am 65052ba4: am e2565aec: am e20eff91: am 3491da4e: Merge "Enable migration to big cores for app launches." into mnc-dr-dev
* commit '65052ba4fa266dcf3a31c51317418301fe6d1a0a':
Enable migration to big cores for app launches.
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 09ac7d9..3554c39 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -407,6 +407,17 @@
private static final int PERSISTENT_MASK =
ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PERSISTENT;
+
+ // Delay to disable app launch boost
+ static final int APP_BOOST_MESSAGE_DELAY = 3000;
+ // Lower delay than APP_BOOST_MESSAGE_DELAY to disable the boost
+ static final int APP_BOOST_TIMEOUT = 2500;
+
+ private static native int nativeMigrateToBoost();
+ private static native int nativeMigrateFromBoost();
+ private boolean mIsBoosted = false;
+ private long mBoostStartTime = 0;
+
/** All system services */
SystemServiceManager mSystemServiceManager;
@@ -1368,6 +1379,7 @@
static final int REPORT_TIME_TRACKER_MSG = 55;
static final int REPORT_USER_SWITCH_COMPLETE_MSG = 56;
static final int SHUTDOWN_UI_AUTOMATION_CONNECTION_MSG = 57;
+ static final int APP_BOOST_DEACTIVATE_MSG = 58;
static final int FIRST_ACTIVITY_STACK_MSG = 100;
static final int FIRST_BROADCAST_QUEUE_MSG = 200;
@@ -2048,6 +2060,20 @@
// it is finished we make sure it is reset to its default.
mUserIsMonkey = false;
} break;
+ case APP_BOOST_DEACTIVATE_MSG : {
+ synchronized(ActivityManagerService.this) {
+ if (mIsBoosted) {
+ if (mBoostStartTime < (SystemClock.uptimeMillis() - APP_BOOST_TIMEOUT)) {
+ nativeMigrateFromBoost();
+ mIsBoosted = false;
+ mBoostStartTime = 0;
+ } else {
+ Message newmsg = mHandler.obtainMessage(APP_BOOST_DEACTIVATE_MSG);
+ mHandler.sendMessageDelayed(newmsg, APP_BOOST_TIMEOUT);
+ }
+ }
+ }
+ } break;
}
}
};
@@ -3180,6 +3206,16 @@
app = null;
}
+ // app launch boost for big.little configurations
+ // use cpusets to migrate freshly launched tasks to big cores
+ synchronized(ActivityManagerService.this) {
+ nativeMigrateToBoost();
+ mIsBoosted = true;
+ mBoostStartTime = SystemClock.uptimeMillis();
+ Message msg = mHandler.obtainMessage(APP_BOOST_DEACTIVATE_MSG);
+ mHandler.sendMessageDelayed(msg, APP_BOOST_MESSAGE_DELAY);
+ }
+
// We don't have to do anything more if:
// (1) There is an existing application record; and
// (2) The caller doesn't think it is dead, OR there is no thread
diff --git a/services/core/jni/Android.mk b/services/core/jni/Android.mk
index 9556b08..98d8d08 100644
--- a/services/core/jni/Android.mk
+++ b/services/core/jni/Android.mk
@@ -4,9 +4,16 @@
LOCAL_CFLAGS += -Wall -Werror -Wno-unused-parameter
+ifneq ($(ENABLE_CPUSETS),)
+ifneq ($(ENABLE_SCHED_BOOST),)
+LOCAL_CFLAGS += -DUSE_SCHED_BOOST
+endif
+endif
+
LOCAL_SRC_FILES += \
$(LOCAL_REL_DIR)/com_android_server_AlarmManagerService.cpp \
$(LOCAL_REL_DIR)/com_android_server_am_BatteryStatsService.cpp \
+ $(LOCAL_REL_DIR)/com_android_server_am_ActivityManagerService.cpp \
$(LOCAL_REL_DIR)/com_android_server_AssetAtlasService.cpp \
$(LOCAL_REL_DIR)/com_android_server_connectivity_Vpn.cpp \
$(LOCAL_REL_DIR)/com_android_server_ConsumerIrService.cpp \
diff --git a/services/core/jni/com_android_server_am_ActivityManagerService.cpp b/services/core/jni/com_android_server_am_ActivityManagerService.cpp
new file mode 100644
index 0000000..52217b9
--- /dev/null
+++ b/services/core/jni/com_android_server_am_ActivityManagerService.cpp
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "ActivityManagerService"
+//#define LOG_NDEBUG 0
+
+#include <android_runtime/AndroidRuntime.h>
+#include <jni.h>
+
+#include <ScopedLocalRef.h>
+#include <ScopedPrimitiveArray.h>
+
+#include <cutils/log.h>
+#include <utils/misc.h>
+#include <utils/Log.h>
+
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <semaphore.h>
+#include <stddef.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+namespace android
+{
+
+ // migrate from foreground to foreground_boost
+ static jint migrateToBoost(JNIEnv *env, jobject _this)
+ {
+#ifdef USE_SCHED_BOOST
+ // File descriptors open to /dev/cpuset/../tasks, setup by initialize, or -1 on error
+ FILE* fg_cpuset_file = NULL;
+ int boost_cpuset_fd = 0;
+ if (!access("/dev/cpuset/tasks", F_OK)) {
+ fg_cpuset_file = fopen("/dev/cpuset/foreground/tasks", "r+");
+ if (ferror(fg_cpuset_file)) {
+ return 0;
+ }
+ boost_cpuset_fd = open("/dev/cpuset/foreground/boost/tasks", O_WRONLY);
+ if (boost_cpuset_fd < 0) {
+ fclose(fg_cpuset_file);
+ return 0;
+ }
+
+ }
+ if (!fg_cpuset_file || !boost_cpuset_fd) {
+ fclose(fg_cpuset_file);
+ close(boost_cpuset_fd);
+ return 0;
+ }
+ char buf[17];
+ while (fgets(buf, 16, fg_cpuset_file)) {
+ int i = 0;
+ for (; i < 16; i++) {
+ if (buf[i] == '\n') {
+ buf[i] = 0;
+ break;
+ }
+ }
+ if (write(boost_cpuset_fd, buf, i) < 0) {
+ // ignore error
+ }
+ if (feof(fg_cpuset_file))
+ break;
+ }
+ fclose(fg_cpuset_file);
+ close(boost_cpuset_fd);
+#endif
+ return 0;
+ }
+
+ // migrate from foreground_boost to foreground
+ static jint migrateFromBoost(JNIEnv *env, jobject _this)
+ {
+#ifdef USE_SCHED_BOOST
+ // File descriptors open to /dev/cpuset/../tasks, setup by initialize, or -1 on error
+ int fg_cpuset_fd = 0;
+ FILE* boost_cpuset_file = NULL;
+ if (!access("/dev/cpuset/tasks", F_OK)) {
+ boost_cpuset_file = fopen("/dev/cpuset/foreground/boost/tasks", "r+");
+ if (ferror(boost_cpuset_file)) {
+ return 0;
+ }
+ fg_cpuset_fd = open("/dev/cpuset/foreground/tasks", O_WRONLY);
+ if (fg_cpuset_fd < 0) {
+ fclose(boost_cpuset_file);
+ return 0;
+ }
+
+ }
+ if (!boost_cpuset_file || !fg_cpuset_fd) {
+ fclose(boost_cpuset_file);
+ close(fg_cpuset_fd);
+ return 0;
+ }
+ char buf[17];
+ char *curBuf = buf;
+ while (fgets(buf, 16, boost_cpuset_file)) {
+ //ALOGE("Appending FD %s to fg", buf);
+ int i = 0;
+ for (; i < 16; i++) {
+ if (buf[i] == '\n') {
+ buf[i] = 0;
+ break;
+ }
+ }
+ if (write(fg_cpuset_fd, buf, i) < 0) {
+ //ALOGE("Appending FD %s to fg ERROR", buf);
+ // handle error?
+ }
+ if (feof(boost_cpuset_file))
+ break;
+ }
+
+ close(fg_cpuset_fd);
+ fclose(boost_cpuset_file);
+
+#endif
+ return 0;
+
+ }
+
+
+ static JNINativeMethod method_table[] = {
+ { "nativeMigrateToBoost", "()I", (void*)migrateToBoost },
+ { "nativeMigrateFromBoost", "()I", (void*)migrateFromBoost },
+ };
+
+ int register_android_server_ActivityManagerService(JNIEnv *env)
+ {
+ return jniRegisterNativeMethods(env, "com/android/server/am/ActivityManagerService",
+ method_table, NELEM(method_table));
+ }
+
+}
diff --git a/services/core/jni/onload.cpp b/services/core/jni/onload.cpp
index 67872da..1f3fde6 100644
--- a/services/core/jni/onload.cpp
+++ b/services/core/jni/onload.cpp
@@ -20,6 +20,7 @@
#include "utils/misc.h"
namespace android {
+int register_android_server_ActivityManagerService(JNIEnv* env);
int register_android_server_AlarmManagerService(JNIEnv* env);
int register_android_server_AssetAtlasService(JNIEnv* env);
int register_android_server_BatteryStatsService(JNIEnv* env);
@@ -57,6 +58,7 @@
}
ALOG_ASSERT(env, "Could not retrieve the env!");
+ register_android_server_ActivityManagerService(env);
register_android_server_PowerManagerService(env);
register_android_server_SerialService(env);
register_android_server_InputApplicationHandle(env);
@@ -80,5 +82,6 @@
register_android_server_PersistentDataBlockService(env);
register_android_server_Watchdog(env);
+
return JNI_VERSION_1_4;
}