【android】进程优先级(Framework设置优先级,LowMemoryKiller查杀)

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static final int NATIVE_ADJ = -17;

static final int SYSTEM_ADJ = -16; // 系统进程 (init + system-server)

static final int PERSISTENT_PROC_ADJ = -12; //核心进程

static final int FOREGROUND_APP_ADJ = 0; //前台进程

static final int VISIBLE_APP_ADJ = 1; //可见进程

static final int PERCEPTIBLE_APP_ADJ = 2; //可感知进程

static final int BACKUP_APP_ADJ = 3;

static final int HEAVY_WEIGHT_APP_ADJ = 4; //重量进程

static final int SERVICE_ADJ = 5; //服务进程

static final int HOME_APP_ADJ = 6; //Home进程

static final int PREVIOUS_APP_ADJ = 7; //前个进程

static final int SERVICE_B_ADJ = 8;

static final int CACHED_APP_MIN_ADJ = 9;

static final int CACHED_APP_MAX_ADJ = 15;

static final int UNKNOWN_ADJ = 16;

优先级所剩内存

0 --------- 3 *512, /* 6MB */

1 --------- 2 *1024, /* 8MB */

6 --------- 4 *1024, /* 16MB */

12 --------- 16 *1024, /* 64MB */

(可杀进程中)优先级最低+占有内存最多

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