x72, 0x61, 0x74, 0x65, 0x64, 0x4d, 0x6f, 0x64, 0x75, 0x6c, 0x65, 0x43, 0x6f, 0x75,
 	0x6e, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x04, 0x52, 0x14, 0x67, 0x65, 0x6e, 0x65, 0x72, 0x61,
@@ -179,24 +258,34 @@
 	0x42, 0x75, 0x69, 0x6c, 0x64, 0x4d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x2e, 0x54, 0x6f, 0x74,
 	0x61, 0x6c, 0x4d, 0x6f, 0x64, 0x75, 0x6c, 0x65, 0x54, 0x79, 0x70, 0x65, 0x43, 0x6f, 0x75, 0x6e,
 	0x74, 0x45, 0x6e, 0x74, 0x72, 0x79, 0x52, 0x14, 0x74, 0x6f, 0x74, 0x61, 0x6c, 0x4d, 0x6f, 0x64,
-	0x75, 0x6c, 0x65, 0x54, 0x79, 0x70, 0x65, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x1a, 0x41, 0x0a, 0x13,
-	0x52, 0x75, 0x6c, 0x65, 0x43, 0x6c, 0x61, 0x73, 0x73, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x45, 0x6e,
-	0x74, 0x72, 0x79, 0x12, 0x10, 0x0a, 0x03, 0x6b, 0x65, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09,
-	0x52, 0x03, 0x6b, 0x65, 0x79, 0x12, 0x14, 0x0a, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x18, 0x02,
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+	0x75, 0x6c, 0x65, 0x54, 0x79, 0x70, 0x65, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x12, 0x3b, 0x0a, 0x06,
+	0x65, 0x76, 0x65, 0x6e, 0x74, 0x73, 0x18, 0x08, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x23, 0x2e, 0x73,
+	0x6f, 0x6f, 0x6e, 0x67, 0x5f, 0x62, 0x75, 0x69, 0x6c, 0x64, 0x5f, 0x62, 0x70, 0x32, 0x62, 0x75,
+	0x69, 0x6c, 0x64, 0x5f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x2e, 0x45, 0x76, 0x65, 0x6e,
+	0x74, 0x52, 0x06, 0x65, 0x76, 0x65, 0x6e, 0x74, 0x73, 0x1a, 0x41, 0x0a, 0x13, 0x52, 0x75, 0x6c,
+	0x65, 0x43, 0x6c, 0x61, 0x73, 0x73, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x45, 0x6e, 0x74, 0x72, 0x79,
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+	0x61, 0x6c, 0x4d, 0x6f, 0x64, 0x75, 0x6c, 0x65, 0x54, 0x79, 0x70, 0x65, 0x43, 0x6f, 0x75, 0x6e,
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+	0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x04, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x3a, 0x02,
+	0x38, 0x01, 0x22, 0x57, 0x0a, 0x05, 0x45, 0x76, 0x65, 0x6e, 0x74, 0x12, 0x12, 0x0a, 0x04, 0x6e,
+	0x61, 0x6d, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x12,
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+	0x01, 0x28, 0x04, 0x52, 0x09, 0x73, 0x74, 0x61, 0x72, 0x74, 0x54, 0x69, 0x6d, 0x65, 0x12, 0x1b,
+	0x0a, 0x09, 0x72, 0x65, 0x61, 0x6c, 0x5f, 0x74, 0x69, 0x6d, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28,
+	0x04, 0x52, 0x08, 0x72, 0x65, 0x61, 0x6c, 0x54, 0x69, 0x6d, 0x65, 0x42, 0x31, 0x5a, 0x2f, 0x61,
+	0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x2f, 0x73, 0x6f, 0x6f, 0x6e, 0x67, 0x2f, 0x75, 0x69, 0x2f,
+	0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x2f, 0x62, 0x70, 0x32, 0x62, 0x75, 0x69, 0x6c, 0x64,
+	0x5f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x5f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x06,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -211,22 +300,24 @@
 	return file_bp2build_metrics_proto_rawDescData
 }
 
-var file_bp2build_metrics_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_bp2build_metrics_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
 var file_bp2build_metrics_proto_goTypes = []interface{}{
 	(*Bp2BuildMetrics)(nil), // 0: soong_build_bp2build_metrics.Bp2BuildMetrics
-	nil,                     // 1: soong_build_bp2build_metrics.Bp2BuildMetrics.RuleClassCountEntry
-	nil,                     // 2: soong_build_bp2build_metrics.Bp2BuildMetrics.ConvertedModuleTypeCountEntry
-	nil,                     // 3: soong_build_bp2build_metrics.Bp2BuildMetrics.TotalModuleTypeCountEntry
+	(*Event)(nil),           // 1: soong_build_bp2build_metrics.Event
+	nil,                     // 2: soong_build_bp2build_metrics.Bp2BuildMetrics.RuleClassCountEntry
+	nil,                     // 3: soong_build_bp2build_metrics.Bp2BuildMetrics.ConvertedModuleTypeCountEntry
+	nil,                     // 4: soong_build_bp2build_metrics.Bp2BuildMetrics.TotalModuleTypeCountEntry
 }
 var file_bp2build_metrics_proto_depIdxs = []int32{
-	1, // 0: soong_build_bp2build_metrics.Bp2BuildMetrics.ruleClassCount:type_name -> soong_build_bp2build_metrics.Bp2BuildMetrics.RuleClassCountEntry
-	2, // 1: soong_build_bp2build_metrics.Bp2BuildMetrics.convertedModuleTypeCount:type_name -> soong_build_bp2build_metrics.Bp2BuildMetrics.ConvertedModuleTypeCountEntry
-	3, // 2: soong_build_bp2build_metrics.Bp2BuildMetrics.totalModuleTypeCount:type_name -> soong_build_bp2build_metrics.Bp2BuildMetrics.TotalModuleTypeCountEntry
-	3, // [3:3] is the sub-list for method output_type
-	3, // [3:3] is the sub-list for method input_type
-	3, // [3:3] is the sub-list for extension type_name
-	3, // [3:3] is the sub-list for extension extendee
-	0, // [0:3] is the sub-list for field type_name
+	2, // 0: soong_build_bp2build_metrics.Bp2BuildMetrics.ruleClassCount:type_name -> soong_build_bp2build_metrics.Bp2BuildMetrics.RuleClassCountEntry
+	3, // 1: soong_build_bp2build_metrics.Bp2BuildMetrics.convertedModuleTypeCount:type_name -> soong_build_bp2build_metrics.Bp2BuildMetrics.ConvertedModuleTypeCountEntry
+	4, // 2: soong_build_bp2build_metrics.Bp2BuildMetrics.totalModuleTypeCount:type_name -> soong_build_bp2build_metrics.Bp2BuildMetrics.TotalModuleTypeCountEntry
+	1, // 3: soong_build_bp2build_metrics.Bp2BuildMetrics.events:type_name -> soong_build_bp2build_metrics.Event
+	4, // [4:4] is the sub-list for method output_type
+	4, // [4:4] is the sub-list for method input_type
+	4, // [4:4] is the sub-list for extension type_name
+	4, // [4:4] is the sub-list for extension extendee
+	0, // [0:4] is the sub-list for field type_name
 }
 
 func init() { file_bp2build_metrics_proto_init() }
@@ -247,6 +338,18 @@
 				return nil
 			}
 		}
+		file_bp2build_metrics_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Event); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
@@ -254,7 +357,7 @@
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_bp2build_metrics_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   4,
+			NumMessages:   5,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
diff --git a/ui/metrics/bp2build_metrics_proto/bp2build_metrics.proto b/ui/metrics/bp2build_metrics_proto/bp2build_metrics.proto
index 6d98a3d..19a7827 100644
--- a/ui/metrics/bp2build_metrics_proto/bp2build_metrics.proto
+++ b/ui/metrics/bp2build_metrics_proto/bp2build_metrics.proto
@@ -38,4 +38,22 @@
 
   // Counts of total modules by module type.
   map<string, uint64> totalModuleTypeCount = 7;
+
+  // List of traced runtime events of bp2build, useful for tracking bp2build
+  // runtime.
+  repeated Event events = 8;
+}
+
+// Traced runtime event of bp2build.
+message Event {
+  // The event name.
+  string name = 1;
+
+  // The absolute start time of the event
+  // The number of nanoseconds elapsed since January 1, 1970 UTC.
+  uint64 start_time = 2;
+
+  // The real running time.
+  // The number of nanoseconds elapsed since start_time.
+  uint64 real_time = 3;
 }
diff --git a/ui/metrics/metrics_proto/metrics.pb.go b/ui/metrics/metrics_proto/metrics.pb.go
index 2e530b0..26229c6 100644
--- a/ui/metrics/metrics_proto/metrics.pb.go
+++ b/ui/metrics/metrics_proto/metrics.pb.go
@@ -1072,6 +1072,8 @@
 	TotalAllocSize *uint64 `protobuf:"varint,4,opt,name=total_alloc_size,json=totalAllocSize" json:"total_alloc_size,omitempty"`
 	// The approximate maximum size of the heap in soong_build in bytes.
 	MaxHeapSize *uint64 `protobuf:"varint,5,opt,name=max_heap_size,json=maxHeapSize" json:"max_heap_size,omitempty"`
+	// Runtime metrics for soong_build execution.
+	Events []*PerfInfo `protobuf:"bytes,6,rep,name=events" json:"events,omitempty"`
 }
 
 func (x *SoongBuildMetrics) Reset() {
@@ -1141,6 +1143,13 @@
 	return 0
 }
 
+func (x *SoongBuildMetrics) GetEvents() []*PerfInfo {
+	if x != nil {
+		return x.Events
+	}
+	return nil
+}
+
 var File_metrics_proto protoreflect.FileDescriptor
 
 var file_metrics_proto_rawDesc = []byte{
@@ -1340,7 +1349,7 @@
 	0x67, 0x5f, 0x62, 0x75, 0x69, 0x6c, 0x64, 0x5f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x2e,
 	0x43, 0x72, 0x69, 0x74, 0x69, 0x63, 0x61, 0x6c, 0x55, 0x73, 0x65, 0x72, 0x4a, 0x6f, 0x75, 0x72,
 	0x6e, 0x65, 0x79, 0x4d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x52, 0x04, 0x63, 0x75, 0x6a, 0x73,
-	0x22, 0xc3, 0x01, 0x0a, 0x11, 0x53, 0x6f, 0x6f, 0x6e, 0x67, 0x42, 0x75, 0x69, 0x6c, 0x64, 0x4d,
+	0x22, 0xfa, 0x01, 0x0a, 0x11, 0x53, 0x6f, 0x6f, 0x6e, 0x67, 0x42, 0x75, 0x69, 0x6c, 0x64, 0x4d,
 	0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x12, 0x18, 0x0a, 0x07, 0x6d, 0x6f, 0x64, 0x75, 0x6c, 0x65,
 	0x73, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x07, 0x6d, 0x6f, 0x64, 0x75, 0x6c, 0x65, 0x73,
 	0x12, 0x1a, 0x0a, 0x08, 0x76, 0x61, 0x72, 0x69, 0x61, 0x6e, 0x74, 0x73, 0x18, 0x02, 0x20, 0x01,
@@ -1352,9 +1361,13 @@
 	0x28, 0x04, 0x52, 0x0e, 0x74, 0x6f, 0x74, 0x61, 0x6c, 0x41, 0x6c, 0x6c, 0x6f, 0x63, 0x53, 0x69,
 	0x7a, 0x65, 0x12, 0x22, 0x0a, 0x0d, 0x6d, 0x61, 0x78, 0x5f, 0x68, 0x65, 0x61, 0x70, 0x5f, 0x73,
 	0x69, 0x7a, 0x65, 0x18, 0x05, 0x20, 0x01, 0x28, 0x04, 0x52, 0x0b, 0x6d, 0x61, 0x78, 0x48, 0x65,
-	0x61, 0x70, 0x53, 0x69, 0x7a, 0x65, 0x42, 0x28, 0x5a, 0x26, 0x61, 0x6e, 0x64, 0x72, 0x6f, 0x69,
-	0x64, 0x2f, 0x73, 0x6f, 0x6f, 0x6e, 0x67, 0x2f, 0x75, 0x69, 0x2f, 0x6d, 0x65, 0x74, 0x72, 0x69,
-	0x63, 0x73, 0x2f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x5f, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x61, 0x70, 0x53, 0x69, 0x7a, 0x65, 0x12, 0x35, 0x0a, 0x06, 0x65, 0x76, 0x65, 0x6e, 0x74, 0x73,
+	0x18, 0x06, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x1d, 0x2e, 0x73, 0x6f, 0x6f, 0x6e, 0x67, 0x5f, 0x62,
+	0x75, 0x69, 0x6c, 0x64, 0x5f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x2e, 0x50, 0x65, 0x72,
+	0x66, 0x49, 0x6e, 0x66, 0x6f, 0x52, 0x06, 0x65, 0x76, 0x65, 0x6e, 0x74, 0x73, 0x42, 0x28, 0x5a,
+	0x26, 0x61, 0x6e, 0x64, 0x72, 0x6f, 0x69, 0x64, 0x2f, 0x73, 0x6f, 0x6f, 0x6e, 0x67, 0x2f, 0x75,
+	0x69, 0x2f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x2f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63,
+	0x73, 0x5f, 0x70, 0x72, 0x6f, 0x74, 0x6f,
 }
 
 var (
@@ -1403,11 +1416,12 @@
 	2,  // 14: soong_build_metrics.ModuleTypeInfo.build_system:type_name -> soong_build_metrics.ModuleTypeInfo.BuildSystem
 	3,  // 15: soong_build_metrics.CriticalUserJourneyMetrics.metrics:type_name -> soong_build_metrics.MetricsBase
 	9,  // 16: soong_build_metrics.CriticalUserJourneysMetrics.cujs:type_name -> soong_build_metrics.CriticalUserJourneyMetrics
-	17, // [17:17] is the sub-list for method output_type
-	17, // [17:17] is the sub-list for method input_type
-	17, // [17:17] is the sub-list for extension type_name
-	17, // [17:17] is the sub-list for extension extendee
-	0,  // [0:17] is the sub-list for field type_name
+	6,  // 17: soong_build_metrics.SoongBuildMetrics.events:type_name -> soong_build_metrics.PerfInfo
+	18, // [18:18] is the sub-list for method output_type
+	18, // [18:18] is the sub-list for method input_type
+	18, // [18:18] is the sub-list for extension type_name
+	18, // [18:18] is the sub-list for extension extendee
+	0,  // [0:18] is the sub-list for field type_name
 }
 
 func init() { file_metrics_proto_init() }
diff --git a/ui/metrics/metrics_proto/metrics.proto b/ui/metrics/metrics_proto/metrics.proto
index db0a14a..26e4d73 100644
--- a/ui/metrics/metrics_proto/metrics.proto
+++ b/ui/metrics/metrics_proto/metrics.proto
@@ -235,4 +235,7 @@
 
   // The approximate maximum size of the heap in soong_build in bytes.
   optional uint64 max_heap_size = 5;
+
+  // Runtime metrics for soong_build execution.
+  repeated PerfInfo events = 6;
 }