Update the reference profile from .dm files only during installs
In order to speed up first boot time we only create the current profile
and do not update the content of the reference profile. A system image
should already be configured with the right profile keys and the
profiles for the speed-profile prebuilds should already be copied (that's
done in #performDexOptUpgrade).
Test: manual (install apps and splits, take OTA)
Bug: 114046578
Change-Id: I99db76684430b929c52634c25b457e874648e205
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index 91af0ec..4a7b2f6 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -15336,7 +15336,9 @@
// This needs to be done before invoking dexopt so that any install-time profile
// can be used for optimizations.
mArtManagerService.prepareAppProfiles(
- pkg, resolveUserIds(reconciledPkg.installForUser.getIdentifier()));
+ pkg,
+ resolveUserIds(reconciledPkg.installForUser.getIdentifier()),
+ /* updateReferenceProfileContent= */ true);
// Check whether we need to dexopt the app.
//
@@ -21184,8 +21186,18 @@
//
// We also have to cover non system users because we do not call the usual install package
// methods for them.
+ //
+ // NOTE: in order to speed up first boot time we only create the current profile and do not
+ // update the content of the reference profile. A system image should already be configured
+ // with the right profile keys and the profiles for the speed-profile prebuilds should
+ // already be copied. That's done in #performDexOptUpgrade.
+ //
+ // TODO(calin, mathieuc): We should use .dm files for prebuilds profiles instead of
+ // manually copying them in #performDexOptUpgrade. When we do that we should have a more
+ // granular check here and only update the existing profiles.
if (mIsUpgrade || mFirstBoot || (userId != UserHandle.USER_SYSTEM)) {
- mArtManagerService.prepareAppProfiles(pkg, userId);
+ mArtManagerService.prepareAppProfiles(pkg, userId,
+ /* updateReferenceProfileContent= */ false);
}
if ((flags & StorageManager.FLAG_STORAGE_CE) != 0 && ceDataInode != -1) {
diff --git a/services/core/java/com/android/server/pm/dex/ArtManagerService.java b/services/core/java/com/android/server/pm/dex/ArtManagerService.java
index 21daa39..910ea73 100644
--- a/services/core/java/com/android/server/pm/dex/ArtManagerService.java
+++ b/services/core/java/com/android/server/pm/dex/ArtManagerService.java
@@ -389,7 +389,8 @@
* - create the current primary profile to save time at app startup time.
* - copy the profiles from the associated dex metadata file to the reference profile.
*/
- public void prepareAppProfiles(PackageParser.Package pkg, @UserIdInt int user) {
+ public void prepareAppProfiles(PackageParser.Package pkg, @UserIdInt int user,
+ boolean updateReferenceProfileContent) {
final int appId = UserHandle.getAppId(pkg.applicationInfo.uid);
if (user < 0) {
Slog.wtf(TAG, "Invalid user id: " + user);
@@ -404,8 +405,14 @@
for (int i = codePathsProfileNames.size() - 1; i >= 0; i--) {
String codePath = codePathsProfileNames.keyAt(i);
String profileName = codePathsProfileNames.valueAt(i);
- File dexMetadata = DexMetadataHelper.findDexMetadataForFile(new File(codePath));
- String dexMetadataPath = dexMetadata == null ? null : dexMetadata.getAbsolutePath();
+ String dexMetadataPath = null;
+ // Passing the dex metadata file to the prepare method will update the reference
+ // profile content. As such, we look for the dex metadata file only if we need to
+ // perform an update.
+ if (updateReferenceProfileContent) {
+ File dexMetadata = DexMetadataHelper.findDexMetadataForFile(new File(codePath));
+ dexMetadataPath = dexMetadata == null ? null : dexMetadata.getAbsolutePath();
+ }
synchronized (mInstaller) {
boolean result = mInstaller.prepareAppProfile(pkg.packageName, user, appId,
profileName, codePath, dexMetadataPath);
@@ -423,9 +430,10 @@
/**
* Prepares the app profiles for a set of users. {@see ArtManagerService#prepareAppProfiles}.
*/
- public void prepareAppProfiles(PackageParser.Package pkg, int[] user) {
+ public void prepareAppProfiles(PackageParser.Package pkg, int[] user,
+ boolean updateReferenceProfileContent) {
for (int i = 0; i < user.length; i++) {
- prepareAppProfiles(pkg, user[i]);
+ prepareAppProfiles(pkg, user[i], updateReferenceProfileContent);
}
}