Add iteration-limited mode to FrameworkPerf

You can run tests for exactly N iterations regardless of duration now,
in addition to the previous time-limited behavior.

(Clean cherry-pick to break a dependency on a previous patch that
needs work before being committed.)

Change-Id: I2e6cf511bbe968a6f95391567658722e87dfa1fe

Author: Christopher Tate

tests/FrameworkPerf/res/layout/main.xml

@@ -59,6 +59,22 @@
         android:textAppearance="?android:attr/textAppearanceSmall"
         />
 
+    <LinearLayout android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:layout_marginTop="10dp"
+        >
+        <TextView android:layout_width="wrap_content" android:layout_height="wrap_content"
+            android:textAppearance="?android:attr/textAppearanceMedium"
+            android:text="Limit by: "
+            />
+        <Spinner android:id="@+id/limitspinner"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:drawSelectorOnTop="true"
+        />
+    </LinearLayout>
+
     <LinearLayout android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:orientation="horizontal"
@@ -67,6 +83,7 @@
         <TextView android:layout_width="wrap_content" android:layout_height="wrap_content"
             android:textAppearance="?android:attr/textAppearanceMedium"
             android:text="Test time (ms): "
+            android:id="@+id/limitlabel"
             />
         <EditText android:id="@+id/testtime"
             android:layout_width="match_parent"

tests/FrameworkPerf/src/com/android/frameworkperf/FrameworkPerfActivity.java

@@ -50,6 +50,8 @@ public class FrameworkPerfActivity extends Activity
 
     Spinner mFgSpinner;
     Spinner mBgSpinner;
+    Spinner mLimitSpinner;
+    TextView mLimitLabel;
     TextView mTestTime;
     Button mStartButton;
     Button mStopButton;
@@ -58,10 +60,12 @@ public class FrameworkPerfActivity extends Activity
     PowerManager.WakeLock mPartialWakeLock;
 
     long mMaxRunTime = 5000;
+    boolean mLimitIsIterations;
     boolean mStarted;
 
     final String[] mAvailOpLabels;
     final String[] mAvailOpDescriptions;
+    final String[] mLimitLabels = { "Time", "Iterations" };
 
     int mFgTestIndex = -1;
     int mBgTestIndex = -1;
@@ -169,8 +173,15 @@ public void onCreate(Bundle savedInstanceState) {
         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
         mBgSpinner.setAdapter(adapter);
         mBgSpinner.setOnItemSelectedListener(this);
+        mLimitSpinner = (Spinner) findViewById(R.id.limitspinner);
+        adapter = new ArrayAdapter<String>(this,
+                android.R.layout.simple_spinner_item, mLimitLabels);
+        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+        mLimitSpinner.setAdapter(adapter);
+        mLimitSpinner.setOnItemSelectedListener(this);
 
         mTestTime = (TextView)findViewById(R.id.testtime);
+        mLimitLabel = (TextView)findViewById(R.id.limitlabel);
 
         mStartButton = (Button)findViewById(R.id.start);
         mStartButton.setOnClickListener(new View.OnClickListener() {
@@ -196,16 +207,23 @@ public void onCreate(Bundle savedInstanceState) {
 
     @Override
     public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
-        if (parent == mFgSpinner || parent == mBgSpinner) {
+        if (parent == mFgSpinner || parent == mBgSpinner || parent == mLimitSpinner) {
             TestService.Op op = TestService.mAvailOps[position];
             if (parent == mFgSpinner) {
                 mFgTestIndex = position;
                 mFgTest = op;
                 ((TextView)findViewById(R.id.fgtext)).setText(mAvailOpDescriptions[position]);
-            } else {
+            } else if (parent == mBgSpinner) {
                 mBgTestIndex = position;
                 mBgTest = op;
                 ((TextView)findViewById(R.id.bgtext)).setText(mAvailOpDescriptions[position]);
+            } else if (parent == mLimitSpinner) {
+                mLimitIsIterations = (position != 0);
+                if (mLimitIsIterations) {
+                    mLimitLabel.setText("Iterations: ");
+                } else {
+                    mLimitLabel.setText("Test time (ms): ");
+                }
             }
         }
     }
@@ -234,7 +252,11 @@ void dispatchCurOp(TestConnection conn) {
             return;
         }
         TestArgs args = new TestArgs();
-        args.maxTime = mMaxRunTime;
+        if (mLimitIsIterations) {
+            args.maxOps = mMaxRunTime;
+        } else {
+            args.maxTime = mMaxRunTime;
+        }
         if (mFgTestIndex == 0 && mBgTestIndex == 0) {
             args.combOp = mCurOpIndex;
         } else if (mFgTestIndex != 0 && mBgTestIndex != 0) {
@@ -376,6 +398,7 @@ void startRunning() {
             mTestTime.setEnabled(false);
             mFgSpinner.setEnabled(false);
             mBgSpinner.setEnabled(false);
+            mLimitSpinner.setEnabled(false);
             updateWakeLock();
             startService(new Intent(this, SchedulerService.class));
             mCurOpIndex = 0;
@@ -397,6 +420,7 @@ void stopRunning() {
             mTestTime.setEnabled(true);
             mFgSpinner.setEnabled(true);
             mBgSpinner.setEnabled(true);
+            mLimitSpinner.setEnabled(true);
             updateWakeLock();
             stopService(new Intent(this, SchedulerService.class));
             synchronized (mResults) {

tests/FrameworkPerf/src/com/android/frameworkperf/TestArgs.java

@@ -21,6 +21,7 @@
 
 public class TestArgs implements Parcelable {
     long maxTime;
+    long maxOps = -1;
     int combOp = -1;
     int fgOp = -1;
     int bgOp = -1;
@@ -30,6 +31,7 @@ public TestArgs() {
 
     public TestArgs(Parcel source) {
         maxTime = source.readLong();
+        maxOps = source.readLong();
         combOp = source.readInt();
         fgOp = source.readInt();
         bgOp = source.readInt();
@@ -43,6 +45,7 @@ public int describeContents() {
     @Override
     public void writeToParcel(Parcel dest, int flags) {
         dest.writeLong(maxTime);
+        dest.writeLong(maxOps);
         dest.writeInt(combOp);
         dest.writeInt(fgOp);
         dest.writeInt(bgOp);

tests/FrameworkPerf/src/com/android/frameworkperf/TestService.java

@@ -224,6 +224,7 @@ enum BackgroundMode {
     public class TestRunner {
         Handler mHandler;
         long mMaxRunTime;
+        long mMaxOps;
         Op mForegroundOp;
         Op mBackgroundOp;
         Runnable mDoneCallback;
@@ -277,6 +278,7 @@ public String getBackgroundLongName() {
         public void run(Handler handler, TestArgs args, Runnable doneCallback) {
             mHandler = handler;
             mMaxRunTime = args.maxTime;
+            mMaxOps = args.maxOps;
             if (args.combOp >= 0) {
                 mForegroundOp = mOpPairs[args.combOp];
                 mBackgroundOp = mOpPairs[args.combOp+1];
@@ -352,9 +354,18 @@ private boolean evalRepeat(boolean bgRunning, boolean fgRunning) {
                 if (!mBackgroundRunning && !mForegroundRunning) {
                     return false;
                 }
-                long now = SystemClock.uptimeMillis();
-                if (now > (mStartTime+mMaxRunTime)) {
-                    return false;
+                if (mMaxOps > 0) {
+                    // iteration-limited case
+                    if (mForegroundOps >= mMaxOps) {
+                        return false;
+                    }
+                    mForegroundOps++;
+                } else {
+                    // time-limited case
+                    long now = SystemClock.uptimeMillis();
+                    if (now > (mStartTime+mMaxRunTime)) {
+                        return false;
+                    }
                 }
                 return true;
             }