Log timings for shutdown stages

Renamed BootTimingsTraceLog to TimingsTraceLog. It is now used for
 boot and shutdown logging.

Added measurements for main stages of shutdown in the system server:
ShutdownTiming: SendShutdownBroadcast took to complete: 734ms
ShutdownTiming: ShutdownActivityManager took to complete: 203ms
ShutdownTiming: ShutdownPackageManager took to complete: 17ms
ShutdownTiming: ShutdownBt took to complete: 533ms
ShutdownTiming: ShutdownRadio took to complete: 534ms
ShutdownTiming: ShutdownNfc took to complete: 1536ms
ShutdownTiming: ShutdownRadios took to complete: 1538ms
ShutdownTiming: ShutdownStorageManager took to complete: 906ms
ShutdownTiming: SystemServerShutdown took to complete: 3918ms

Bug: 64569080
Test: shutdown/reboot and check logs
Change-Id: I636c045852cd1ed6be1c58af6608f70e95756389

1 files changed, 6 insertions, 7 deletions

diff --git a/services/java/com/android/server/SystemServer.java b/services/java/com/android/server/SystemServer.java
index a1b9099f8bab..3c1262f089bc 100644
--- a/services/java/com/android/server/SystemServer.java
+++ b/services/java/com/android/server/SystemServer.java
@@ -45,7 +45,7 @@ import android.os.SystemProperties;
 import android.os.Trace;
 import android.os.UserHandle;
 import android.os.storage.IStorageManager;
-import android.util.BootTimingsTraceLog;
+import android.util.TimingsTraceLog;
 import android.util.DisplayMetrics;
 import android.util.EventLog;
 import android.util.Slog;
@@ -121,7 +121,6 @@ import java.io.File;
 import java.io.IOException;
 import java.util.Locale;
 import java.util.Timer;
-import java.util.TimerTask;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.Future;
 
@@ -135,8 +134,8 @@ public final class SystemServer {
     // Tag for timing measurement of non-main asynchronous operations.
     private static final String SYSTEM_SERVER_TIMING_ASYNC_TAG = SYSTEM_SERVER_TIMING_TAG + "Async";
 
-    private static final BootTimingsTraceLog BOOT_TIMINGS_TRACE_LOG
-            = new BootTimingsTraceLog(SYSTEM_SERVER_TIMING_TAG, Trace.TRACE_TAG_SYSTEM_SERVER);
+    private static final TimingsTraceLog BOOT_TIMINGS_TRACE_LOG
+            = new TimingsTraceLog(SYSTEM_SERVER_TIMING_TAG, Trace.TRACE_TAG_SYSTEM_SERVER);
 
     private static final String ENCRYPTING_STATE = "trigger_restart_min_framework";
     private static final String ENCRYPTED_STATE = "1";
@@ -638,7 +637,7 @@ public final class SystemServer {
         // Start sensor service in a separate thread. Completion should be checked
         // before using it.
         mSensorServiceStart = SystemServerInitThreadPool.get().submit(() -> {
-            BootTimingsTraceLog traceLog = new BootTimingsTraceLog(
+            TimingsTraceLog traceLog = new TimingsTraceLog(
                     SYSTEM_SERVER_TIMING_ASYNC_TAG, Trace.TRACE_TAG_SYSTEM_SERVER);
             traceLog.traceBegin(START_SENSOR_SERVICE);
             startSensorService();
@@ -736,7 +735,7 @@ public final class SystemServer {
             mZygotePreload = SystemServerInitThreadPool.get().submit(() -> {
                 try {
                     Slog.i(TAG, SECONDARY_ZYGOTE_PRELOAD);
-                    BootTimingsTraceLog traceLog = new BootTimingsTraceLog(
+                    TimingsTraceLog traceLog = new TimingsTraceLog(
                             SYSTEM_SERVER_TIMING_ASYNC_TAG, Trace.TRACE_TAG_SYSTEM_SERVER);
                     traceLog.traceBegin(SECONDARY_ZYGOTE_PRELOAD);
                     if (!Process.zygoteProcess.preloadDefault(Build.SUPPORTED_32_BIT_ABIS[0])) {
@@ -1686,7 +1685,7 @@ public final class SystemServer {
             if (!mOnlyCore) {
                 webviewPrep = SystemServerInitThreadPool.get().submit(() -> {
                     Slog.i(TAG, WEBVIEW_PREPARATION);
-                    BootTimingsTraceLog traceLog = new BootTimingsTraceLog(
+                    TimingsTraceLog traceLog = new TimingsTraceLog(
                             SYSTEM_SERVER_TIMING_ASYNC_TAG, Trace.TRACE_TAG_SYSTEM_SERVER);
                     traceLog.traceBegin(WEBVIEW_PREPARATION);
                     ConcurrentUtils.waitForFutureNoInterrupt(mZygotePreload, "Zygote preload");