antutu跑分 火力全开

• 首先说明不是作假，是让antutu跑分的时候全开cpu

我们要知道向antutu 鲁大师等跑分app作为三方app运行在手机上的时候，也是收到cpu调度影响的，正常情况是不可能全核满频率跑的，对系统来说它就是个三方app 没啥特殊对待的。所以我们想要跑分上去可以在系统上做特殊处理

• 熟悉activity的启动流程的就知道Instrumentation.java 这个大管家的重要性，我们可以在这里监听应用是否在跑

public void callActivityOnResume(Activity activity) {
         activity.mResumed = true;
         activity.onResume();    
+        String packageName = activity.getComponentName().getPackageName();
+        if("com.antutu.ABenchMark".equals(packageName)||"com.antutu.benchmark.full".equals(packageName)){
+            IActivityManager am = ActivityManager.getService();
+            try {
+                am.setCpuAll(true);
+            } catch (RemoteException ex) {
+                throw ex.rethrowFromSystemServer();
+            }
+        
+

  public void callActivityOnPause(Activity activity) {
         activity.performPause();
+        String packageName = activity.getComponentName().getPackageName();
+        if("com.antutu.ABenchMark".equals(packageName)||"com.antutu.benchmark.full".equals(packageName)){
+            IActivityManager am = ActivityManager.getService();
+            try {
+                am.setCpuAll(false);
+            } catch (RemoteException ex) {
+                throw ex.rethrowFromSystemServer();
+            }
+        }
     }

• 我们把全开cpu的方法放这里 ActivityManagerService.java （这里mtk平台提供了一个方法perfLockAcquire，高通平台类似，都能满足我们的目的）

+    @Override
+    public void setCpuAll(boolean enable){
+        //SystemProperties.set("persist.sys.cpu_all", enable? "1":"0");
+        if(enable){
+            setAllCpuOpen();
+        }else{
+            perfUnLockAcquireCpu();
+        }
+    }
+    /// @}
+
+    private int hander =0;
+    private void setAllCpuOpen(){
+        if(mPowerProxy==null) return;
+            int PERF_RES_CPUFREQ_MIN_CLUSTER_0 = 0x00400000;
+            int PERF_RES_CPUFREQ_MIN_CLUSTER_1 = 0x00400100;
+            int PERF_RES_CPUCORE_MIN_CLUSTER_0 = 0x00800000;
+            int PERF_RES_CPUCORE_MIN_CLUSTER_1 = 0x00800100;
+            int PERF_RES_DRAM_OPP_MIN = 0x01000000;
+            /* min of cluster 0 = 4 core=> 4L  && L runs @ 1.3GHz atleast */
+            int[] perf_lock_opts =
+                    {PERF_RES_CPUCORE_MIN_CLUSTER_0, 4,
+                            PERF_RES_CPUCORE_MIN_CLUSTER_1, 4,
+                            PERF_RES_CPUFREQ_MIN_CLUSTER_0, 2001000,//mt8788
+                            PERF_RES_CPUFREQ_MIN_CLUSTER_1,1500000,
+                           PERF_RES_DRAM_OPP_MIN,0};//mt8788
+            if (hander != 0) {
+                mPowerProxy.perfLockRelease(hander);
+                hander = 0;
+            }
+            hander = mPowerProxy.perfLockAcquire(hander, 10000, perf_lock_opts);//max 30s
+            if(hander>0){
+                mHandler.removeMessages(MSG_OPEN_ALL_CPU);
+                 mHandler.sendEmptyMessageDelayed(MSG_OPEN_ALL_CPU,10000);
+            }
+    }
+    /**
+     * unlockCpu
+     */
+    public void perfUnLockAcquireCpu(){
+        if (hander != 0) {
+            if(mPowerProxy==null) return;
+           mHandler.removeMessages(MSG_OPEN_ALL_CPU);
+            mPowerProxy.perfLockRelease(hander);
+            hander = 0;
+        }
+    }

• 对于一些性能问题，可以让cpu全核开，看看还有没有问题，如果好了可以对这个场景做拉高cpu操作

固定当前频率
adb shell "echo 4 > /proc/ppm/policy/ut_fix_core_num"
adb shell "echo 0 > /proc/ppm/policy/ut_fix_freq_idx "
adb shell "echo 570000 > /proc/gpufreq/gpufreq_opp_freq"

adb shell cat /proc/cpufreq/MT_CPU_DVFS_LL/cpufreq_oppidx
adb shell cat /proc/cpufreq/MT_CPU_DVFS_LL/cpufreq_freq
adb shell cat /proc/gpufreq/gpufreq_opp_dump
adb shell "cat /proc/gpufreq/gpufreq_var_dump"

adb shell cat /proc/cpufreq/MT_CPU_DVFS_LL/cpufreq_oppidx
adb shell cat /proc/cpufreq/MT_CPU_DVFS_L/cpufreq_oppidx

大核：
cat /proc/cpufreq/MT_CPU_DVFS_L/cpufreq

小核：

cat /proc/cpufreq/MT_CPU_DVFS_LL/cpufreq

查看

:/ # cat /proc/cpufreq/MT_CPU_DVFS_L/cpufreq_oppidx 大核
[MT_CPU_DVFS_L/0]
cpufreq_oppidx = 15
0 (2001000, 101875)
1 (1961000, 101875)
2 (1927000, 101250)
3 (1897000, 100625)
4 (1868000, 100000)
5 (1838000, 97500)
6 (1809000, 93750)
7 (1779000, 90000)
8 (1750000, 85625)
9 (1617000, 81875)
10 (1484000, 78125)
11 (1351000, 74375)
12 (1218000, 70625)
13 (1085000, 66250)
14 (979000, 63125)
15 (900000, 61250)
:/ # cat /proc/ppm/policy/ut_fix_core_num 查看核数
cluster 0 fix core num = -1
cluster 1 fix core num = -1
:/ # ^C
/ # cat /proc/cpufreq/MT_CPU_DVFS_LL/cpufreq_oppidx 小核
[MT_CPU_DVFS_LL/4]
cpufreq_oppidx = 15
0 (1500000, 101875)
1 (1429000, 99375)
2 (1367000, 96250)
3 (1314000, 94375)
4 (1261000, 93125)
5 (1208000, 91250)
6 (1155000, 89375)
7 (1102000, 87500)
8 (1050000, 86250)
9 (948000, 82500)
10 (846000, 78750)
11 (745000, 75000)
12 (643000, 71250)
13 (542000, 67500)
14 (501000, 65625)
15 (400000, 62500)
Tab_10:/ #

切换成userspace
/ # echo userspace> sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
/ # echo userspace> sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
:/ # echo userspace> sys/devices/system/cpu/cpu2/cpufreq/scaling_governor
:/ # echo userspace> sys/devices/system/cpu/cpu3/cpufreq/scaling_governor
/ # echo userspace> sys/devices/system/cpu/cpu4/cpufreq/scaling_governor
:/ # echo userspace> sys/devices/system/cpu/cpu5/cpufreq/scaling_governor
/ # echo userspace> sys/devices/system/cpu/cpu6/cpufreq/scaling_governor
:/ # echo userspace> sys/devices/system/cpu/cpu7/cpufreq/scaling_governor

有效的固定频率方法：
怀疑是CPU 高档位有问题, 需要做实验确认.
adb shell "echo 4 4 > /proc/ppm/policy/ut_fix_core_num"
adb shell "echo 0 > /proc/ppm/root_cluster"
adb shell "echo 0 0 > /proc/ppm/policy/ut_fix_freq_idx"