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Merge "Add use_app_image_startup_cache feature flag"

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This commit is contained in:
Mathieu Chartier
2019-02-07 21:28:37 +00:00
committed by Gerrit Code Review
parent 21b38267fa f5cd8c1601
commit b5a69ab764
2 changed files with 15 additions and 0 deletions
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5
core/java/com/android/internal/os/Zygote.java
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@@ -93,6 +93,11 @@ public final class Zygote {
*/ */
public static final int PROFILE_SYSTEM_SERVER = 1 << 14; public static final int PROFILE_SYSTEM_SERVER = 1 << 14;
/*
* Enable using the ART app image startup cache
*/
public static final int USE_APP_IMAGE_STARTUP_CACHE = 1 << 16;
/** No external storage should be mounted. */ /** No external storage should be mounted. */
public static final int MOUNT_EXTERNAL_NONE = IVold.REMOUNT_MODE_NONE; public static final int MOUNT_EXTERNAL_NONE = IVold.REMOUNT_MODE_NONE;
/** Default external storage should be mounted. */ /** Default external storage should be mounted. */

10
core/java/com/android/internal/os/ZygoteInit.java
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@@ -41,6 +41,7 @@ import android.system.OsConstants;
import android.system.StructCapUserData; import android.system.StructCapUserData;
import android.system.StructCapUserHeader; import android.system.StructCapUserHeader;
import android.text.Hyphenator; import android.text.Hyphenator;
import android.text.TextUtils;
import android.util.EventLog; import android.util.EventLog;
import android.util.Log; import android.util.Log;
import android.util.Slog; import android.util.Slog;
@@ -84,6 +85,8 @@ public class ZygoteInit {
private static final String PROPERTY_DISABLE_OPENGL_PRELOADING = "ro.zygote.disable_gl_preload"; private static final String PROPERTY_DISABLE_OPENGL_PRELOADING = "ro.zygote.disable_gl_preload";
private static final String PROPERTY_GFX_DRIVER = "ro.gfx.driver.0"; private static final String PROPERTY_GFX_DRIVER = "ro.gfx.driver.0";
private static final String PROPERTY_USE_APP_IMAGE_STARTUP_CACHE =
"persist.device_config.runtime_native.use_app_image_startup_cache";
private static final int LOG_BOOT_PROGRESS_PRELOAD_START = 3020; private static final int LOG_BOOT_PROGRESS_PRELOAD_START = 3020;
private static final int LOG_BOOT_PROGRESS_PRELOAD_END = 3030; private static final int LOG_BOOT_PROGRESS_PRELOAD_END = 3030;
@@ -705,6 +708,13 @@ public class ZygoteInit {
parsedArgs.mRuntimeFlags |= Zygote.PROFILE_SYSTEM_SERVER; parsedArgs.mRuntimeFlags |= Zygote.PROFILE_SYSTEM_SERVER;
} }
String use_app_image_cache = SystemProperties.get(
PROPERTY_USE_APP_IMAGE_STARTUP_CACHE, "");
// Property defaults to true currently.
if (!TextUtils.isEmpty(use_app_image_cache) && !use_app_image_cache.equals("false")) {
parsedArgs.mRuntimeFlags |= Zygote.USE_APP_IMAGE_STARTUP_CACHE;
}
/* Request to fork the system server process */ /* Request to fork the system server process */
pid = Zygote.forkSystemServer( pid = Zygote.forkSystemServer(
parsedArgs.mUid, parsedArgs.mGid, parsedArgs.mUid, parsedArgs.mGid,