diff --git a/ui/metrics/bazel_metrics_proto/bazel_metrics.pb.go b/ui/metrics/bazel_metrics_proto/bazel_metrics.pb.go
new file mode 100644
index 0000000..760b592
--- /dev/null
+++ b/ui/metrics/bazel_metrics_proto/bazel_metrics.pb.go
@@ -0,0 +1,267 @@
+// Copyright 2022 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.21.7
+// source: bazel_metrics.proto
+
+package bazel_metrics_proto
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type BazelMetrics struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	PhaseTimings []*PhaseTiming `protobuf:"bytes,1,rep,name=phase_timings,json=phaseTimings,proto3" json:"phase_timings,omitempty"`
+	Total        *int64         `protobuf:"varint,2,opt,name=total,proto3,oneof" json:"total,omitempty"`
+}
+
+func (x *BazelMetrics) Reset() {
+	*x = BazelMetrics{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_bazel_metrics_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *BazelMetrics) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*BazelMetrics) ProtoMessage() {}
+
+func (x *BazelMetrics) ProtoReflect() protoreflect.Message {
+	mi := &file_bazel_metrics_proto_msgTypes[0]
+	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 BazelMetrics.ProtoReflect.Descriptor instead.
+func (*BazelMetrics) Descriptor() ([]byte, []int) {
+	return file_bazel_metrics_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *BazelMetrics) GetPhaseTimings() []*PhaseTiming {
+	if x != nil {
+		return x.PhaseTimings
+	}
+	return nil
+}
+
+func (x *BazelMetrics) GetTotal() int64 {
+	if x != nil && x.Total != nil {
+		return *x.Total
+	}
+	return 0
+}
+
+type PhaseTiming struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// E.g. "execution", "analysis", "launch"
+	PhaseName     *string `protobuf:"bytes,1,opt,name=phase_name,json=phaseName,proto3,oneof" json:"phase_name,omitempty"`
+	DurationNanos *int64  `protobuf:"varint,2,opt,name=duration_nanos,json=durationNanos,proto3,oneof" json:"duration_nanos,omitempty"`
+	// What percentage of the build time this phase took
+	PercentageMillis *int32 `protobuf:"varint,3,opt,name=percentage_millis,json=percentageMillis,proto3,oneof" json:"percentage_millis,omitempty"`
+}
+
+func (x *PhaseTiming) Reset() {
+	*x = PhaseTiming{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_bazel_metrics_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PhaseTiming) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PhaseTiming) ProtoMessage() {}
+
+func (x *PhaseTiming) ProtoReflect() protoreflect.Message {
+	mi := &file_bazel_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 PhaseTiming.ProtoReflect.Descriptor instead.
+func (*PhaseTiming) Descriptor() ([]byte, []int) {
+	return file_bazel_metrics_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *PhaseTiming) GetPhaseName() string {
+	if x != nil && x.PhaseName != nil {
+		return *x.PhaseName
+	}
+	return ""
+}
+
+func (x *PhaseTiming) GetDurationNanos() int64 {
+	if x != nil && x.DurationNanos != nil {
+		return *x.DurationNanos
+	}
+	return 0
+}
+
+func (x *PhaseTiming) GetPercentageMillis() int32 {
+	if x != nil && x.PercentageMillis != nil {
+		return *x.PercentageMillis
+	}
+	return 0
+}
+
+var File_bazel_metrics_proto protoreflect.FileDescriptor
+
+var file_bazel_metrics_proto_rawDesc = []byte{
+	0x0a, 0x13, 0x62, 0x61, 0x7a, 0x65, 0x6c, 0x5f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x2e,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x19, 0x73, 0x6f, 0x6f, 0x6e, 0x67, 0x5f, 0x62, 0x75, 0x69,
+	0x6c, 0x64, 0x5f, 0x62, 0x61, 0x7a, 0x65, 0x6c, 0x5f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73,
+	0x22, 0x80, 0x01, 0x0a, 0x0c, 0x42, 0x61, 0x7a, 0x65, 0x6c, 0x4d, 0x65, 0x74, 0x72, 0x69, 0x63,
+	0x73, 0x12, 0x4b, 0x0a, 0x0d, 0x70, 0x68, 0x61, 0x73, 0x65, 0x5f, 0x74, 0x69, 0x6d, 0x69, 0x6e,
+	0x67, 0x73, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x26, 0x2e, 0x73, 0x6f, 0x6f, 0x6e, 0x67,
+	0x5f, 0x62, 0x75, 0x69, 0x6c, 0x64, 0x5f, 0x62, 0x61, 0x7a, 0x65, 0x6c, 0x5f, 0x6d, 0x65, 0x74,
+	0x72, 0x69, 0x63, 0x73, 0x2e, 0x50, 0x68, 0x61, 0x73, 0x65, 0x54, 0x69, 0x6d, 0x69, 0x6e, 0x67,
+	0x52, 0x0c, 0x70, 0x68, 0x61, 0x73, 0x65, 0x54, 0x69, 0x6d, 0x69, 0x6e, 0x67, 0x73, 0x12, 0x19,
+	0x0a, 0x05, 0x74, 0x6f, 0x74, 0x61, 0x6c, 0x18, 0x02, 0x20, 0x01, 0x28, 0x03, 0x48, 0x00, 0x52,
+	0x05, 0x74, 0x6f, 0x74, 0x61, 0x6c, 0x88, 0x01, 0x01, 0x42, 0x08, 0x0a, 0x06, 0x5f, 0x74, 0x6f,
+	0x74, 0x61, 0x6c, 0x22, 0xc7, 0x01, 0x0a, 0x0b, 0x50, 0x68, 0x61, 0x73, 0x65, 0x54, 0x69, 0x6d,
+	0x69, 0x6e, 0x67, 0x12, 0x22, 0x0a, 0x0a, 0x70, 0x68, 0x61, 0x73, 0x65, 0x5f, 0x6e, 0x61, 0x6d,
+	0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x48, 0x00, 0x52, 0x09, 0x70, 0x68, 0x61, 0x73, 0x65,
+	0x4e, 0x61, 0x6d, 0x65, 0x88, 0x01, 0x01, 0x12, 0x2a, 0x0a, 0x0e, 0x64, 0x75, 0x72, 0x61, 0x74,
+	0x69, 0x6f, 0x6e, 0x5f, 0x6e, 0x61, 0x6e, 0x6f, 0x73, 0x18, 0x02, 0x20, 0x01, 0x28, 0x03, 0x48,
+	0x01, 0x52, 0x0d, 0x64, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x4e, 0x61, 0x6e, 0x6f, 0x73,
+	0x88, 0x01, 0x01, 0x12, 0x30, 0x0a, 0x11, 0x70, 0x65, 0x72, 0x63, 0x65, 0x6e, 0x74, 0x61, 0x67,
+	0x65, 0x5f, 0x6d, 0x69, 0x6c, 0x6c, 0x69, 0x73, 0x18, 0x03, 0x20, 0x01, 0x28, 0x05, 0x48, 0x02,
+	0x52, 0x10, 0x70, 0x65, 0x72, 0x63, 0x65, 0x6e, 0x74, 0x61, 0x67, 0x65, 0x4d, 0x69, 0x6c, 0x6c,
+	0x69, 0x73, 0x88, 0x01, 0x01, 0x42, 0x0d, 0x0a, 0x0b, 0x5f, 0x70, 0x68, 0x61, 0x73, 0x65, 0x5f,
+	0x6e, 0x61, 0x6d, 0x65, 0x42, 0x11, 0x0a, 0x0f, 0x5f, 0x64, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f,
+	0x6e, 0x5f, 0x6e, 0x61, 0x6e, 0x6f, 0x73, 0x42, 0x14, 0x0a, 0x12, 0x5f, 0x70, 0x65, 0x72, 0x63,
+	0x65, 0x6e, 0x74, 0x61, 0x67, 0x65, 0x5f, 0x6d, 0x69, 0x6c, 0x6c, 0x69, 0x73, 0x42, 0x2e, 0x5a,
+	0x2c, 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, 0x61, 0x7a, 0x65, 0x6c, 0x5f,
+	0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x5f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x06, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_bazel_metrics_proto_rawDescOnce sync.Once
+	file_bazel_metrics_proto_rawDescData = file_bazel_metrics_proto_rawDesc
+)
+
+func file_bazel_metrics_proto_rawDescGZIP() []byte {
+	file_bazel_metrics_proto_rawDescOnce.Do(func() {
+		file_bazel_metrics_proto_rawDescData = protoimpl.X.CompressGZIP(file_bazel_metrics_proto_rawDescData)
+	})
+	return file_bazel_metrics_proto_rawDescData
+}
+
+var file_bazel_metrics_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_bazel_metrics_proto_goTypes = []interface{}{
+	(*BazelMetrics)(nil), // 0: soong_build_bazel_metrics.BazelMetrics
+	(*PhaseTiming)(nil),  // 1: soong_build_bazel_metrics.PhaseTiming
+}
+var file_bazel_metrics_proto_depIdxs = []int32{
+	1, // 0: soong_build_bazel_metrics.BazelMetrics.phase_timings:type_name -> soong_build_bazel_metrics.PhaseTiming
+	1, // [1:1] is the sub-list for method output_type
+	1, // [1:1] is the sub-list for method input_type
+	1, // [1:1] is the sub-list for extension type_name
+	1, // [1:1] is the sub-list for extension extendee
+	0, // [0:1] is the sub-list for field type_name
+}
+
+func init() { file_bazel_metrics_proto_init() }
+func file_bazel_metrics_proto_init() {
+	if File_bazel_metrics_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_bazel_metrics_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*BazelMetrics); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_bazel_metrics_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PhaseTiming); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	file_bazel_metrics_proto_msgTypes[0].OneofWrappers = []interface{}{}
+	file_bazel_metrics_proto_msgTypes[1].OneofWrappers = []interface{}{}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_bazel_metrics_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   2,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_bazel_metrics_proto_goTypes,
+		DependencyIndexes: file_bazel_metrics_proto_depIdxs,
+		MessageInfos:      file_bazel_metrics_proto_msgTypes,
+	}.Build()
+	File_bazel_metrics_proto = out.File
+	file_bazel_metrics_proto_rawDesc = nil
+	file_bazel_metrics_proto_goTypes = nil
+	file_bazel_metrics_proto_depIdxs = nil
+}
diff --git a/ui/metrics/bazel_metrics_proto/bazel_metrics.proto b/ui/metrics/bazel_metrics_proto/bazel_metrics.proto
new file mode 100644
index 0000000..e78a6b9
--- /dev/null
+++ b/ui/metrics/bazel_metrics_proto/bazel_metrics.proto
@@ -0,0 +1,31 @@
+// Copyright 2022 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package soong_build_bazel_metrics;
+option go_package = "android/soong/ui/metrics/bazel_metrics_proto";
+
+message BazelMetrics {
+  repeated PhaseTiming phase_timings = 1;
+  optional int64 total = 2;
+}
+
+message PhaseTiming {
+  // E.g. "execution", "analysis", "launch"
+  optional string phase_name = 1;
+  optional int64 duration_nanos = 2;
+  // What percentage of the build time this phase took
+  optional int32 percentage_millis = 3;
+}
diff --git a/ui/metrics/bazel_metrics_proto/regen.sh b/ui/metrics/bazel_metrics_proto/regen.sh
new file mode 100755
index 0000000..2cf2bf6
--- /dev/null
+++ b/ui/metrics/bazel_metrics_proto/regen.sh
@@ -0,0 +1,29 @@
+#!/bin/bash -e
+
+# Copyright 2022 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Generates the golang source file of bp2build_metrics.proto protobuf file.
+
+function die() { echo "ERROR: $1" >&2; exit 1; }
+
+readonly error_msg="Maybe you need to run 'lunch aosp_arm-eng && m aprotoc blueprint_tools'?"
+
+if ! hash aprotoc &>/dev/null; then
+  die "could not find aprotoc. ${error_msg}"
+fi
+
+if ! aprotoc --go_out=paths=source_relative:. bazel_metrics.proto; then
+  die "build failed. ${error_msg}"
+fi