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Commit 96e75fca authored by Abhimanyu Garg's avatar Abhimanyu Garg Committed by Linux Build Service Account
Browse files

Perf: Adding hooks for IO prefetcher into framework 

Adding function call to start the io prefetcher during
application launch.

Change-Id: Id6d3fc37509631bf476b2a27dfe45381f4086dc1
parent be9c0764

core/java/android/util/BoostFramework.java

+36 −0
Original line number Diff line number Diff line
@@ -49,6 +49,8 @@ public class BoostFramework { 
    private static Method mAcquireFunc = null;

    private static Method mReleaseFunc = null;

    private static Method mAcquireTouchFunc = null;

    private static Method mIOPStart = null;

    private static Method mIOPStop  = null;

    private static Constructor<Class> mConstructor = null;



/** @hide */
@@ -79,6 +81,14 @@ public class BoostFramework { 
                mAcquireTouchFunc =  perfClass.getDeclaredMethod("perfLockAcquireTouch", argClasses);

                Log.v(TAG,"mAcquireTouchFunc method = " + mAcquireTouchFunc);



                argClasses = new Class[] {int.class, String.class};

                mIOPStart =  perfClass.getDeclaredMethod("perfIOPrefetchStart", argClasses);

                Log.v(TAG,"mIOPStart method = " + mIOPStart);



                argClasses = new Class[] {};

                mIOPStop =  perfClass.getDeclaredMethod("perfIOPrefetchStop", argClasses);

                Log.v(TAG,"mIOPStop method = " + mIOPStop);



                mIsLoaded = true;

            }

            catch(Exception e) {
@@ -145,4 +155,30 @@ public class BoostFramework { 
        return ret;

    }



/** @hide */

    public int perfIOPrefetchStart(int pid, String pkg_name)

    {

        int ret = -1;

        try {

            Object retVal = mIOPStart.invoke(mPerf,pid,pkg_name);

            ret = (int)retVal;

        } catch(Exception e) {

            Log.e(TAG,"Exception " + e);

        }

        return ret;

    }



/** @hide */

    public int perfIOPrefetchStop()

    {

        int ret = -1;

         try {

             Object retVal = mIOPStop.invoke(mPerf);

             ret = (int)retVal;

         } catch(Exception e) {

             Log.e(TAG,"Exception " + e);

         }

         return ret;

    }



};

services/core/java/com/android/server/am/ActivityManagerService.java

+12 −0
Original line number Diff line number Diff line
@@ -71,6 +71,7 @@ import android.util.ArraySet; 
import android.util.DebugUtils;

import android.util.SparseIntArray;

import android.view.Display;

import android.util.BoostFramework;















import com.android.internal.R;















import com.android.internal.annotations.GuardedBy;










@@ -3359,6 +3360,17 @@ public final class ActivityManagerService extends ActivityManagerNative













            checkTime(startTime, "startProcess: building log message");















            StringBuilder buf = mStringBuilder;















            buf.setLength(0);













            if(hostingType.equals("activity"))













            {













                BoostFramework mPerf = null;













                if (null == mPerf) {













                    mPerf = new BoostFramework();













                }













                if (mPerf != null) {













                    mPerf.perfIOPrefetchStart(startResult.pid,app.processName);













                }













            }



























            buf.append("Start proc ");















            buf.append(startResult.pid);















            buf.append(':');

































services/core/java/com/android/server/am/ActivityStackSupervisor.java



+16
−0




























Original line number
Diff line number
Diff line








@@ -162,6 +162,7 @@ public final class ActivityStackSupervisor implements DisplayListener {













    static final int SLEEP_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG + 3;















    static final int LAUNCH_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG + 4;















    public BoostFramework mPerf = null;













    public BoostFramework mPerf_iop = null;















    public boolean mIsPerfBoostEnabled = false;















    public int lBoostTimeOut = 0;















    public int lDisPackTimeOut = 0;










@@ -3091,6 +3092,14 @@ public final class ActivityStackSupervisor implements DisplayListener {













                    if(ar.state == ActivityState.DESTROYED ) {















                        /*It's a new app launch */















                        acquireAppLaunchPerfLock();



























                        // Strat IOP













                        if (mPerf_iop == null) {













                            mPerf_iop = new BoostFramework();













                        }













                        if (mPerf_iop != null) {













                            mPerf_iop.perfIOPrefetchStart(-1,r.packageName);













                        }















                    }















                    return ar;















                }









@@ -3098,6 +3107,13 @@ public final class ActivityStackSupervisor implements DisplayListener {













        }















        /* Acquire perf lock during new app launch */















        acquireAppLaunchPerfLock();













        //Start IOP













        if (mPerf_iop == null) {













            mPerf_iop = new BoostFramework();













        }













        if (mPerf_iop != null) {













            mPerf_iop.perfIOPrefetchStart(-1,r.packageName);













        }































        if (DEBUG_TASKS) Slog.d(TAG_TASKS, "No task found");















        return null;