Increase the max binder thread pool size for system_server. (eef4a3d5) · Commits · e / os / android_frameworks_base

core/java/com/android/internal/os/BinderInternal.java

+2 −0

Original line number	Diff line number	Diff line
		@@ -94,6 +94,8 @@ public class BinderInternal {
		*/
		public static final native void disableBackgroundScheduling(boolean disable);

		public static final native void setMaxThreads(int numThreads);

		static native final void handleGc();

		public static void forceGc(String reason) {

+7 −0

Original line number	Diff line number	Diff line
		@@ -917,6 +917,12 @@ static void android_os_BinderInternal_disableBackgroundScheduling(JNIEnv* env,
		IPCThreadState::disableBackgroundScheduling(disable ? true : false);
		}

		static void android_os_BinderInternal_setMaxThreads(JNIEnv* env,
		jobject clazz, jint maxThreads)
		{
		ProcessState::self()->setThreadPoolMaxThreadCount(maxThreads);
		}

		static void android_os_BinderInternal_handleGc(JNIEnv* env, jobject clazz)
		{
		ALOGV("Gc has executed, clearing binder ops");
		@@ -930,6 +936,7 @@ static const JNINativeMethod gBinderInternalMethods[] = {
		{ "getContextObject", "()Landroid/os/IBinder;", (void*)android_os_BinderInternal_getContextObject },
		{ "joinThreadPool", "()V", (void*)android_os_BinderInternal_joinThreadPool },
		{ "disableBackgroundScheduling", "(Z)V", (void*)android_os_BinderInternal_disableBackgroundScheduling },
		{ "setMaxThreads", "(I)V", (void*)android_os_BinderInternal_setMaxThreads },
		{ "handleGc", "()V", (void*)android_os_BinderInternal_handleGc }
		};

+7 −0

Original line number	Diff line number	Diff line
		@@ -165,6 +165,10 @@ public final class SystemServer {
		private static final String UNCRYPT_PACKAGE_FILE = "/cache/recovery/uncrypt_file";
		private static final String BLOCK_MAP_FILE = "/cache/recovery/block.map";

		// maximum number of binder threads used for system_server
		// will be higher than the system default
		private static final int sMaxBinderThreads = 31;

		/**
		* Default theme used by the system context. This is used to style
		* system-provided dialogs, such as the Power Off dialog, and other
		@@ -285,6 +289,9 @@ public final class SystemServer {
		// Ensure binder calls into the system always run at foreground priority.
		BinderInternal.disableBackgroundScheduling(true);

		// Increase the number of binder threads in system_server
		BinderInternal.setMaxThreads(sMaxBinderThreads);

		// Prepare the main looper thread (this thread).
		android.os.Process.setThreadPriority(
		android.os.Process.THREAD_PRIORITY_FOREGROUND);