Merge "platform/frameworks/base: Move different processes to their respective cgroups" (f7803de0) · Commits · e / os / android_frameworks_base

core/java/android/os/Process.java

+2 −2

Original line number	Diff line number	Diff line
		@@ -923,14 +923,14 @@ public class Process {
		* Adjust the swappiness level for a process.
		*
		* @param pid The process identifier to set.
		* @param is_increased Whether swappiness should be increased or default.
		* @param adj The process type for which swappiness to be set.
		*
		* @return Returns true if the underlying system supports this
		* feature, else false.
		*
		* {@hide}
		*/
		public static final native boolean setSwappiness(int pid, boolean is_increased);
		public static final native boolean setSwappiness(int pid, int adj);

		/**
		* Change this process's argv[0] parameter. This can be useful to show

core/jni/android_util_Process.cpp

+20 −7

Original line number	Diff line number	Diff line
		@@ -53,6 +53,13 @@ static pthread_key_t gBgKey = -1;

		// For both of these, err should be in the errno range (positive), not a status_t (negative)

		enum cgroup_task_id {
		CGROUP_TASK_PERSISTENT=-12,
		CGROUP_TASK_DEFAULT=-1,
		CGROUP_TASK_FOREGROUND=0,
		CGROUP_TASK_BACKGROUND=9
		};

		static void signalExceptionForPriorityError(JNIEnv* env, int err)
		{
		switch (err) {
		@@ -362,13 +369,19 @@ jboolean android_os_Process_setOomAdj(JNIEnv* env, jobject clazz,
		}

		jboolean android_os_Process_setSwappiness(JNIEnv *env, jobject clazz,
		jint pid, jboolean is_increased)
		jint pid, jint adj)
		{
		char text[64];

		if (is_increased) {
		strcpy(text, "/sys/fs/cgroup/memory/sw/tasks");
		} else {
		ALOGD("android_os_Process_setSwappiness start, pid = %d, adj = %d",pid,adj) ;

		if (adj == CGROUP_TASK_FOREGROUND) {
		strcpy(text, "/sys/fs/cgroup/memory/foreground/tasks");
		} else if (adj == CGROUP_TASK_BACKGROUND){
		strcpy(text, "/sys/fs/cgroup/memory/background/tasks");
		} else if (adj == CGROUP_TASK_PERSISTENT){
		strcpy(text, "/sys/fs/cgroup/memory/persistent/tasks");
		} else if (adj == CGROUP_TASK_DEFAULT){
		strcpy(text, "/sys/fs/cgroup/memory/tasks");
		}

		@@ -383,7 +396,7 @@ jboolean android_os_Process_setSwappiness(JNIEnv *env, jobject clazz,
		write(fd, text, strlen(text));
		close(fd);
		}

		ALOGD("android_os_Process_setSwappiness end, pid = %d, adj = %d",pid,adj);
		return true;
		}

		@@ -1024,7 +1037,7 @@ static const JNINativeMethod methods[] = {
		{"setProcessGroup", "(II)V", (void*)android_os_Process_setProcessGroup},
		{"getProcessGroup", "(I)I", (void*)android_os_Process_getProcessGroup},
		{"setOomAdj", "(II)Z", (void*)android_os_Process_setOomAdj},
		{"setSwappiness", "(IZ)Z", (void*)android_os_Process_setSwappiness},
		{"setSwappiness", "(II)Z", (void*)android_os_Process_setSwappiness},
		{"setArgV0", "(Ljava/lang/String;)V", (void*)android_os_Process_setArgV0},
		{"setUid", "(I)I", (void*)android_os_Process_setUid},
		{"setGid", "(I)I", (void*)android_os_Process_setGid},

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

+15 −3

Original line number	Diff line number	Diff line
		@@ -15377,6 +15377,20 @@ public final class ActivityManagerService extends ActivityManagerNative

		if (app.curAdj != app.setAdj) {
		if (Process.setOomAdj(app.pid, app.curAdj)) {
		if (app.curAdj >= ProcessList.CACHED_APP_MIN_ADJ) {
		Process.setSwappiness(app.pid,ProcessList.CACHED_APP_MIN_ADJ);
		} else
		if (app.curAdj == ProcessList.FOREGROUND_APP_ADJ) {
		Process.setSwappiness(app.pid,ProcessList.FOREGROUND_APP_ADJ);
		} else
		if (app.curAdj == ProcessList.PERSISTENT_PROC_ADJ) {
		Process.setSwappiness(app.pid,ProcessList.PERSISTENT_PROC_ADJ);
		} else
		if (app.curAdj == ProcessList.HOME_APP_ADJ) {
		Process.setSwappiness(app.pid,ProcessList.FOREGROUND_APP_ADJ);
		} else {
		Process.setSwappiness(app.pid,-1);
		}
		if (DEBUG_SWITCH \|\| DEBUG_OOM_ADJ) Slog.v(
		TAG, "Set " + app.pid + " " + app.processName +
		" adj " + app.curAdj + ": " + app.adjType);
		@@ -15415,8 +15429,6 @@ public final class ActivityManagerService extends ActivityManagerNative
		}
		}
		}
		Process.setSwappiness(app.pid,
		app.curSchedGroup <= Process.THREAD_GROUP_BG_NONINTERACTIVE);
		}
		}
		if (app.repProcState != app.curProcState) {