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Commit dc9b9e22 authored by Chitti Babu Theegala's avatar Chitti Babu Theegala
Browse files

Perf: Disable KSM during new application launch 

Use perlock api to disable KSM during new visible application
launch. Enable it back either when the application windows are
drawn or after 2 sec from the start of the new application.

Change-Id: I0aabab60f23fa549596aa46b436a7e464a6b1641
parent c6829793

core/java/android/widget/OverScroller.java

+1 −1
Original line number Diff line number Diff line
@@ -786,7 +786,7 @@ public class OverScroller { 


                if (mPerf != null) {

                    mIsPerfLockAcquired = true;

                    mPerf.perfLockAcquire(mDuration, mPerf.CPUS_ON_2, 0x20B, 0x30B);

                    mPerf.perfLockAcquire(mDuration, mPerf.CPUS_ON_2, 0x20B, 0x30B,0x1B00);

                }

            }

services/java/Android.mk

+1 −1
Original line number Diff line number Diff line
@@ -11,7 +11,7 @@ LOCAL_SRC_FILES := \ 


LOCAL_MODULE:= services



LOCAL_JAVA_LIBRARIES := android.policy conscrypt telephony-common

LOCAL_JAVA_LIBRARIES := android.policy conscrypt telephony-common org.codeaurora.Performance



include $(BUILD_JAVA_LIBRARY)

services/java/com/android/server/am/ActivityRecord.java

+6 −0
Original line number Diff line number Diff line
@@ -52,6 +52,7 @@ import java.lang.ref.WeakReference; 
import java.util.ArrayList;

import java.util.HashSet;



import org.codeaurora.Performance;

/**

 * An entry in the history stack, representing an activity.

 */
@@ -888,6 +889,11 @@ final class ActivityRecord { 
        synchronized(service) {

            if (displayStartTime != 0) {

                reportLaunchTimeLocked(SystemClock.uptimeMillis());

                if(mStackSupervisor.mIsPerfLockAcquired == true)

                {

                    mStackSupervisor.mPerf.perfLockRelease();

                    mStackSupervisor.mIsPerfLockAcquired = false;

                }

            }

            startTime = 0;

            finishLaunchTickingLocked();

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

+14 −1
Original line number Diff line number Diff line
@@ -83,6 +83,10 @@ import java.io.PrintWriter; 
import java.util.ArrayList;

import java.util.List;





import org.codeaurora.Performance;





public final class ActivityStackSupervisor {

    static final boolean DEBUG = ActivityManagerService.DEBUG || false;

    static final boolean DEBUG_ADD_REMOVE = DEBUG || false;
@@ -107,7 +111,8 @@ public final class ActivityStackSupervisor { 
    static final int RESUME_TOP_ACTIVITY_MSG = FIRST_SUPERVISOR_STACK_MSG + 2;

    static final int SLEEP_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG + 3;

    static final int LAUNCH_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG + 4;



    public Performance mPerf = null;

    public boolean mIsPerfLockAcquired = false;

    // For debugging to make sure the caller when acquiring/releasing our

    // wake lock is the system process.

    static final boolean VALIDATE_WAKE_LOCK_CALLER = false;
@@ -2102,6 +2107,14 @@ public final class ActivityStackSupervisor { 
                return ar;

            }

        }

        /* Acquire perf lock during new app launch */

        if (mPerf == null) {

            mPerf = new Performance();

        }

        if (mPerf != null && mIsPerfLockAcquired == false) {

            mPerf.perfLockAcquire(2000,0x1B00);

            mIsPerfLockAcquired = true;

        }

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

        return null;

    }