MTK android 如何减少lowmemory的发生几率

[DESCRIPTION]

内存不足时常发生卡顿，甚至是死机重启问题，需要尽量减少内存不足情况的发生

[SOLUTION]

（1）减少后台进程的数量    

修改frameworks\base\services\core\java\com\android\server\am\ProcessList.java

static final int MAX_CACHED_APPS = 32; // 改为 static final int MAX_CACHED_APPS = 8;

或者/frameworks/base/services/core/java/com/android/server/am/ActivityManagerConstants.java

1. private static final int DEFAULT_MAX_CACHED_PROCESSES = 32;

复制代码

（2）调整Low Memory Killer minifree门限值，frameworks\base\services\core\java\com\android\server\am\ProcessList.java中，

调整下面的mOomMinFreeHigh里面的后三项 ，分别增大1.1倍、1.2倍、1.5倍。

1. // These are the high-end OOM level limits. This is appropriate for a
2. // 1280x800 or larger screen with around 1GB RAM. Values are in KB.
3. private final int[] mOomMinFreeHigh = new int[] {
4. 73728, 92160, 110592,
5. 129024, 147456, 184320
6. };